fill_by_function: Fill missing values by a function of the nonmissings

In EdwinTh/padr: Quickly Get Datetime Data Ready for Analysis

Fill missing values by a function of the nonmissings

Description

For each specified column in x replace the missing values by a function of the nonmissing values.

Usage

fill_by_function(x, ..., fun = mean)

Arguments

x	A data frame.
...	The unquoted column names of the variables that should be filled.
fun	The function to apply on the nonmissing values.

Value

x with the altered columns.

Examples

library(dplyr) # for the pipe operator
x <- seq(as.Date('2016-01-01'), by = 'day', length.out = 366)
x <- x[sample(1:366, 200)] %>% sort
x_df <- data_frame(x  = x,
                   y1 = runif(200, 10, 20) %>% round,
                   y2 = runif(200, 1, 50) %>% round)
x_df %>% pad %>% fill_by_function(y1, y2)
x_df %>% pad %>% fill_by_function(y1, y2, fun = median)

EdwinTh/padr documentation built on Nov. 15, 2023, 7:15 a.m.