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ratal / mdfreader

Read Measurement Data Format (MDF) versions 3.x and 4.x file formats in python
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how to get the name and numbers of the groups in MF4? #175

Closed AndyYangjd closed 4 years ago

AndyYangjd commented 4 years ago

Hi,

Thanks for your mdfreader module. But i get a little confused about where can i get the group's info, such as the length, names. In fact, can the user get some functions, ex. get_NGroups(), getGroupName(group_id)?

Have a nice day!

ratal commented 4 years ago

Hi, There are several ways of getting this information.

  1. with mdfinfo class, it is reading only metadata of MDF file
  2. after reading a file and its data, for each channel you have a 'id' key containing a tuple of ((data group number, channel group number, channel number), (channel name, channel source, channel path), (group name, group source, group path))
  3. the attribute masterChannelList is representing the structure of the mdf with one master key per group having a value list of channel.
AndyYangjd commented 4 years ago

Hi, I get it.

Thanks for your reply.