Rasterio Merge Example

Skip to content. property affine¶ Raster affine. RasterIO()调用将会处理缓冲区数据类型和波段数据类型的转换。 Note that when converting floating point data to integer RasterIO() rounds down, and when converting source values outside the legal range of the output the nearest legal value is used. csv file in ArcGIS for Desktop 10. You can merge all files in a directory if you check the 'use input directory instead of files' option in the Merge dialog. If you need to use a raster PNG badge, change the '. I don't mean to disparage SVN or any other non-DVCS; rather I just wanted to point out that I am using Git because I value non-sequential history in some cases. An example is the Sentinel satellites, which acquire data at a high temporal resolution while covering most parts of the world and follow a free and open data policy. vrt contours. Note: Merging sequences by length is the same as joining trees by frequency in Huffman coding. tgz 15-Apr-2019 06:02 33373258 0ad-data-0. You can vote up the examples you like or vote down the ones you don't like. XXX, Alma keeps the 260 field and adds the 264 during merge processing (as if the "if exists" is written). import rasterio import numpy as np import matplotlib. rio_plugins' entry point in your setup. tgz 15-Aug-2019 06. 2010-06-22. # Merge a bunch of shapefiles with attributes quickly! import glob import shapefile files = glob. The following are code examples for showing how to use skimage. Hello, I have a PNG file with some transparent areas. EE example - fishing in Asia (20% fish are illegall caught). read_file ( geopandas. * @param pProgressData application data to pass to the progress function. There are some useful things that work very well, other things that were hastily written for a one-off task several years ago, and some confusing things that were never finished. WriteRaster, Dataset. Note, in the following example we are assuming you have the Python Imaging Library installed. py未正确分配NoData值. Rasterio è progettato per rendere più produttivo e divertente il lavoro con dati raster geospaziali. GDAL command line tools. , with different files corresponding to different model runs. Some Microsoft Office products (e. open(pix) as src: affine = src. For details on the difference between these functions see Combining data. The Merge Rasters function represents a grouped or merged collection of rasters. Rasterio legge e scrive insiemi di dati raster geospaziali. read_file ( geopandas. Cheat sheet for GDAL/OGR command-line geodata tools. one column, different abstracts, different bibliographies,. rio is the CLI for the rasterio library. DataArray ([ 1 , 2 ], coords = { 'c' : 0 }, dims = 'x' ) In [83]: b = xray. Here's an example of the feature:. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Cell size of raster data The level of detail (of features/phenomena) represented by a raster is often dependent on the cell (pixel) size, or spatial resolution , of the raster. js with this native GDAL binding. 2010-06-18. Those are just a few examples of what you can do. Debian International / Zentrale Übersetzungsstatistik von Debian / PO / PO-Dateien – Pakete, die nicht internationalisiert sind. Rasterio reads and writes geospatial raster datasets - mapbox/rasterio. Switching to the overpass-turbo application, request information about all the parks in Nottingham. py未正确分配NoData值. merge_dims (coords_list) Merge the coordinates. ogrinfo -al -so input. Note that when converting floating point data to integer RasterIO() rounds down, and when converting source values outside the legal range of the output the nearest legal value is used. The most common way to merge directories in Linux system is to use rsync with --remove-source-files option. As you might remember from our earlier lessons, combining data from different tables based on common key attribute can be done easily in Pandas/Geopandas using. The script conducts the following analysis:. 5+dfsg-0ubuntu1 amd64 qtwayland5/bionic,now 5. I have a data set consisting from $7$-dimensional data points. xarray can straightforwardly combine such files into a single Dataset by making use of concat(), merge(), combine_nested() and combine_by_coords(). the result table contains a json column containing json documents made of the merge of json documents fields included in table B with column-values of table A. Rasterio reads and writes geospatial raster datasets - mapbox/rasterio. Generally speaking the classes and methods mostly match those of the GDAL and OGR C++ classes. OGGM runs on all major platforms (Windows, Mac, and Linux) but we recommend using Linux as this is the platform it is most tested on. rio merge hyperion_geo. This tool can be used to create a raster mask for another raster layer. API Reference¶. paste command, by definition of man page, is used to