To prevent unnecessary dependencies on functions from additional Mathworks toolboxes, FieldTrip includes a number of drop-in replacement functions with the same behaviour as their MATLAB counterpart.

Alternatives are provided for the following functions from the “stats” toolbox

• nansum, nanstd, etc.
• biocdf
• binopdf
• tcdf
• range

Alternatives are provided for the following functions from the “signal” toolbox

• barthannwin
• bilinear
• blackmanharris
• bohmanwin
• boxcar
• butter
• filtfilt
• flattopwin
• gausswin
• hann
• hanning
• hilbert
• kaiser
• nuttallwin
• parzenwin
• rectwin
• triang
• tukeywin
• window

Alternatives are provided for the following functions from the “images” toolbox

• rgb2hsv