R/README.md

In jmarca/grid_data: Process CalVAD 4km grid data

some notes

Upon coming back to this code after a month or so away, I was confused by some things and am writing them down here for the next time I step away.

First, the CalVAD imputed grid AADT fraction data is stored in the database

grid.couch.db <- 'carb%2fgrid%2fstate4k'

This database is used in the functions defined in the file fetchFiles.R. This db is populated using the code in the lib subdirectory, the copy to couch stuff.

This is a different database than the HPMS output database. I am not exactly sure why, but I don't want to argue at the moment. The R script triggered by getallthegrids.R will estimate AADT fractions for each hour, each grid cell that has HPMS data, and will store those estimates in the database

hpms.grid.couch.db <- 'carb%2Fgrid%2Fstate4k%2fhpms'

This then is the output database. Also, there is code that tries to prevent writing the same thing twice, as before I predict and save to the db, I first check whether or not the first hour in the month has any data in it for that cell (is that doc there or not).

All of this is triggered by the node.js script in ../lib/trigger_R_gridwork.js

jmarca/grid_data documentation built on Sept. 27, 2020, 11:33 a.m.