merge lines of files. When I run different combinations of apt-get or aptitude I always ge. tif merged_result. write(total. The recommended way to store xarray data structures is netCDF, which is a binary file format for self-described datasets that originated in the geosciences. Here are the steps to follow to clip raster using this method. The following are code examples for showing how to use shapely. The most common way to merge directories in Linux system is to use rsync with --remove-source-files option. I'm new to rasterio. The cell must be small enough to capture the required detail but large enough so computer storage and analysis can be performed efficiently. GDAL is used to select a portion of the image to make the processing more manageable. I want to concatenate all the forward read XXXXX_R1_001. The simplest way would just be to invoke gdal_translate (e. Minimum rasterio version increased from 0. 8 added a “merge_minify_refresh_done” hook that fires when JS or CSS has changed. set_options (**kwargs) Set options for xarray in a controlled context. It is always told as a fact without explaining the reason. com , recently posted about merging shapefiles using a batch process. open(' example-total. This package contains the Python 2 version of the library. This binding is a collaboration between Natural Atlas and Mapbox. A Gentle Introduction to GDAL Part 4: Working with Satellite Data. The git merge and git pull commands can be passed an -s (strategy) option. The picture below is a composite of the R,G,B channels. 13 Downloads ↓ Geometric objects, predicates, and operations Manipulation and analysis of geometric objects in the Cartesian plane. Rasterio reads and writes geospatial raster datasets. examples" package. If the location is a directory, you need to supply a file name. Any numpy-like objects that support NEP-18. The Raster Calculator tool can be used in ModelBuilder, but keep the following points in mind: The syntax of the expression determines how variables are to be specified. For example, rio-mbtiles provides a command rio mbtiles to export a raster to an MBTiles file. This project is licensed under the terms of the MIT License. tif; gdal_contour srtm. get function, it is limited to just working with GeoTiffs. I need to write an impossible view and I achieve to retrieve the correct list of nodes in two different views and now I need to merge the results in one single table. The program gdal2tiles. We publish a new tag per merge into master, which is tagged with the first 7 characters of the commit hash. They are extracted from open source Python projects. The following are code examples for showing how to use shapely. SDD) are used and detailed. If you are trying to transition from a conventional, plan-based approach to project management, you may find previously successful teams do not quite have the right balance of experiences. API Reference¶. There are a few code breaking changes in 2. When should you use GeoPandas? For exploratory data analysis, including in Jupyter notebooks. Rasterio employs GDAL under the hood for file I/O and raster formatting. fio output shows two bandwidth numbers at two places (for both read and write). Here’s an example program that extracts the GeoJSON shapes of a raster’s valid data footprint. The next step is to select, merge and download the different satellite images in a geoTIFF format. I have tried this example. Merge raster in GIS Software can be tricky. When the time comes to write the file I keep getting this error:. Merge is recursive, but is there non-recursive Merge? I don't think so. DATUM=name: Name of the ECW datum string to use. Get vector information. How to get abbreviations of the bibliography into the list of shorthands? will be possible in the future" and this appears to be another example in biblatex 2. GeoPandas is an open source project to make working with geospatial data in python easier. Merge raster in GIS Software can be tricky. I've created all the examples in this post in a live Displayr document, so you can look at the code and play around with it yourself. Our approach is particularly suited to particles that interact with data defined on a (possibly adaptive) block-structured hierarchy of meshes. ogrinfo -al -so input. Beyond compare does the "one-stop shop does it all" approach, while unison focuses on handling tree traversal, keeping state and propagating changes, covering Beyond Compare features by delegating things like diff, 3-way merge, etc. merge import merge from rasterio. qtvirtualkeyboard5-examples/bionic 5. But this is slow because it will do copy operation even the destination file doesn't exist. Second Lecture on Regular Expressions. As you might remember from our earlier lessons, combining data from different tables based on common key attribute