Error in pdm_experiment_eeg_only

Hi

I hope that you`ll be fine

I have a big problem with my program. that`s error is

Error in pdm_experiment_eeg_only (line 42)

framrate = screen ('framerate',0);

whats your idea for dissolving this?

thanks a lot

[Walter Roberson]

That is not the complete error message; it does not say what MATLAB thinks is wrong.

For example, some of the causes of an error on that line might be:

• you have a variable named screen in which case that would be an attempt to index it at location zero
• you might think you are using Psychtoolbox but you did not install it or it is not in your MATLAB path

[Mohan Doost]

Thanks a lot for your guidance

the complete error is:

>> pdm_experiment_eeg_only

Cannot find an exact (case-sensitive) match for 'screen'

The closest match is: Screen in C:\Windows\System32\Screen.m

Error in pdm_experiment_eeg_only (line 42)

framrate = screen ('framerate',0);

Answer 1

[Walter Roberson]

You need to install http://psychtoolbox.org/

[Mohan Doost]

thanks a lot

I installed it.

but I have blow error again:

>> pdm_experiment_eeg_only

Cannot find an exact (case-sensitive) match for 'screen'

The closest match is: Screen in D:\Program

Files\MATLAB\R2018b\toolbox\Psychtoolbox\PsychBasic\MatlabWindowsFilesR2007a\Screen.mexw64

Error in pdm_experiment_eeg_only (line 42)

framrate = screen ('framerate',0);

Answer 2

[Voss]

MATLAB is case-sensitive, so try changing screen to Screen:

framrate    = Screen ('framerate',0);

[Mohan Doost]

Im so happy for your comment

you helped me a lot

I have error again

Error using pdm_experiment_eeg_only (line 123)

Please input one subject/run for result file name as string ...

[Voss]

You're welcome!

I'm afraid I don't have your file pdm_experiment_eeg_only.m, so I cannot see what line 123 says. Would it be too much trouble to post it here?