Re: histograms of identical distribution is different. maybe binnumber is the problem?

*To*: mathgroup at smc.vnet.net*Subject*: [mg51386] Re: [mg51298] histograms of identical distribution is different. maybe binnumber is the problem?*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Fri, 15 Oct 2004 02:48:12 -0400 (EDT)*Reply-to*: hanlonr at cox.net*Sender*: owner-wri-mathgroup at wolfram.com

Use the HistogramScale option Needs["Statistics`NormalDistribution`"]; Needs["Graphics`Graphics`"]; Do[ normdata=RandomArray[NormalDistribution[],10000]; normdata2=RandomArray[NormalDistribution[],10000]; DisplayTogether[ Histogram[normdata,BarEdgeStyle->Hue[0], BarStyle->{}, HistogramScale->1], Histogram[normdata2,BarStyle->{}, HistogramScale->1]], {i,10}] Bob Hanlon > > From: sean kim <sean_incali at yahoo.com> To: mathgroup at smc.vnet.net > Date: 2004/10/14 Thu AM 06:35:12 EDT > Subject: [mg51386] [mg51298] histograms of identical distribution is different. maybe binnumber is the problem? > > i found the code attached below in the archives. it > will display two histograms without shading in one > graph. > > note both histograms are generated exactly the same > way using exactly the same number of sample points. > > for me, at least, it will show a pattern of a few of > the distributions having a lower number of points > about the mean. > > what causes this? I think it has to do with the way > histograms are made? is there a way to control bin > width or number in a convenient way? > > like.. > > binwidth-> (numberof points)/(whatever bin number you > want to use) > > Do[ > normdata = RandomArray[NormalDistribution[], 10000]; > h1 = Histogram[normdata, BarEdgeStyle -> Hue[0], > BarStyle -> {}, DisplayFunction -> Identity]; > > normdata2 = RandomArray[NormalDistribution[], 10000]; > h2 = Histogram[normdata2, BarStyle -> {}, > DisplayFunction -> Identity]; > > DisplayTogether[h1, h2], > > {i, 10}] > > > > > > > > __________________________________ > Do you Yahoo!? > Y! Messenger - Communicate in real time. Download now. > http://messenger.yahoo.com > >