isvarname - Determine whether input is valid variable name
Syntax
tf = isvarname('str')
isvarname str
Description
tf = isvarname('str') returns
logical 1 (true) if the string str is
a valid MATLAB variable name and logical 0 (false)
otherwise. A valid variable name is a character string of letters,
digits, and underscores, totaling not more than namelengthmax characters and beginning
with a letter.
MATLAB keywords are not valid variable names. Type the
command iskeyword with no input
arguments to see a list of MATLAB keywords.
isvarname str uses the MATLAB command
format.
Examples
This variable name is valid:
isvarname foo
ans =
1
This one is not because it starts with a number:
isvarname 8th_column
ans =
0
If you are building strings from various pieces, place the construction
in parentheses.
d = date;
isvarname(['Monday_', d(1:2)])
ans =
1
See Also
genvarname, isglobal, iskeyword, namelengthmax, is*
 | isvalid (timer) | | isvector |  |
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