how do I convert all capital letters in a string to lowercase and add a space before them?

I have a function that turns the input variable into a plot legend and output filename:

axisLabelInput               = inputname(3);
labelInput                   = strrep(axisLabelInput,'_',' ');

legend(['Range at ' labelInput]);
print(gcf, '-depsc', '-r300', labelInput);

but this only works when the input variable is in the format input_var_1. It is far more common for the input variables to be in a different format, eg inputVar1, which looks awful in a legend entry. How can I modify my code to find all capital letters in my desired input variable, and make them lowercase and add a space beforehand, so that my legend and file output still make sense?

Answer 1

[TAB]

Mystr = 'ABCDEF';
MystrLower = lower(Mystr);
MystrLowerWithSpace = [' ' MystrLower];

%---------OR----------
% In 1 line
MystrLowerWithSpace = [' ' lower(Mystr)];

See lower

[Sara]

Actually, I accepted that answer too soon. Sorry for not being clear, what I meant was that I wanted to put a space before every letter that had previously been capitalized. So if the input was:

inputVarOne

then the converted value would be

input var one

but the rest is perfect, thanks.

Answer 2

[Muruganandham Subramanian]

Use lower() command