Arthur Lugtigheid

Here's a handy code sniplet that enables you to read a file with columns of data with headers into MATLAB:

function importfile(filename)
 
% import the file
newdata = importdata(filename);
 
% create new variables in the base workspace from these fields
vars = fieldnames(newdata);
for i=1:length(vars),
    assignin('base', vars{i}, newdata.(vars{i}));
end

This will give you three variables in your workspace:

• colheaders: a list of all the variable names, extracted from the header
• data: a matrix with all your data in it
• textdata: essentially the same thing as colheaders

Today, I'm publishing a small toolbox for Matlab which enables you to run simple adaptive staircase procedures. Its theoretical basics can be found in Levitt's 1971 influential article titled "Transformed up-down methods in psychoacoustics". Its code flow is inspired on code previously written by Dirk Beer.

More information about the toolbox itself can be found on the project page.