Statistics
Statistical functions with java
Below is a simple set of classes for performing your own statistical analysis. As noted, they are simple (no multiple regression analysis, etc.) class myStats { double standardDeviation (double array) { double arr = new double; double av = average(array); for (int i = 0; i < array.length; i++) { arr =... »
Multicollinearity
The predictors should not correlate. In the stepwise selection one variable might take the prediction of the another variable into the model and the second variable will not be taken in to the model. The variables might get also inconsistent correlation coefficients (negative if the effect is positive). If we use wait events, there will... »
Does correlation help at all?
While studying how we can use statistics to better understand the performance of our applications, I came upon the concept of kurtosis. What this essentially means is that any given distribution is not normal if its kurtosis is very high…OK, that sounds like a fatal disease, what does it mean?!!! A normal distribution just means,... »