The scatter plot matrix contains all possible two-variable combinations of continuous variables. The r statistic measures the linear correlation between two such variables. R square is the coefficient of determination. It is a statistic about the proportion of the variation in the response that is related with changes in the factor levels through the model. So R square is not relevant to the pair-wise correlations.
The scatter plot matrix contains all possible two-variable combinations of continuous variables. The r statistic measures the linear correlation between two such variables. R square is the coefficient of determination. It is a statistic about the proportion of the variation in the response that is related with changes in the factor levels through the model. So R square is not relevant to the pair-wise correlations.