fprintfMat

Arguments

file

a string, the pathname of the file to be written

M

a matrix of real numbers

format

a character string giving the format. This is an optional parameter, the default value is "%lf".

Supported format: %[width].[precision]type or %type, where:

width: an optional number that specifies the minimum number of characters output;

precision: an optional number that specifies the maximum number of characters printed for all or part of the output field, or the minimum number of digits printed for integer values;

type: lf, lg, d, i, e, f, g (see scanf_conversion for details).

text

a row (column) vector of strings giving non numerical comments stored at the beginning of the file.

Description

The fprintfMat function writes a matrix in a formatted file. Each row of the matrix give a line in the file. If text is given then the elements of text are inserted elementwise at the beginning of the file one element per line.

Examples

n = 50;
a = rand(n, n, "u");
fprintfMat(TMPDIR + "/Mat", a, "%5.2f");
a1 = fscanfMat(TMPDIR + "/Mat");

// Lets we create a file Mat1 and insert a comment into it
some_comment = ["This is a comment","This the second line of the comment.","This is the third line of the comment."];
fprintfMat(TMPDIR + "/Mat1", a, "%5.2f",some_comment);

See also

• scanf_conversion — mscanf, msscanf, mfscanf conversion specifications
• mclose — closes an opened file
• meof — checks if end of file has been reached
• mfprintf — converts, formats, and writes data to a file
• mfscanf — reads input from the stream pointer stream (interface to the C fscanf function)
• fscanfMat — reads a matrix from a text file
• mget — reads byte or word in a given binary format and converts to a double type
• mgetstr — reads a character string from a file
• mopen — opens a file in Scilab
• mprintf — converts, formats, and writes data to the main scilab window
• mput — writes byte or word in a given binary format
• mputstr — writes a character string in a file
• mscanf
• mseek — sets current position in a binary file
• mtell — Returns the offset of the current byte relative to the beginning of a file
• mdelete — deletes file(s)