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Ashirwad Barnwal ashirwad

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ashirwad / sf_points_to_gpx.R
Created December 30, 2024 21:27
[Save sf points object to a GPX file] #sf
sf::write_sf(sf_points_obj, "test.gpx", dataset_options = "GPX_USE_EXTENSIONS=YES")
@ashirwad
ashirwad / arrange_custom_order.R
Created November 20, 2024 21:32
[Arrange rows in a custom order] #dplyr
mtcars |> dplyr::arrange(match(cyl, c(6, 8, 4)))
@ashirwad
ashirwad / sf_points_to_csv.R
Last active December 30, 2024 21:48
[Save sf points object to a CSV file] #sf
sf::write_sf(sf_points_obj, "test.csv", layer_options = "GEOMETRY=AS_XY")
@ashirwad
ashirwad / gsutil-multi-file-move-or-copy.md
Created June 10, 2024 20:35
Copy or move multiple Google Cloud Storage files using gsutil

Move multiple files

gsutil ls gs://bucket-name/old-folder/file-naming-pattern | gsutil -m mv -I gs://bucket-name/new-folder/

Copy multiple files

gsutil ls gs://bucket-name/old-folder/file-naming-pattern | gsutil -m cp -I gs://bucket-name/new-folder/
@ashirwad
ashirwad / california-migration-flowmap.md
Last active January 27, 2024 09:10
2020 California net migration visualization using a flow map

I once had a discussion with a colleague and he was mentioning about Californians migrating to different states in the US. This led me to think about how I could visualize California migration. Through Google search, I stumbled upon this artice from USAFacts that presents facts on 2020 California migration using data from the IRS based on filed tax returns. Additionally, I also came across an online tool called FlowmapBlue that allows users to create beautiful flow maps to visualize movements happening across pairs of origin and destination locations.

I used the data from USAFacts, wrangled it using R to create the Google Sheet that FlowmapBlue expects, and published it as a flow map that can be accessed here. As my colleague rightly pointed out, it seems Californians are avoiding Midwest due to the cold