fix #1720 - added semicolon to variable j, and stratified private fun…

…cs (#1727)

* fix - correcting distance calculation of Rx-Tx combinations

* cos - removing unused variables

* fix - correcting definition of Rx and Tx in sens.tra and correcting related wavelength readout

* fix #1720 - added semicolon to variable j, and stratified private funcs

* fixed merge conflicts

* changed sens into opto

Co-authored-by: Jörn Horschig <jhorschig@artinis.com>
Co-authored-by: Robert Oostenveld <r.oostenveld@gmail.com>
Co-authored-by: Jan-Mathijs Schoffelen <1517611+schoffelen@users.noreply.github.com>

external/artinis/ft_nirs_prepare_ODtransformation.m

@@ -191,7 +191,7 @@
 optodeidx      = (transmitteridx | receiveridx)'; % transpose to get back to tra order
 
 % extract the wavelengths
-wavelengths  = opto.wavelength(tratra(transmitteridx));
+wavelengths = opto.wavelength(tratra(transmitteridx));
 wlidx = bsxfun(@minus, coefs(:, 1), wavelengths);
 
 % find the relevant channel combinations