MyFisher23 (Scripts) Publisher's description
from Giuseppe Cardillo
Fisher's exact test of 2x3 contingency tables permits calculation of precise probabilities in situation where
Fisher's exact test of 2x3 contingency tables permits calculation of precise probabilities in situation where, as a consequence of small cell frequencies, the much more rapid normal approximation and chi-square calculations are liable to be inaccurate. The Fisher's exact test involves the computations of several factorials to obtain the probability of the observed and each of the more extreme tables. Factorials growth quickly, so it's necessary use logarithms of factorials. This computations is very easy in Matlab because x!=gamma(x+1) and log(x!)=gammaln(x+1). This
function is now fully vectorized to speed up the computation.
System Requirements:MATLAB 7.3 (R2006b)
Program Release Status: New Release
Program Install Support: Install and Uninstall