Error using 'rdmat' please help

I am getting following error while accesing one of the data of mimic-1 of physionet.

Unable to perform assignment with 0 elements on the right-hand side.

Error in rdmat (line 102)

gain=info{3}{:};

[Rik]

Did you read the documentation for this external function?

[SHRESTH GUPTA]

yes i have read the documentation.its working for one or two datasets but not with others.

[Rik]

Have a read here and here. It will greatly improve your chances of getting an answer.

Without the actual function it is difficult to help you. We might need your data as well (in which case you can attach it as a zip file). Your current code will only read a single dataset.