can be done easily in Pandas/Geopandas using. merge tool and using the bounds from a geojson file to crop the image. Description/Readme. save("merged"). A two-way divided highway is just that, a two-way road, with a divider (barriers or median) between the directional travel lanes; NOT two one way roads. For example, Fedora uses the RPM packaging format, while Debian uses the. g 128) will reduce the number of byte transfered and minimized the useless bytes transfered. It is very useful for merging a single file and also for merging set of files as well. Quite often you need to merge multiple raster files together and create a raster mosaic. Command line executable files Executable Meaning BCompare. Cheat sheet for GDAL/OGR command-line geodata tools. However, with the new geopyspark. Acknowledgements The main example and many of the ideas in this post are from LITTLE MISS DATA, although I've reworked the code quite significantly. Python strongly encourages community involvement in improving the software. raw download clone embed report print text 15. # tiny_spacenet. examples" package. Perform a merge where the local node is the node found above (whichever is on the local branch) and the remote node is the "parent" of the corresponding node. open(' example-total. Summary: This script conducts exploratory timeseries analysis on the Fractional Cover dataset (stored in the Geoscience Australia DataCube) in order to help detect, but not attribute, change in vegetation coverage from seasonal grasss to perennial shrubs and trees. I have the CRC handbook but it only has data about some organic solvents in. Any info on how to fix it?. The great example of this alleged identity of all human religions is the alleged spiritual identity of Buddhism and Christianity. It doesn't matter what tool you use. 0) comes bundled, so node-gdal will work straight out of the box. Hi everyone! [attention: long text ahead] In recent weeks I have been working on moving map rendering into background worker threads and all related infrastructure. txt) or read online for free. Comparing Map Algebra Implementations for Python: Rasterio and ArcPy Mary Marek-Spartz Department of Resource Analysis, Saint Mary’s University of Minnesota, Minneapolis, MN 55404 Keywords: Map Algebra, ArcPy, Rasterio, Python, Raster Processing, Geographic Information Systems (GIS), Free and Open Source Software (FOSS), Environmental. ogrinfo -al -so input. Find file Copy path. frames and the names of the columns containing the unique ID that we will merge the data on. The "merge" command is used to integrate changes from another branch. To use the recursive power of the jsonb_merge_recurse function, better merge two json column each containing multi-leveled json documents. It isn't possible, for example, to select a font size and style, rasterize the type, apply a blur (or similar pixel based) filter and then change one's mind and go back and simply alter the font size and style. , a temperature or pressure anomaly field measured or modeled on a regular grid, 240 columns by 180 rows. can you give examples? because maybe the problem can easly be fixed with weight correction $\endgroup$ – Diogo Valadares Sep 27 '18 at 22:55 $\begingroup$ I don't think 64 models never actually connected the joints which is what I am trying to rig for unity3d. The paragraph I believe you are referring to is only referring to one-way streets, not two-way divided highways. The modified script below takes this into account and sets the correct x,y offsets for the clipped geotiff. uint8, count = 1, compress = ' lzw ') with rasterio. For slower operations we're closer to 10x. Rasterio is designed to make working with geospatial raster data more productive and more fun. This enables reading and writing files with more dimensions than just x, y, layer, and time. In his EuroSciPy talk Joris compares the performance of GeoPandas (both before and after Cython) with PostGIS, the standard geospatial plugin for the popular PostgreSQL database (original notebook with the comparison). 0 and I can just switch between both versions simply by changing the environment. \$\endgroup\$ – John Neuhaus May 19 '16 at 17:59. gdaldem hillshade srtm. Merge two data frames by common columns or row names, or do other versions of database join operations. There are 8 elements in the array. The Project Raster tool transforms x-, y-, ProjectRaster example 2 (stand-alone script) This is a Python script sample for the ProjectRaster tool. 2 Mac users, 2. >>>Python Needs You. Python Introduction Tutorial Pdf For Beginners Windows PDF (US-Letter paper size), Download (ca. I want to make a movie from the color images with frame rate as per choice. The modified script below takes this into account and sets the correct x,y offsets for the clipped