passing list data structure in channel

[ntp3105]

Can I pass multiple channel names to channel ? For instance,
channel = group['channel_1', 'channel_2']

[adamreeve]

Hi @ntp3105, no you can't, and I don't understand what result you expect to get back. What are you trying to achieve?

[ntp3105]

Thank you for the reply, @adamreeve
For my query, I realize I can add for loop over channel names instead of calling all of them at once. As for what I am trying to achieve, I have lots of tdms files with different group and channel names. I don't know the names of the channels and group mentioned in the files. Can I use npTDMS to read them from the file?

[adamreeve]

Right, yes using a loop over names would make sense. If you don't know the group and channel names ahead of time you can loop over all groups and channels using the TdmsFile.groups and TdmsGroup.channels methods. Eg:

for group in tdms_file.groups():
    print(f"group '{group.name}'")
    for channel in group.channels():
        print(f"channel '{channel.name}'")

Or alternatively you can actually iterate over the TdmsFile and TdmsGroup objects to get the names too:

for group_name in tdms_file:
    print(f"group '{group_name}'")
    group = tdms_file[group_name]
    for channel_name in group:
        print(f"channel '{channel_name}'")
        channel = group[channel_name]

[ntp3105]

Thank you so much @adamreeve. your reply helped me build code for extracting data from tdms files.