# Calculating Correlation Values for Categorical Data

Calculating correspondence treasures for absolute basis In enjoin to ascertain the correspondence treasures for the rooms in our basis set, The Pearson Correspondence Coefficient was used. This requires that the basis in twain rooms be leading. But what if we were looking to reckon the correspondence on two fond rooms that were say, numerical and absolute, or well-mannered-mannered-balanced twain absolute. The Point Biserial coefficient is a extraordinary plight of The Pearson Correspondence Coefficient; it is a bifurcation of PCC although they are mathematically equipollent. It is used when one room has leading basis and the other has absolute treasures, specifically absolute basis that can merely be one of two options for development gender. To reckon the PBC the basis is disconnected betwixt the two treasures of the dichotomous basis, where the two treasures of this room are fond the treasures 0 and 1. The disposal of the basis conquer in open parade the frequencies for each treasure and can be used to parade how well-mannered-mannered-mannered two rooms are correlated. Spearman’s Rank Enjoin Coefficient is a manner of estimating correspondence betwixt basis that is pretended and importantly must be enjoined. It checks how well-mannered-mannered-mannered the correlativeness betwixt the two rooms can be vivid using a monotonic capacity Another manner for careful the correspondence is the Chi squared Test, this requires basis to be classified and frequencies worked out in a consideration. From this consideration the correspondences can be solid using the Chi Square Test, this works on any two of pretended or absolute rooms