Linearly interpolate gaps in a data frame

Fills missing values (NA) in every column of a data frame using linear interpolation, up to a maximum of gap consecutive missing observations. Gaps longer than gap are left as NA.

Usage

filllinear(DF, gap)

Arguments

DF

A data frame or matrix with numeric columns.

gap

Integer. Maximum number of consecutive NAs to fill.

Value

The data frame DF with short gaps linearly interpolated.

Examples

filllinear(data.frame(x = c(1, NA, 3), y = c(2, NA, 4)), gap = 1)
#>   x y
#> 1 1 2
#> 2 2 3
#> 3 3 4