narm: Remove 'NA's

In AkselA/R-ymse: Ymse (Various)

Description

Remove NAs from vector or matrix

Usage

narm(x, ...)

## Default S3 method:
narm(x, ...)

## S3 method for class 'matrix'
narm(x, margin = 1, keep = c("any", "complete"), ...)

## S3 method for class 'data.frame'
narm(x, margin = 1, keep = c("any", "complete"),
  ...)

Arguments

x	a vector or matrix
...	further arguments passed to methods
margin	if x is matrix, which margin to remove NAs by
keep	if x is matrix, keep rows/columns with any non-NA values, or keep only complete rows/columns.

Value

If x is a matrix and margin is 1 or 2, a matrix is returned. Else a vector.

Examples

m1 <- matrix(c(10, 20, 30, 43,
               10, NA, 32, 50,
               NA, NA, NA, NA,
               13, 22, 70, 81,
               NA, 29, NA, 41), 5, byrow=TRUE,
               dimnames=list(letters[1:5], LETTERS[1:4]))

narm(m1) 
matplot(narm(apply(m1, 2, sort, na.last=TRUE)), type="l")

m1[complete.cases(m1),]
narm(m1, 1, "c") #same
narm(m1, 2, "complete") #no complete columns

m1.df <- as.data.frame(t(m1))
narm(m1.df, 2, "complete")

AkselA/R-ymse documentation built on March 21, 2020, 9:52 a.m.