Charles: To be fair ... both histograms and densityplots are nonparametric density estimators whose appearance and effectiveness are dependent on various parameters. Neither are immune from misleading due to a poor choice of the parameters. For histograms they are the bin boundaries; for kde's and friends it is some version of bandwidth.
-- Bert > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Charles Annis, P.E. > Sent: Thursday, June 08, 2006 7:17 PM > To: 'Justin Ashmall'; r-help@stat.math.ethz.ch > Subject: Re: [R] Re-binning histogram data > > Concerning the several comments on your note relating to > histograms, an > informative and entertaining illustration, using Java, of how your > subjective assessment of the data can change with different histograms > constructed from the same data, is provided by R. Webster > West, recently > with the Department of Statistics at the University of South > Carolina, but > as of May 2006 with the Department of Statistics at Texas A & > M University, > http://www.stat.sc.edu/~west/javahtml/Histogram.html and > http://www.stat.tamu.edu/~west/ > > > Charles Annis, P.E. > > [EMAIL PROTECTED] > phone: 561-352-9699 > eFax: 614-455-3265 > http://www.StatisticalEngineering.com > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Justin Ashmall > Sent: Thursday, June 08, 2006 5:46 AM > To: r-help@stat.math.ethz.ch > Subject: [R] Re-binning histogram data > > Hi, > > Short Version: > Is there a function to re-bin a histogram to new, broader bins? > > Long version: I'm trying to create a histogram, however my > input-data is > itself in the form of a fine-grained histogram, i.e. numbers > of counts > in regular one-second bins. I want to produce a histogram of, say, > 10-minute bins (though possibly irregular bins also). > > I suppose I could re-create a data set as expected by the > hist() function > (i.e. if time t=3600 has 6 counts, add six entries of 3600 to a list) > however this seems neither elegant nor efficient (though I'd > be pleased to > be mistaken!). I could then re-create a histogram as normal. > > I guessing there's a better solution however! Apologies if > this is a basic > question - I'm rather new to R and trying to get up to speed. > > Regards, > > Justin > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
