Using a Variable inside the name to save a file

Hi all,

I would like to use a Variable that changes inside the name of a file to save.

the variable is "ID"

ID=P01

and I want to save a created figure as following:

saveas(gcf,'date_'[ID]'_task.jpg');

but that obviously doesn't work, and i dont know what the trick is :(

Answer 1

[Stephen23]

fnm = sprintf('date_%s_task.jpg',ID);
saveas(gcf,fnm);

Note that obtaining and referring to explicit graphics handles is more reliable than using gcf, gca, etc. and hoping that the current object is the one that you want to refer to.