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  • Existence of matrix to compress
  • Managing errors
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Stored procedures
Compresses the memory footprint occupied by a matrix.
Remark: The compression is required when you handle a large matrix onto which several calculations have been made. If this matrix contains several null columns and/or rows, the compression is used to significantly reduce the memory footprint of matrix.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 19 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 19
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Versions 23 and later
Android Widget This function is now available in Android widget mode.
Android This function is now available for Android applications.
Java This function is now available for Java applications.
New in version 23
Android Widget This function is now available in Android widget mode.
Android This function is now available for Android applications.
Java This function is now available for Java applications.
Android Widget This function is now available in Android widget mode.
Android This function is now available for Android applications.
Java This function is now available for Java applications.
Versions 25 and later
WEBDEV - Browser code This function is now available in browser code.
New in version 25
WEBDEV - Browser code This function is now available in browser code.
WEBDEV - Browser code This function is now available in browser code.
Example
// Compress a matrix
MatStack("MyMatrix")
Syntax
MatStack(<Matrix>)
<Matrix>: Character string
Name of matrix to compress, defined by MatCreate.
Remarks

Existence of matrix to compress

The matrix existence is not checked. To check the matrix existence, use MatExist.

Managing errors

Caution: MatStack returns no result. To find out whether errors have been generated by the compression, use MatError on this matrix. To get the details of the error, use ErrorInfo with the errMessage constant.
Business / UI classification: Neutral code
Component: wd270mat.dll
See also
Minimum version required
  • Version 9
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