Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_read_data”.
FT_READ_DATA reads electrophysiological data from a variety of EEG, MEG and LFP files and represents it in a common data-independent format. The supported formats are listed in the accompanying FT_READ_HEADER function. Use as dat = ft_read_data(filename, ...) Additional options should be specified in key-value pairs and can be 'header' header structure, see FT_READ_HEADER 'begsample' first sample to read 'endsample' last sample to read 'begtrial' first trial to read, mutually exclusive with begsample+endsample 'endtrial' last trial to read, mutually exclusive with begsample+endsample 'chanindx' list with channel indices to read 'chanunit' cell-array with strings, the desired unit of each channel 'checkboundary' boolean, whether to check for reading segments over a trial boundary 'checkmaxfilter' boolean, whether to check that maxfilter has been correctly applied (default = true) 'cache' boolean, whether to use caching for multiple reads 'dataformat' string 'headerformat' string 'fallback' can be empty or 'biosig' (default = ) This function returns a 2-D matrix of size Nchans*Nsamples for continuous data when begevent and endevent are specified, or a 3-D matrix of size Nchans*Nsamples*Ntrials for epoched or trial-based data when begtrial and endtrial are specified. The list of supported file formats can be found in FT_READ_HEADER. See also FT_READ_HEADER, FT_READ_EVENT, FT_WRITE_DATA, FT_WRITE_EVENT