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Group a vector of variable codes by shared native grid

Source: R/wapor_res_key.R
wapor_group_by_res.Rd

Splits a character vector of variable codes into named groups where all members share the same resolution key (and therefore the same native pixel grid). Only groups with more than one variable benefit from batched extraction; single-variable groups are left as-is.

Usage

wapor_group_by_res(variables)

Arguments

variables

Character vector of variable codes.

Value

A named list of character vectors, one element per unique resolution key. Names are the resolution keys.

Examples

wapor_group_by_res(c("L1-AETI-D", "L1-NPP-D", "L1-PCP-D", "L2-AETI-D"))
#> $L1_300m
#> [1] "L1-AETI-D" "L1-NPP-D" 
#> 
#> $L1_5000m
#> [1] "L1-PCP-D"
#> 
#> $L2_100m
#> [1] "L2-AETI-D"
#> 
# $L1_300m   -> c("L1-AETI-D", "L1-NPP-D")
# $L1_5000m  -> "L1-PCP-D"
# $L2_100m   -> "L2-AETI-D"