ABSTRACT

The general idea of analysis of residuals is to s tudy various plots of residuals in order to evaluate the fit of a given model to the data . We hence need to s tudy the distribution of the residuals, in order to know how they are supposed to behave in the plots. We first s tudy their null distribution (i.e. their distribution under the model being studied). The non-null distribution of residuals will be studied in Section 5.3.