exprprofrange
Calculate range of gene expression profiles
Syntax
Range = exprprofrange(Data)
[Range, LogRange] = exprprofrange(Data)
... = exprprofrange(Data,
'ShowHist', ShowHistValue)
Arguments
Data | DataMatrix object or numeric matrix of expression values, where each row corresponds to a gene. |
ShowHistValue | Controls the display of a histogram with range data. Default is:
|
Description
Range = exprprofrange(Data)Data,
a DataMatrix object or
numeric matrix of expression values, where each row corresponds to
a gene.
[ returns
the log range, that is, Range, LogRange] = exprprofrange(Data)log(max(prof))- log(min(prof)),
of each expression profile. If you do not specify output arguments, exprprofrange displays
a histogram bar plot of the range.
... = exprprofrange( controls
the display of a histogram with range data. Choices for Data,
'ShowHist', ShowHistValue)ShowHistValue are true or false.
Examples
Calculate range of gene expression profiles
Load microarray data containing gene expression levels of Saccharomyces cerevisiae (yeast).
load yeastdataThis MAT-file includes three variables, which are added to the MATLAB® workspace:
yeastvalues- A matrix of gene expression datagenes - A cell array of GenBank® accession numbers for labeling the rows in yeastvalues
times - A vector of time values for labeling the columns in yeastvalues
Calculate the range of expression profiles for yeast data as gene expression changes during the metabolic shift from fermentation to respiration. And display a histogram of the data.
range = exprprofrange(yeastvalues,'ShowHist',true);