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# Sampling Raster Data using Points or Polygons (QGIS3) — QGIS Tutorials and Tips
[http://www.qgistutorials.com/en/docs/3/sampling_raster_data.html](http://www.qgistutorials.com/en/docs/3/sampling_…
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@AntJam-Howell I'm following the code in lab 04, but currently I am stuck at this error.
"Error in (function (cond) :
error in evaluating the argument 'x' in selecting a method for function '…
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Hi all,
Someone suggested it would be great to have a sort "quick facts" list (i.e. simple synthesized bottom-line takeaways) from each data-driven map we add to the site. For example, on the rent-bu…
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A graduate student in Education Policy Studies is analyzing school composition data for multiple metropolitan areas in the United States. They want to create demographic maps and maps of school compos…
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The methodology states 2010 Census data is used to fill ethnicity variables. But the fetch_acs.rb program has code to formulate ethnicity variables using ACS 5 year tract data.
I suggest we use the A…
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I discovered the reason why the numbers were not matching up when I was making the maps and trips visualizing the suppressed trips. I was using the average weekday trips between community areas which …
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**Title:** Housing Individual Assistance Program
**ID:** 92af1c87-ab30-4ff6-98f3-c56c7ac7045d
**Description:** There is no description available.
**Created:** 11 / 29 / 2016
**Updated:** 11 / 29 / 201…
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Hi i want to combine 2 mbtiles with different zoom scope
for example:
At the end We have a 2 layer in one mbtiles
one of them has a maxzoom=20 and minzoom=13 .
And another one has maxzoom=12 and min…
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Hi, thank you for sharing the interesting project! I am also doing some studies using dockless data. However, the trip data the Austin government provide now doesn't have cell id anymore, only the cen…