One can interpret this coefficient in terms of explained variability of the ranks.

It can be thus be considered as non parametric. This coefficient is adapted to ordinal data. The Spearman coefficient is based on the ranks of the observations and not on their value. However, one needs to be cautious when interpreting these results, as if two variables are independent, their correlation coefficient is zero, but the reciprocal is not true. The p-values that are computed for each coefficient allow testing the null hypothesis that the coefficients are not significantly different from 0. Note: the squared Pearson correlation coefficient gives an idea of how much of the variability of a variable is explained by the other variable. Its value ranges from -1 to 1, and it measures the degree of linear correlation between two variables. This coefficient is well suited for continuous data. The Pearson coefficient corresponds to the classical linear correlation coefficient. XLSTAT proposes three correlation coefficients to compute the correlation between a set of quantitative variables, whether continuous, discrete or ordinal: Pearson correlation coefficient Note that the worksheet functions provided by the 'Analysis ToolPak - VBA' add-on for Excel are not available in Excel Online, or in this Add-on (it is not yet possible for Add-oins to create user-defined functions).This tool to compute different kinds of correlation coefficients, between two or more variables, and to determine if the correlations are significant or not. The Add-on's Random Number Generation function uses the well-known Mersenne Twister algorithm, also used in Excel's RAND built-in function the Excel Analysis ToolPak uses an older random number generator algorithm. Once the Add-on is downloaded into your browser, it doesn't communicate with other servers. The XLMiner Analysis ToolPak Add-on works entirely within your browser on your PC or other device, reading data you select in your Excel workbook, and writing statistical summaries and drawing charts that appear only in your workbook.

t-Test: Two-Sample Assuming Unequal Variances.

t-Test: Two-Sample Assuming Equal Variances.

Results will generally match the Excel Analysis ToolPak, as seen in many textbooks, screen images and videos. The Add-on's Task Pane input fields and worksheet output will be very familiar to Excel Analysis ToolPak users. The Add-on provides all 19 interactive functions included in the Excel Analysis ToolPak, plus a 20th function often requested by users, logistic regression. With the XLMiner Analysis ToolPak Add-on, you can perform statistical analyses of the same types available in the Analysis ToolPak in desktop Microsoft Excel.

Excel data analysis add in correlation