Hi Wouter, I think the following example is what you want, though it could be difficult to program is you have many many bars: pro barplot_errorplot_ex nBars = 3 colors = ['red','yellow','blue'] data = RANDOMU(s,10,nBars) data_error = [0.2, 0.1, 0.1, 0.2, 0.2, 0.1, 0.2, 0.2, 0.1, 0.1] loc1 = INDGEN(10)-.25 b = BARPLOT(loc1, data[*,0], FILL_COLOR=colors[0], WIDTH = 0.25, /overplot) p = errorplot(loc1, data[*,0], data_error, /OVERPLOT, LINESTYLE = 6) loc2 = INDGEN(10) b = BARPLOT(loc2, data[*,1], FILL_COLOR=colors[1], WIDTH = 0.25, /overplot) p = errorplot(loc2, data[*,1], data_error, /OVERPLOT, LINESTYLE = 6) loc3 = INDGEN(10)+.25 b = BARPLOT(loc3, data[*,2], FILL_COLOR=colors[2], WIDTH = 0.25, /overplot) p = errorplot(loc3, data[*,2], data_error, /OVERPLOT, LINESTYLE = 6) end Cheers, Fernando

Hi Fernando, That is indeed what I want. Thanks for the reply! However, I would prefer not to have to define the location of the bar and rather use the keywords that are available within a function. I guess that errorplot() simply lacks the appropriate functionality to do this... Well hopefully in a later version it will be possible. Thanks again. Cheers, Wouter

Hi Wouter, Yes, this can be a nice feature request. I will be creating a feature request on this issue, and hopefully in the near future this will be part of errorplot(). Cheers!, Fernando