How to save ".txt" to ".mat"?

Dear All,

I have a file ".txt" and I want to save it to ".mat". I used this code and got this error.Please see below.

data=dlmread('RO-2013-equinox.txt');
    >> save ('RO-2013-equinox.mat',data);

Error using save

Must be a string scalar or character vector.

I would appriciate to help me.

[Stephen23]

save('RO-2013-equinox.mat','data')
%                          ^    ^ this needs to be the name of a variable

[Ara]

Thank you. I wish you write in answer so that I can accept it and vote to you.

Answer 1

[Chunru]

data=dlmread('RO-2013-equinox.txt');
save('RO-2013-equinox.mat', 'data');        % quote the variable name