779 reputation
312
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location Melbourne, Australia
age 37
visits member for 2 years, 1 month
seen Nov 20 at 3:21

Mining logistics analyst. Mathematica user for about 3 years.


Oct
29
comment ArrayPlot with variable width bars
One more thing. If the size of the data increases you need to scale the height of the rectangle to stop it looking too thin.
Oct
29
comment ArrayPlot with variable width bars
Thanks for your help and I'll let you know if I have trouble figuring out the legend.
Oct
28
accepted ArrayPlot with variable width bars
Oct
28
comment ArrayPlot with variable width bars
0.05 seconds for my 3,311 row datatset. Using the graphics primitives makes a huge speed difference, even if they don't have all the bells a whistles. I'll give this one the answer because I did bring up performance in my original question.
Oct
28
comment ArrayPlot with variable width bars
There's a bit of an issue with this approach for large datasets. My 3,311 row dataset fails due to lack of memory.
Oct
28
comment ArrayPlot with variable width bars
I was planning on adding a legend but the colours would need to be discrete because the property value is an integer.
Oct
28
comment ArrayPlot with variable width bars
Very nice. ChartElementFunction seems to be the bit I was missing. The performance I get on my machine is 31 seconds for a dataset with 3,311 elements which is probably acceptable. Is it worth looking into using graphics primitives like Rectangle if I want faster speeds?
Oct
28
comment ArrayPlot with variable width bars
@kguler - nice. I may be able to modify that one to get what I want.
Oct
28
comment ArrayPlot with variable width bars
I've added a picture. It's more like a stacked bar chart on its side with the colour being defined by the property value.
Oct
28
comment ArrayPlot with variable width bars
I've updated by question to provide more clarity. Basically the property (1->20) would be better represented as a colour instead of the height of the bar.
Oct
28
revised ArrayPlot with variable width bars
added 150 characters in body
Oct
28
asked ArrayPlot with variable width bars
Oct
20
answered Mathematica data structures for analysis
Oct
1
awarded  Yearling
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Apr
10
awarded  Popular Question
Oct
1
awarded  Yearling
Sep
23
accepted How do I calculate Standard Deviation confidence intervals in Mathematica?
Sep
23
comment How do I calculate Standard Deviation confidence intervals in Mathematica?
Nice,VarianceCI does indeed produce a asymmetrical interval. I think I was just a bit confused as to why it was different from MeanCI. It would also explain why there isn't a StandardDeviationCI, because it's a trivial extension to VarianceCI.