Clustering large dataset
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Marcelo Laia ▴ 440
@marcelo-laia-2007
Last seen 3 months ago
Brazil

I'm trying to do a MetaboAnalystR [1]'s analysis with a large dataset. All works great except PlotHeatMap function. This functions plot two type of image output: "overview" and "detail". In "overview" mode, we can do plot the image in png or pdf. However, in this mode, we do not could see the heatmap genes labels [2]. If I try to "detail" mode, in pdf graphics device, an output image [3] is generated. However, it wasn't opened in acroread, evince. It is only viewed in xpdf. If I try to "detail" mode, in png graphics device, I got the error:

Error in Cairo::Cairo(file = imgName, unit = "in", dpi = dpi, width = w, : Failed to create Cairo backend!

I figured out that this error is not MetaboAnalystR related. Maybe it is related with Cairo package/library.

Someone already/yet having had this issue? Are there workaround for that? Is there another way to cluster our dataset and subcluster it?

  1. https://github.com/jsychong/MetaboAnalystR
  2. https://www.dropbox.com/s/rchhnjg0gziwr2l/heatmap1dpi72.png?dl=0
  3. https://www.dropbox.com/s/rchhnjg0gziwr2l/heatmap1dpi72.png?dl=0

Best Wishes!

HeatMap Cairo Graphics Device Failed to create Cairo backend seqplots • 521 views
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