GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
MAT_VARWRITEAPPEND(3) FreeBSD Library Functions Manual MAT_VARWRITEAPPEND(3)

Mat_VarWriteAppend
Writes/appends a MATLAB variable to an HDF5 format MATLAB MAT file.

#include <matio.h>
int
Mat_VarWriteAppend(mat_t *matfp, matvar_t *matvar, enum matio_compression compress, int dim);

The Mat_VarWriteAppend() function writes (and optionally appends) the MATLAB variable matvar to the MAT file matfp which must be opened for writing. If the MATLAB variable already exists in the MAT file, the new data is appended to this variable along the (index 1 based) dimension d. The compress option allows the variable to be written using zlib compression if available. If compression is not available, the variable is written uncompressed.

The function returns 0 if the variable was successfully written/appended to the MAT file. Otherwise, an error value is returned.

This example program creates a MAT file named by the first argument to the program, and writes the variable named m_pi to the file in order to build a 2x1 array.
#include <math.h> 
#include "matio.h" 
 
int 
main(int argc,char **argv) 
{ 
    mat_t    *matfp; 
    matvar_t *matvar; 
    size_t    dims[2] = {1,1}; 
    double    m_pi = M_PI; 
 
    matfp = Mat_CreateVer(argv[1],NULL,MAT_FT_MAT73); 
    if ( NULL == matfp ) { 
        fprintf(stderr,"Error creating MAT file %s0,argv[1]); 
        return EXIT_FAILURE; 
    } 
 
    matvar = Mat_VarCreate("m_pi",MAT_C_DOUBLE,MAT_T_DOUBLE,2,dims,&m_pi,0); 
    if ( NULL != matvar ) { 
        int dim = 1; 
        Mat_VarWriteAppend(matfp,matvar,MAT_COMPRESSION_ZLIB,dim); 
        Mat_VarWriteAppend(matfp,matvar,MAT_COMPRESSION_ZLIB,dim); 
        Mat_VarFree(matvar); 
    } 
 
    Mat_Close(matfp); 
    return EXIT_SUCCESS; 
} 

Mat_CreateVer(3), Mat_Open(3), Mat_VarRead(3), Mat_VarWrite(3)
October 19, 2017 FreeBSD 12.0-RELEASE

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.