Bar graphs and confidence intervals

building reports webintelligence
1

Hello:

I am using WebI 4.1 and I have recently started using bar graphs.

I am looking for some advice on how to create a bar graph which would also display the error bars (95% Confidence intervals for the plotted means). I can calculate the 95% CIs for the mean with BO, but I am not sure how to put them on the same graph as the plotted mean.

Thanks for your advice.

simonpm (BOB member since 2014-10-30)

2

Hey, not sure if I understand you correctly but you can set it as measure and choose a line bar graph and select the measure as one of the value axis.

jordy :south_africa: (BOB member since 2014-12-29)

3

Hi Jordy,

thank you for the reply. My apologies I did not include the example. Here is what I am looking for:
http://web.anglia.ac.uk/numbers/common_folder/graphics/fig5_error_bars.jpg or http://blogs.sas.com/content/iml/files/2011/10/barci.png

In BO, I have plotted the mean (measure: “calculated_Means”) as Y axis, groups (dimension) as X axis on the bar graph and I have another two measures “lower95%_CI_Mean” and “upper95%_CI_Mean” that I would also like to plot on the same graph but with the caveat that these two measures are displayed as error bar.

simonpm (BOB member since 2014-10-30)

4

Hi, what kind of visualization are you using for these currently? Not sure what’s the version of BO that you have in your environment but box plot does look like a good fit for the visualization that you looking at …

jordy :south_africa: (BOB member since 2014-12-29)