vec_fill_missing: Fill in missing values with the previous or following value

In vctrs: Vector Helpers

Fill in missing values with the previous or following value

Description

vec_fill_missing() fills gaps of missing values with the previous or following non-missing value.

Usage

vec_fill_missing(
  x,
  direction = c("down", "up", "downup", "updown"),
  max_fill = NULL
)

Arguments

x	A vector
direction	Direction in which to fill missing values. Must be either "down", "up", "downup", or "updown".
max_fill	A single positive integer specifying the maximum number of sequential missing values that will be filled. If NULL, there is no limit.

Examples

x <- c(NA, NA, 1, NA, NA, NA, 3, NA, NA)

# Filling down replaces missing values with the previous non-missing value
vec_fill_missing(x, direction = "down")

# To also fill leading missing values, use `"downup"`
vec_fill_missing(x, direction = "downup")

# Limit the number of sequential missing values to fill with `max_fill`
vec_fill_missing(x, max_fill = 1)

# Data frames are filled rowwise. Rows are only considered missing
# if all elements of that row are missing.
y <- c(1, NA, 2, NA, NA, 3, 4, NA, 5)
df <- data_frame(x = x, y = y)
df

vec_fill_missing(df)

vctrs documentation built on May 29, 2024, 11:39 a.m.