curryreader 0.1.1

File reader for Compumedics Neuroscan data formats (.cdt, .dat).

CURRY Reader For Python

This is an open-source tool which allows to load CURRY data into Python. It supports: raw float (.cdt), ascii (.cdt), legacy raw float (.dat) and legacy ascii (.dat).

Installation And Dependencies

This package depends on numpy. If you are new to Python and don't already have numpy, please see https://numpy.org/install/

We recommend using the Miniconda (https://docs.conda.io/en/latest/miniconda.html) distribution of Python.

The complete list of dependencies is contained in the file requirements.txt

Having installed a Python distribution, install dependencies for this package in command prompt in Windows or terminal in Linux/MacOs by navigating to the this project's folder (where requirements.txt is located) and use:

pip install -r requirements.txt --user

Inputs

inputfilename:	    if left empty, reader will prompt user with file selection box, otherwise specify filename with path;
                    supported files are: raw float (cdt), ascii (cdt), legacy raw float (dat) and legacy ascii (dat)
plotdata:           plotdata = 0, don't show plot
                    plotdata = 1, show plot (default)  
                    plotdata = x, with x > 1, shows and automatically closes plot after x seconds
verbosity:          1 is low, 2 is medium (default) and 3 is high

Output As Dictionary With Keys

'data'              functional data matrix (e.g. EEG, MEG) with dimensions (samples, channels)
'info'              data information with keys: {'samples', 'channels', 'trials', 'samplingfreq'}
'labels'            channel labels
'sensorpos'         channel locations [x,y,z]
'events'            events matrix where every row corresponds to: [event latency, event type, event start, event stop]
'annotations'       corresponding annotations to each event
'epochinfo'         epochs matrix where every row corresponds to: [number of averages, total epochs, type, accept, correct, response, response time]
'epochlabels'       epoch labels
'impedancematrix'   impedance matrix with max size (channels, 10), corresponding to last ten impedance measurements
'landmarks'         functional, HPI or headshape landmarks locations
'landmarkslabels'   labels for functional (e.g. LPA, Nasion,...), HPI (e.g. HPI 1, HPI 2,...) or headshape (e.g. H1, H2,...) landmarks 
'hpimatrix'         HPI-coil measurements matrix (Orion-MEG only) where every row is: [measurementsample, dipolefitflag, x, y, z, deviation] 

Usage Examples

import curryreader as cr

# 1) Use file selection box, show plot (default), verbosity (default), output in dictionary "currydata"
currydata = cr.read()

# 2) Specify file path, avoid plot, minimum verbosity, output in dictionary "currydata"
currydata = cr.read("test_data\\Float.cdt", plotdata = 0, verbosity = 1)

# 3) Specify file path, show plot (default), verbosity (default), output in dictionary "currydata", print items
currydata = cr.read("test_data\\HPI.cdt")
for key, value in currydata.items(): print(key + ":\n", value)

Licensing

BSD (3-clause)