%% Determine Variable Name Validity
% Show that input that starts with a number is not a valid variable name.

s = '8th_column';
isvarname(s)

%
% Change the input to a valid variable name.

s = 'column_8';
isvarname(s)

%
% Use the command form to determine if the input is a valid variable name.

isvarname column_8

% Copyright 2012 The MathWorks, Inc.