MATLAB: Saving variables and figures uniquely when processing a sequence of files

saving figures and .txt files with num2str(ii)

I am trying to save a variable (A) with the num2str(k)so that I can run multiple files at once, but keep getting an error.
example: hgsave('SummaryPlot' num2str(ii)); and hgsave('SummaryPlot' num2str(ii),'.txt');
If there a better way to do this?

Best Answer

try
hgsave(['SummaryPlot',num2str(ii)]);
notice the square brackets in order to concatenate 'SummaryPlot' and the output from num2str(ii). Same with
hgsave(['SummaryPlot',num2str(ii),'.txt']);