R: Form row means conditional on number of non-missing

conditional_rowMeans {MESS} | R Documentation

## Form row means conditional on number of non-missing

### Description

Form row means for multiple vectors, numeric arrays (or data frames) conditional on the number of non-missing observations. NA is returned unless a minimum number of observations is observed.

### Usage

    conditional_rowMeans(..., minobs = 1L)

### Arguments

`...` | a series of numeric vectors, arrays, or data frames that have can be combined with cbind
`minobs` | an integer stating the minimum number of non-NA observations necessary to compute the row mean. Defaults to 1.

### Value

A numeric vector containing the row sums or NA if not enough non-NA observations are present

### Examples

    conditional_rowMeans(1:5, c(1:4, NA), c(1:3, NA, NA))
    conditional_rowMeans(1:5, c(1:4, NA), c(1:3, NA, NA), minobs=0)
    conditional_rowMeans(1:5, c(1:4, NA), c(1:3, NA, NA), minobs=2)

[Package MESS version 0.5.6 Index]