geotiff. read_band(3) # Set every non-background pixel to 0 and then mask out the # white background. LeaseWeb public mirror archive. Calligrams was a constant attempt to merge poetry and visual. The Raster Calculator tool can be used in ModelBuilder, but keep the following points in mind: The syntax of the expression determines how variables are to be specified. For highly compact and readable code. 7 ----- * new output routines in map_slices. How can I merge it? If the views_1 give me nodes: [2, 52, 68, 41] and the views_2 give me nodes: [2, 66, 88]. RasterIO is a list with zero or more of the following named arguments: nXOff, nYOff (both 1-based: the first row/col has offset value 1), nXSize, nYSize, nBufXSize, nBufYSize, bands. QGIS Multi-threaded Rendering. It doesn't matter what tool you use. 04 running on a 4 GB RAM laptop with an Intel DUO CPU at 2GHz) and I wanted to compare the performance of the two algori. open(' example-total. 13-10-07 Update: Please see the Vincent docs for updated map plotting syntax. Description/Readme. The Merge Rasters function represents a grouped or merged collection of rasters. GDAL is a translator library for raster and vector geospatial data formats that is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. conf which contains information on domain name servers, the servers which help our computers translate domain names, like example. Some questions about collaborating on software projects for CDI to ponder, discuss, and share at a future Monthly Meeting:. Follow the instructions here. Merge solutions facilitate the sharing of images to create a more effective and efficient electronic healthcare experience for patients and physicians. 2 Mac users, 2. Some people believe that first past the post is the problem which leads to two party systems, but I believe it is the median voter theorem which is more applicable. I then add up both to find the highest possible score $=25$. Rasterio maint-1. Or you might provide a code snipped that is not properly formatted and then an example of what you would fix (before and after code blocks). 最近在看GDAL,原来想尝试将图像用GDAL读入数组,再进行重采样,现在发现ReadRaster(100,100,10,10,10,10)表示从像素坐标(100,100)读10*10的大小,再存入10 论坛. Your can control the linker paths using the LD_LIBRARY_PATH environment variable but only before the process is started. The last command is a ‘rio’ command, rio is the CLI for the rasterio library. The project began as part of National Geographic Magazine's involvement with the Year of the Bird. Rasterio: access to geospatial raster data¶ Geographic information systems use GeoTIFF and other formats to organize and store gridded raster datasets such as satellite imagery and terrain models. drivers(): with rasterio. examples" package. >>>Python Needs You. The previous behavior was to decode them only if they had specific time attributes, now these attributes are copied automatically from the corresponding time coordinate. merge()-function. 10 examples of paste command usage in Linux In this article, we will see how to use the paste command with some examples. The example creates a ‘VRT’ file, which is merely a ASCII text file describing the transformation and other image metadata. For example the first 10 lines are sequence file from the same animal and specific tissue (MC9_FREN). Skip to content. tgz 15-Aug-2019 06:50 845483 2048-cli-0. How to get abbreviations of the bibliography into the list of shorthands? will be possible in the future" and this appears to be another example in biblatex 2. For examples sake lets name them like so: Domain 1: Cat Domain 2: Dogs. Intro to Spatial Data Analysis in Python - FOSS4G NA 2015 - Free download as PDF File (. It is useful when you have multiple rasters that you want treated as a single item, for example, to calculate the same statistics for all, or to treat as one image when color balancing (thereby, not color balancing each image separately). We publish a new tag per merge into master, which is tagged with the first 7 characters of the commit hash. The various Band. It doesn't matter what tool you use. Args: merge_thresh: If predicted boxes have an IOA (intersection over area) greater than merge_thresh, then they are merged into a single box during postprocessing. DATUM=name: Name of the ECW datum string to use. This might mean that you literally write the documentation text that you want to add to the issue. Persistent demo environment to be set up on Raijin with major changes going in - accessible to NCI/CSIRO and GA - only updated when we are going to do a release i. read_file ( geopandas. Some Microsoft Office products (e. Breaking changes¶. Rasterio è progettato per rendere più produttivo e divertente il lavoro con dati raster geospaziali. I have 2 domains that I need to merge. A new post about maps (with improved examples!) can be