Not able to get any output file with CSV writer or GDF writr
Posted: Sun Apr 19, 2015 6:18 pm
Hi,
I just started using OpenVibe and I am facing problems to get the CSV/GDF writers working. I am using OpenVibe version 1.0.0 on windows 64 bit system.
Above is a simple scenario I am trying with. I have a GDF pre recorded file with EEG data which I am giving to the EDF file reader.
Here are some of my doubts, please excuse me if they are naive
1) Both the EDF/CSV file writers are expecting (Select a file to open) an already existing file, does that mean it will only update a file but cant create a new file? I tried to give a file name with path that didn't exist to check if the program is creating the file and writing to it, but no file was created in that path.
2) I tried to create an empty csv file and give it to the CSV file writer, but to my surprise, after I ran the scenario, the CSV file was written with values like "0.0000000000e+000;1.2564707538e-009;6.7523583253e-010;5.7504941824e-010". Is this normal? If not can you think of a reason why is it not writing decimal numbers?
3)(General question) Once I start running the scenario, how much time should I allow before the filter is applied to all data, is it okay if I run the scenario and quickly stop it for all the data in the input file to be filtered and written to the output file or should I wait for the length of the recording time for ex: 15 mins of eeg recording, since it looks like it is storing only certain no of samples per buffer?
Thanks in advance.
I just started using OpenVibe and I am facing problems to get the CSV/GDF writers working. I am using OpenVibe version 1.0.0 on windows 64 bit system.
Above is a simple scenario I am trying with. I have a GDF pre recorded file with EEG data which I am giving to the EDF file reader.
Here are some of my doubts, please excuse me if they are naive
1) Both the EDF/CSV file writers are expecting (Select a file to open) an already existing file, does that mean it will only update a file but cant create a new file? I tried to give a file name with path that didn't exist to check if the program is creating the file and writing to it, but no file was created in that path.
2) I tried to create an empty csv file and give it to the CSV file writer, but to my surprise, after I ran the scenario, the CSV file was written with values like "0.0000000000e+000;1.2564707538e-009;6.7523583253e-010;5.7504941824e-010". Is this normal? If not can you think of a reason why is it not writing decimal numbers?
3)(General question) Once I start running the scenario, how much time should I allow before the filter is applied to all data, is it okay if I run the scenario and quickly stop it for all the data in the input file to be filtered and written to the output file or should I wait for the length of the recording time for ex: 15 mins of eeg recording, since it looks like it is storing only certain no of samples per buffer?
Thanks in advance.