getAveragingTransform: get function that calculates new feature: average of...

In jukujala/R-data-pipe: R Machine Learning Data Pipeline

Description

get function that calculates new feature: average of <avg_col> by group

Usage

getAveragingTransform(group_cols, avg_col, out_col, fit_dt, n_threshold = 500)

Arguments

group_cols:	vector of column names to group by the average calculation
avg_col:	column to average
output_col:	column name to output the new feature
fit_dt:	data.table with columns in group_cols and avg_col
n_threshold:	calculate average only when group size exceed this

Value

list(col, fun) where fun is the transformation function

jukujala/R-data-pipe documentation built on Jan. 13, 2020, 11:28 a.m.