Residuals are nothing but how much your predicted values differ from actual values. So, it's calculated as actual values-predicted values. ... <看更多>

According to the discussion in Draper and Smith's Applied Regression Analysis (3rd edition, roughly page 59), this residual plot may be used to check for ... ... <看更多>

Plotting partial residuals on top of the estimated marginal means allows detecting missed modeling, like unmodeled non-linear relationships ... ... <看更多>