approx_fun_constant: approx_fun_constant

In JGCRI/gcamdata: Build the GCAM Input Datasets

approx_fun_constant

Description

approx (interpolation) for use in a dplyr pipeline.

Usage

approx_fun_constant(year, value, rule = 1)

Arguments

year	Numeric year, in a melted tibble or data frame
value	Numeric value to interpolate
rule	Rule to use; see approx and details

Details

This is a slight change to approx_fun that can be used if there is only one value, not two to interpolate between.

This function will apply the one value you do have to all other years in a grouping.

Value

Interpolated values.

Examples

df <- data.frame(year = 1:5, value = c(1, 2, NA, 4, 5))
approx_fun_constant(df$year, df$value, rule = 2)

JGCRI/gcamdata documentation built on March 21, 2023, 2:19 a.m.