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Run R code in Hive
Extending and generalizing the ideas from this blog post
The
library(RHive) testfunc = function(x) { data.frame(station = 1L, n_total = 2L, slope = 3.14) } write_udaf_scripts(f = testfunc , cluster_by = "station" , input_table = "pems" , input_cols = c("station", "flow2", "occ2") , input_classes = c("integer", "integer", "numeric", "character") , output_table = "fundamental_diagram" , output_cols = c("station", "n_total", "slope") , output_classes = c("integer", "integer", "numeric") , overwrite_script = TRUE , overwrite_table = TRUE , try = TRUE )
Some ideas talking with the code review group:
input_table data data_in SELECT_FROM select_from sql_in = sql_builder(SELECT = c("col_a", "col_b")...)
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