This node generates notched boxplots of categorical data.

The boxplot shows the following:

- The box shows the interquartile range (IQR; Q1 to Q3)
- The whiskers show the extent of the 'regular' values - i.e the range of the actual values within 1.5 * IQR of the IQR
- The mean is shown as an open circle with a cross in, which may or may not be within the box
- The median is shown as a line crossing the box
- The notch shows the 95% confidence interval of the median, defined as +/- 1.57 * IQR / sqrt(N), where N is the number of values. The notch is centred on the median, and may extend beyond the ends of the boxes
- Outliers are shown as 'o' beyond the whiskers. Outliers are in the range 1.5 * IQR to 2 * IQR beyond the IQR
- Extreme outliers are shown as 'x' beyond the whiskers. Outliers are beyond 2* IQR beyond the IQR

If the 2nd Port is null, then the colour is as follows.

- The outline and whisker are the specified default outline colour
- If there is a ColorModel on the 1st port for the category column, then the fill is from the colour model
- If no colormodel, or it is not on the category column, then the fill colour is the specified default fill colour

If the 2nd port is connected, then it must contain a single string column with a colour model associated to it. The column must contain the names of the series columns (Using an Extract Column Header -> Transpose -> Color Manager sequence of nodes achieves this). Now, the colouring is as follows:

*Outline & Whisker*

- If there is a ColorModel on the 1st port for the category column, then the outline is from the colour model
- If no colormodel, or it is not on the category column, then the outline is the default outline colour specified

*Fill*

- If there is a single StringCell column in the second table, then the series fill colours come from the color model
- If not, or for series names not represented, the fill colour is the default fill colour specified.