MATLAB Function Reference Previous page   Next Page

Convert to character array (string)



S = char(X) converts the array X that contains positive integers representing character codes into a MATLAB character array (the first 127 codes are ASCII). The actual characters displayed depend on the character set encoding for a given font. The result for any elements of X outside the range from 0 to 65535 is not defined (and can vary from platform to platform). Use double to convert a character array into its numeric codes.

S = char(C), when C is a cell array of strings, places each element of C into the rows of the character array s. Use cellstr to convert back.

S = char(t1, t2, t3, ...) forms the character array S containing the text strings T1, T2, T3, ... as rows, automatically padding each string with blanks to form a valid matrix. Each text parameter, Ti, can itself be a character array. This allows the creation of arbitrarily large character arrays. Empty strings are significant.


Ordinarily, the elements of A are integers in the range 32:127, which are the printable ASCII characters, or in the range 0:255, which are all 8-bit values. For noninteger values, or values outside the range 0:255, the characters printed are determined by fix(rem(A, 256)).


To print a 3-by-32 display of the printable ASCII characters,

See Also

cellstr, double, get, set, strings, strvcat, text

Previous page  cgs checkin Next page

© 1994-2005 The MathWorks, Inc.