Well, I'm asking for error bars: http://en.wikipedia.org/wiki/Error_bar http://www.ncsu.edu/labwrite/res/gt/gt-stat-home.html
If, for instance, let's say you have a bar chart and the mean of particular data set is 5. As it is currently, you are basically saying that your 100% certain the value is 5 (ie. standard deviation of 0). Or at best you are saying that it is 5 and you don't know what the confidence interval is (which makes it worthless). So, to do it right, you would need to place an error bar on the chart going from 4-6 (for instance) because that represents the 95% (for instance) confidence interval. This is *absolutely* necessary whenever you use discrete data. The only time you shouldn't have an error bar is when the value is absolute (so basically whenever stats are involved you should have error bars). On Jul 1, 2:06 am, ChartMan <[email protected]> wrote: > Can you elaborate of what you are asking for. > An example will also be very helpful. > > ChartMan > > > > On Tue, Jun 30, 2009 at 8:29 PM, tazz_ben <[email protected]> wrote: > > > So, this is seems like fantastic system. I'm really impressed with > > what google has provided to use to do charting. However, it doesn't > > appear that you can place error bars on any of the charts. If that is > > the case, it is real problem for discrete data sets. In a way, it > > doesn't matter how cool the effects are, or how well it handles > > whatever, without being able to display how accurate a number is, the > > chart is useless. > > > So, is this something being worked on? Or is there way to extend the > > existing tool to allow for this? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en -~----------~----~----~----~------~----~------~--~---
