Hello all, I have two histograms, I want to overplot both, but y-axis scaling of these two histograms are very different such that when I am overploting them the feature of one is completely getting suppressed. So someone advised me plot normalized histograms, can any one suggest me how to do that in IDL??

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12/14/2016 4:10:58 AM

On 12/14/2016 05:10 AM, priyamalik484@gmail.com wrote: > I have two histograms, I want to overplot both, but y-axis scaling of > these two histograms are very different such that when I am > overploting them the feature of one is completely getting suppressed. > So someone advised me plot normalized histograms, can any one suggest > me how to do that in IDL?? Hi, h1=histogram(...) h2=histogram(...) hn1=h1/total(h1) hn2=h2/total(h2) b1=barplot(hn1,index=0,nbars=2) b2=barplot(hn2,index=1,nbars=2,fill_color='b',overplot=b1) for more details on formating, see http://www.harrisgeospatial.com/docs/barplot.html or alternatively if you don't need the normalization and just want to fit both histograms with appropriate scales into the same graphics b3=barplot(h1,index=0,nbars=2,yrange=[0,max(h1)*1.1]) b4=barplot(h2,index=1,nbars=2,yrange=[0,max(h2)*1.1], $ overplot=b3,fill_color='b') a2=axis('y',target=b4,location=right,textpos=1,color='b',showtext=1) for details on additional axes, see http://www.harrisgeospatial.com/docs/AXIS.html Both versions are not tested, but should at least give you an idea how to proceed. Good luck, Markus

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12/15/2016 2:16:47 PM