Rfast2: pooled.colVars – R documentation

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pooled.colVars

Column-wise pooled variances across groups

Column-wise pooled variances across groups.

pooled.colVars(x, ina, std = FALSE)

`x`	A matrix with the data.
`ina`	A numerical vector specifying the groups. If you have numerical values, do not put zeros, but 1, 2, 3 and so on.
`std`	A boolean variable specyfying whether you want the variances (FALSE) or the standard deviations (TRUE) of each column.

This function cacluates the pooled variance (or standard deviation) for a range of groups for each column.

A vector with the pooled column variances or standard deviations.

Michail Tsagris

R implementation and documentation: Michail Tsagris <mtsagris@uoc.gr> and Manos Papadakis <papadakm95@gmail.com>.

pooled.colVars( as.matrix(iris[, 1:4]), as.numeric(iris[, 5]) )

A Collection of Efficient and Extremely Fast R Functions II

v0.0.9

GPL (>= 2.0)

Authors

Manos Papadakis, Michail Tsagris, Stefanos Fafalios and Marios Dimitriadis.

Initial release

2021-03-21