data = data_new_from_txt(filename, range = []) Loads file and returns a struct containing the following elements: data.X: sample dataset data.classes: corresponding classes. data.x: wavenumber vector, currently running from 1801.47 to 898.81 data.class_labels: {'0', '1', '2', ... Inputs: filename: file name range: initial and final values for the features labels. If not used, default will be [1801.47, 898.81] for the standard file type or feature labels will be taken from the txt file in case of alternative file structure. Two file structures are supported: - Table of data with no header and last column containing the class index. Delimiters such as ';', ' ', or '\t' (Tab) are supported. - Table with first row as x-axis values, first column as observation identifiers and last column as class indexes. Note that the first and last elements of the first row are not used. Only the ';' delimiter is supported.