[en] Research and development regarding isotopic correlations is being promoted by the establishment of a Data Bank of Isotopic Compositions sponsored by ESARDA. A general computer program, called ISOCORR, is in preparation, which performs theoretical analysis of correlations and compares calculated and experimental data. A special computer program, called CORRELATIO, was written, which can handle linear correlation problems, in particular the case (which is not considered in normal textbooks) where both variables have comparable errors of random nature. Some isotopic correlation data available from the ESARDA data bank are treated with this program to illustrate its merits. (author)