Add ability to load NIRX data by passing path to header file (#7731)

Author: rob-luke

mne/io/nirx/nirx.py

@@ -5,6 +5,7 @@
 from configparser import ConfigParser, RawConfigParser
 import glob as glob
 import re as re
+import os.path as op
 
 import numpy as np
 
@@ -23,7 +24,7 @@ def read_raw_nirx(fname, preload=False, verbose=None):
     Parameters
     ----------
     fname : str
-        Path to the NIRX data folder.
+        Path to the NIRX data folder or header file.
     %(preload)s
     %(verbose)s
 
@@ -50,7 +51,7 @@ class RawNIRX(BaseRaw):
     Parameters
     ----------
     fname : str
-        Path to the NIRX data folder.
+        Path to the NIRX data folder or header file.
     %(preload)s
     %(verbose)s
 
@@ -65,6 +66,9 @@ def __init__(self, fname, preload=False, verbose=None):
         from ...coreg import get_mni_fiducials  # avoid circular import prob
         logger.info('Loading %s' % fname)
 
+        if fname.endswith('.hdr'):
+            fname = op.dirname(op.abspath(fname))
+
         # Check if required files exist and store names for later use
         files = dict()
         keys = ('dat', 'evt', 'hdr', 'inf', 'set', 'tpl', 'wl1', 'wl2',

mne/io/nirx/tests/test_nirx.py

@@ -25,6 +25,17 @@
                                 'NIRx', 'nirx_15_2_recording_w_short')
 
 
+@requires_testing_data
+def test_nirx_hdr_load():
+    """Test reading NIRX files using path to header file."""
+    fname = fname_nirx_15_2_short + "/NIRS-2019-08-23_001.hdr"
+    raw = read_raw_nirx(fname, preload=True)
+
+    # Test data import
+    assert raw._data.shape == (26, 145)
+    assert raw.info['sfreq'] == 12.5
+
+
 @requires_testing_data
 def test_nirx_15_2_short():
     """Test reading NIRX files."""