I think I have solved my problem. During some trial-and-error exploration I noticed that AdjacentPoint1 and AdjacentPoint3 are of type integer, while the others, Q1, Q3, etc. are of type double. It suggests that AdjacentPoints are not data values (as I have been assuming) but ordinal positions in th...

For me the "correct" figure would be one corresponding to the "user" values I provided. Thus the lower whisker (the one in the negative direction) should extend to 10 (AdjacentPoint1) while the whisker in the positive ditection should extend to 35 (AdjacentPoint3). But when I run the program I liste...

I have attempted to use the UseCustomValues := True but the boxplots are never right (the whiskers are incorrectly drawn). Here is the code I used in simple tryouts (Delphi 6, & TeeChart version 6.01 pro): I create a new application and stick a chart on Form1 with one boxplot series: ---------------...