gprread

Read microarray data from GenePix Results (GPR) file

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Syntax

GPRData = gprread(File)
gprread(..., 'PropertyName', PropertyValue,...)
gprread(..., 'CleanColNames', CleanColNamesValue)

Arguments

File

GenePix® Results (GPR) formatted file. Enter a character vector or string specifying a file name, or a path and file name.

CleanColNamesValue

Controls the creation of column names that can be used as variable names.

Description

GPRData = gprread(File) reads GenePix results data from File and creates a MATLAB® structure (GPRData).

gprread(..., 'PropertyName', PropertyValue,...) defines optional properties using property name/value pairs.

gprread(..., 'CleanColNames', CleanColNamesValue) controls the creation of column names that can be used as variable names. A GPR file may contain column names with spaces and some characters that the MATLAB software cannot use in MATLAB variable names. If CleanColNamesValue is true, gprread returns names in the field ColumnNames that are valid MATLAB variable names and names that you can use in functions. By default, CleanColNamesValue is false and the field ColumnNames may contain characters that are invalid for MATLAB variable names.

The field Indices of the structure contains indices that can be used for plotting heat maps of the data.

The function supports versions 3, 4, and 5 of the GenePix Results Format.

Examples

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Open Live Script

This example shows how to read and display data from a GenePix® result (GPR) file.

Read in a sample GPR file.

gprStruct = gprread('mouse_a1pd.gpr')
gprStruct = struct with fields:
         Header: [1×1 struct]
           Data: [9504×38 double]
         Blocks: [9504×1 double]
        Columns: [9504×1 double]
           Rows: [9504×1 double]
          Names: {9504×1 cell}
            IDs: {9504×1 cell}
    ColumnNames: {38×1 cell}
        Indices: [132×72 double]
          Shape: [1×1 struct]

Plot the median foreground intensity for the 635 nm channel.

maimage(gprStruct,'F635 Median')

Figure contains an axes object. The hidden axes object with title F635 Median contains 5 objects of type image, line.

Version History

Introduced before R2006a

See Also

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