Frequently Asked Questions (FAQ) 
Developed by Morten Mørup 
A tOOLbox FOR MULTICHANNEL TIMEFREQUENCY ANALYSIS 
The MATLAB prompt shows 
Running out of RAM is a typical problem in ERPWAVELAB. Luckily there are a number of ways to solve this issue. Click here to see how. 
How can I access the various plot functions outside ERPWAVELAB 
ERPWAVELAB provides a number of plot functions. While the topographical plots are provided by EEGLAB using the functions: Topoplot and Headplot a documentation for the plotting functions provided by ERPWAVELAB can be found in the library: ERPWAVELAB/Tools/plotfcns The functions provided are: montageplot  function giving the plot showed in the topmontageplot  function giving the topographical plotcoh  function plotting the recorded cross plotNMF  function plotting the NMF decomposition plotallcond  function plotting the 3way plotallcond2  function plotting the multisubject NMF plotcore  function plotting the core Array of a 
How can I access the various decomposition functions outside ERPWAVELAB 
The algorithm for PARAFAC decomposition is given in: Tools/NMWF/NMWF.m While the algorithm for the TUCKER decomposition is given in : Tools/HONTF/HONTF.m 
For some reason I can’t analyze multiple datasets 
Your datasets have to have the same number of channels, time and frequency points. 
How can I analyze the ERPWAVELAB data files outside ERPWAVELAB 
The ERPWAVELAB files are regular .mat files. Consequently, they can be loaded by the MATLAB load command. For a detail of the dataset structure click here.

For some reason the datasets won’t load 
The path to the EEGLAB plotting functions headplot.m and topoplot.m has to be given. Either set the paths in MATLAB or make sure EEGLAB is running. 
How can I use my own wavelet 
In ERPWAVELAB you can easily add your own wavelets. To learn how click here. 

