colCounts: Counts the number of features

In rformassspectrometry/MsCoreUtils: Core Utils for Mass Spectrometry Data

Counts the number of features

Description

Returns the number of non-NA features in a features by sample matrix.

Usage

colCounts(x, ...)

Arguments

x	A matrix of mode numeric.
...	Currently ignored.

Value

A numeric vector of length identical to ncol(x).

Author(s)

Laurent Gatto

See Also

Other Quantitative feature aggregation: aggregate(), medianPolish(), robustSummary()

Examples

m <- matrix(c(1, NA, 2, 3, NA, NA, 4, 5, 6),
            nrow = 3)
colCounts(m)
m <- matrix(rnorm(30), nrow = 3)
colCounts(m)

rformassspectrometry/MsCoreUtils documentation built on April 26, 2024, 1:09 a.m.