# dlmwrite

Write an numeric matrix to a text file file using a delimiter.

## Syntax

* dlmwrite(filename, M)
* dlmwrite(filename, M, delimiter)
* dlmwrite(filename, M, '-append')
* dlmwrite(filename, M, '-append', delimiter)
* dlmwrite(filename, M, delimiter, r, c)
* dlmwrite(filename, M, '-append', delimiter, r, c)
* dlmwrite(filename, M, delimiter, r, c, eol)
* dlmwrite(filename, M, '-append', delimiter, r, c, eol)
* dlmwrite(filename, M, delimiter, r, c, eol, precision)
* dlmwrite(filename, M, '-append', delimiter, r, c, eol, precision)

## Input argument

* filename - a string: filename destination.
* M - an numeric or logical matrix.
* delimiter - a string: ',' , '\t', ';' delimiter. default ','
* r, c - integer: offset. default : 0, 0
* eol - a string: 'pc' or 'unix'.
* precision - a integer or C format string. (default: 5)

## Description

dlmwrite writes an numeric matrix to an ASCII format file.

## Example

```matlab
A = [Inf, -Inf, NaN, 3];
filename = [tempdir(), 'dlmwrite_example.csv'];
dlmwrite(filename, A);
R = dlmread(filename)
A = eye(3, 2);
dlmwrite(filename, A, ';', 4, 5);
R = fileread(filename)
```

## See also

[dlmread](dlmread), [fileread](../stream_manager/fileread).

## History

| Version | Description     |
| ------- | --------------- |
| 1.0.0   | initial version |

## Author

Allan CORNET
