Red and yellow creates orange. Yellow and blue creates green. The secondary colors can be mixed further to create additional shades. Tertiary colors are the result of a primary and secondary color mixed together. For example, orange mixed with red creates red-orange.
An influential point is an outlier that greatly affects the slope of the regression line. One way to test the influence of an outlier is to compute the regression equation with and without the outlier. This type of analysis is illustrated below.
Contextual outliers are detected using the values for the behavioral attributes in a specific context. Therefore, a data point might be an outlier in a given context, but could be considered normal in a different context. These types of outliers have normally been explored in time-series data and spatial data.