som (version 0.3-2)

filtering: Filter data before feeding som algorithm for gene expression data

Description

Filtering data by certain floor, ceiling, max/min ratio, and max - min difference.

Usage

filtering(x, lt=20, ut=16000, mmr=3, mmd=200)

Arguments

x

a data frame or matrix of input data.

lt

floor value replaces those less than it with the value

ut

ceiling value replaced those greater than it with the value

mmr

the max/min ratio, rows with max/min < mmr will be removed

mmd

the max - min difference, rows with (max - min) < mmd will be removed

Value

• An dataframe or matrix after the filtering

See Also

normalize.