Welcome to bwpy’s documentation!#
bwpy
helps you interact with 3Brain’s BrainWave data formats BRW and BXR. It is built on top
of h5py as the data formats are contained within an HDF5
structure.
The package can be installed as follows:
pip install bwpy
BWR and BXR files can be opened as a regular h5py.File
objects (see File Objects):
import bwpy
with bwpy("my_data.bwr", "r") as datafile:
print(datafile.description)
Slicing#
The package allows you to slice the data in .brw files. The data can be restricted to certain time samples by indexing the .t property like a one-dimensional array: .. code-block:: python
import bwpy
- with bwpy(“my_data.bwr”, “r”) as datafile:
# Return the slice of the first 10 temporal recordings with a step of 2 datafile.t[0:10:2]
The data can be restricted to certain channels by indexing the .ch property like a two-dimensional array:
import bwpy
with bwpy("my_data.bwr", "r") as datafile:
# Return the slice of the block of the first 10x10 channels
datafile.ch[0:10, 0: 10]
The obtained slices can themselves be sliced further:
import bwpy
with bwpy("my_data.bwr", "r") as datafile:
# Return the slice of the first 10 temporal recordings of the first channel
datafile.t[0:10].ch[0, 0]
After slicing, the sliced data can be obtained by accessing the data property:
import bwpy
with bwpy("my_data.bwr", "r") as datafile:
sliced_data = datafile.t[0:10].ch[0, 0].data