Difference between revisions of "Talk:Chart2/ChartTypes"

Revision as of 17:15, 13 July 2007

Bm@openoffice.org 15:50, 13 July 2007 (CEST) : I am not sure if Venn diagrams are really important. Is there really a need in those? Especially offered by a program like OOo chart? Maybe we could have some facility of showing overlapping objects in Draw. How would data look for a chart with two circles A and B overlapping "a bit"

Tonygalmiche 17:56, 13 July 2007 (CEST) : Me too (I am not sure if Venn diagrams are really important). My priorities are :

• Combined charts
• Surface Chart
• Bubble Chart/ Circles Plot
• Gantt Charts
• Negative value in a percent chart

Discoleo 19:15, 13 July 2007 (CEST) : Venn diagrams are very useful when plotting overlapping categorical data, e.g.:

• 800 patients take medicine A
• 170 take B
• 90 take both A+B
• in addition we may wish to display the mortalities in the 3 groups

This is even more useful when analysing more than 2 groups of data:

• e.g. the distribution of 5 diseases in a group of 5000 patients
• there are A, B, C, D, E and various overlappings of those diseases
• in principle, only important overlappings (> 1% of patients) should be shown
• again, we may add additional information, like mortality to the graph