# Calculation of Correlation Coefficient Between the Class Label Using MATLAB

Question

Please compute the correlation coefficient by using the dataset crcf.mat 2.

This dataset contains one matrix X and one vector Y . For the matrix X, each row stands for one observation (datapoint) and each column stands for one attribute describing the datapoint. For the vector Y, it stores the label of each observation. Please note that the i-th row of X and the i-th row of Y are related to the same datapoint. Now we would like to know how those attributes are correlated with the class labels? Please compute the correlation coefficient between the class label and each of those attributes. Based on the computed results, are they positively correlated, negatively correlated, or uncorrelated? Which attribute is the most correlated with the class label? Please rank the attributes from the most correlated to the least correlated? You have to submit your MATLAB codes, which is a script _le with .m extension. In this script _le, you can add your computed results of correlation coefficient and conclusions as comments.

What is the value of the correlation coefficient between the class label and each of the attributes and how they are correlated? You also have to present the ranking list of the attributes.

Summary

This question belongs to MATLAB software and discusses about application of MATLAB to probability and statistics to compute correlation coefficient between the class label of given data.

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