| filtering {som} | R Documentation |
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
Author(s)
Jun Yan <jyan@stat.uiowa.edu>
See Also
[Package som version 0.3-5.1 Index]