found here. set_options (**kwargs) Set options for xarray in a controlled context. Explicitly combine an N-dimensional grid of datasets into one by using a succession of concat and merge operations along each dimension of the grid. Building on the algorithms I developed for mini-grids, I decided to move up a level of abstraction and look at the country- rather than village-level. Here are the steps to follow to clip raster using this method. merge tool and using the bounds from a geojson file to crop the image. merge (datasets, bounds=None, res=None, nodata=None, precision=7, indexes=None, method='first') ¶ Copy valid pixels from input files to an output file. tgz 26-Oct-2019 10:40 31972110 0ad-data-0. If you edit the PDF version of it and delete a paragraph on the first page the text from pages 2 and 3 won't automatically flow onto the first page. ipynb notebook * go over new merge_modis. update(dtype = rasterio. Rasterio is designed to make working with geospatial raster data more productive and more fun. It is useful when you have multiple rasters that you want treated as a single item, for example, to calculate the same statistics for all, or to treat as one image when color balancing (thereby, not color balancing each image separately). 32 ], [ - 99. The Example # RasterClipper. # Merge function returns a single mosaic array and the transformation info In [16]: mosaic , out_trans = merge ( src_files_to_mosaic ). path (pathlib. 2010-06-24. Word 2016 and Outlook 2016) have a special paste feature called Merge Formatting which retains certain formatting (like lists, hyperlinks, bold, underlined, and italicized text) but uses the destination formatting for font, line spacing, and text size. Rasterio aims to make GIS data more accessible to Python programmers and helps GIS analysts learn important Python standards. In the first example, we use the Raster Clip tool in the Data Management toolbox. qtvirtualkeyboard5-examples/bionic 5. It is a hard work to keep everything up-to-date, so don’t hesitate to let us know (see Get in touch) if something’s missing, or help us (see Contributing to OGGM) to write a better documentation!. The recommended way to store xarray data structures is netCDF, which is a binary file format for self-described datasets that originated in the geosciences. I'm new to rasterio. rasterio module, it is now possible to create RasterLayer s from different file types. If you don’t want to use any Snappy Functionality, then Rasterio is a good Python lib for it. As you’re no doubt aware, Git and Mercurial are great at re-integrating divergent lines of development through merging. Our First Few Exercises. To merge in a feature branch it should include any relevant tests. I want to make a movie from the color images with frame rate as per choice. For slower operations we're closer to 10x. GDAL_HTTP_MERGE_CONSECUTIVE_RANGES=YES GDAL_HTTP_MULTIPLEX=YES GDAL_HTTP_VERSION=2 Overview levels. I want to produce a self-organizing map for this data to see how my data is clustered. Agile teams typically need a critical mass of highly skilled people in order to be a success. As you might remember from our earlier lessons, combining data from different tables based on common key attribute can be done easily in Pandas/Geopandas using. The cylinder case that is in the question is just an example and I originally wanted to use this to reduce the quality of a complicated model by merging the edge loops in it. At the same time, in languages with grammatical gender, there are usually some words referring to people, yet with a grammatical gender that does not "match" the person's gender: "Mädchen" (girl, neuter in German) and "Kind" (child, still neuter) are well-known examples, but you also have simple concepts, like "vittima" (victim, feminine) in. The Project Raster tool transforms x-, y-, ProjectRaster example 2 (stand-alone script) This is a Python script sample for the ProjectRaster tool. gdal_http_merge_consecutive_ranges=yes gdal_http_multiplex=yes gdal_http_version=2 Overview levels By default rio cogeo will calculate the optimal overview level based on dataset size and internal tile size (overview should not be smaller than internal tile size (e. • Now with more awesome than ever. Rasterio legge e scrive insiemi di dati raster geospaziali. RasterIO is a list with zero or more of the following named arguments: nXOff, nYOff (both 1-based: the first row/col has offset value 1), nXSize, nYSize, nBufXSize, nBufYSize, bands. Rasterio reads and writes geospatial raster datasets - mapbox/rasterio Merge branch 'maint-1. All files must have the same number of bands, data type, and coordinate reference system. , a temperature or pressure anomaly field measured or modeled on a regular grid, 240 columns by 180 rows. 8 added a “merge_minify_refresh_done” hook that fires when JS or CSS has changed. Because GDAL can merge range request, using small internal tiles (e. merge_strategy - for pixels with values in both rasters. We publish a new tag per merge into master, which is tagged with the first 7 characters of the commit hash. shp layer-name. However, sometimes it is useful to join two tables together based on the index of those DataFrames. 