# writeMatrix

Write MATLAB matrix to a k-Wave HDF5 file.

## Syntax

    writeMatrix(filename, matrix, matrix_name)

## Description

`writeMatrix` writes a MATLAB matrix to an existing HDF5 file. If the HDF5 file specified by filename doesn't exist, it is automatically created. Matrix attributes required by the k-Wave C++ code are automatically added. All variables are stored as 3D matrices (with the size of unused dimensions set to 1), and complex matrices are reorganised to C++ format before storing.

## Inputs

`filename` | name of HDF5 file to write matrix to
`matrix` | data to write
`matrix_filename` | string containing the name of the matrix

## See Also

`h5write`, `writeAttributes`, `writeFlags`, `writeGrid`