13-10-07 Update: Please see the Vincent docs for updated map plotting syntax. While placing information about domain name system (DNS) servers into a text file is straight forward, it does not. Persistent demo environment to be set up on Raijin with major changes going in - accessible to NCI/CSIRO and GA - only updated when we are going to do a release i. In this example, we are using the Natural Earth data. To merge in a feature branch it should include any relevant tests. sparse: for sparse arrays. They are extracted from open source Python projects. You can always inspect the GDAL utilities for how they do it. WriteRaster, Dataset. About Debian; Getting Debian; Support; Developers' Corner. gdaldem hillshade srtm. It is the process of combining a list of data with a template. clr format, with 58 lines. On Linux it seems to be possible to read them. Click here to view the code and tables discussed in this post. -- Wes In anticipation of integrating NumPy's shiny new datetime64 dtype into pandas, I set about writing some faster alignment and merging functions for ordered time series data indexed …. It is useful when you have multiple rasters that you want treated as a single item, for example, to calculate the same statistics for all, or to treat as one image when color balancing (thereby, not color balancing each image separately). read_file ( geopandas. Persistent demo environment to be set up on Raijin with major changes going in - accessible to NCI/CSIRO and GA - only updated when we are going to do a release i. For combining datasets or data arrays along a dimension, see concatenate. The real oldie and goody is merge(), which with "real" Con was removed at 10. If applying patch is not possible, replace MERGE with UPDATE and INSERT. Can you help me optimize the process and avoid some potential pitfalls? Can you help me optimize the process and avoid some potential pitfalls?. 8 MB) HTML Help (. I am trying to merge 4 sentinel 2 raster images using the rasterio. gz to MC9_FREN_R2. and re-size image to merge with other data. Lightroom is really not the best option for this, but it is possible. Of course if you have small rasters (in data size) then it is easy. rasterio_params: Additional parameters to be passed to rasterio. The Scientist's Challenge for November comes from Jeremiah Lant, Hydrologist at the Kentucky Water Science Center. All you need is a Java Runtime properly installed, and the WWJ SDK unzipped to the place of your choice. General Question I need to merge 57,000 GeoTIFF files into one. add_raster (other, merge_strategy, resampling) ¶ Return merge of 2 rasters, in geography of the first one. Three bands are read from an image and averaged to produce something like a panchromatic band. 最近在看GDAL,原来想尝试将图像用GDAL读入数组,再进行重采样,现在发现ReadRaster(100,100,10,10,10,10)表示从像素坐标(100,100)读10*10的大小,再存入10 论坛. py - Clip and mask an input raster using a polygon shapefile - apply_mask. This is considered to be the main reason that anonymous posting is permitted. – Alex Chamberlain Jun 13 '12 at 15:45 One reason you might want to is to run a classic game that has not been ported to Linux, but which the Pi has enough processing power to run. ini file EsriTrainingSvc does not appear correctly in ArcGIS for Desktop 10. merge_strategy - for pixels with values in both rasters. i beg to differ - 20-ish years from now in 2031, when no one remembers the details of the whacky Nikon D70 raw specification (I don't know if it's really whacky, it's just an example), and no software can decode your raw file, you're in trouble. rand ( 2 , 2 , 3 ) In [33]: lon = [[ - 99. Rasterio's command line interface (CLI) is a program named "rio" 1. rio_plugins' entry point in your setup. tgz 15-Apr. The Project Raster tool transforms x-, y-, ProjectRaster example 2 (stand-alone script) This is a Python script sample for the ProjectRaster tool. with a system() call, or maybe a CreateProcess() call if you're on Windows). I need to write an impossible view and I achieve to retrieve the correct list of nodes in two different views and now I need to merge the results in one single table. The modified script below takes this into account and sets the correct x,y offsets for the clipped geotiff. Domain 1 is a single homed domain, which makes everything more fun. GDAL is a translator library for raster and vector geospatial data formats that is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: