Hi Hatef, I think you need to smooth the histogram with a uniform or other kernels such as Gaussian distribution (look up kernel density estimation). Matlab has a function "ksdensity" that does it, but honestly I have never used it. Or if you are familiar with R, you can use it too.
Best, Xiaoyi On Wed, Mar 9, 2011 at 7:00 PM, Hatef Monajemi <[email protected]>wrote: > Dear All, > > > I have a question on Matlab and I appreciate if any of you could comment on > this if you have prior experience in what I want. > > I have bunch of scalar data and I need to sketch the PDF of it. I am > familiar with "hist" and "bar" functions in Matlab where basically you > create some bins and put the data in there. However, I would want to draw > only a curve that represent pdf and do not need the "bars"...In other words, > I need to draw a curvilinear line that joins the top of these bars (in some > sense)...Any idea on this would be much appreciated. any Matlab function? > > To clarify what I mean, I also attached a jpg image (I want the form on the > left not on the right in that picture) > > Bests, > Hatef > -------------- > Hatef Monajemi > PhD Student > Environmental Fluid Mechanics and Hydrology > Department of Civil and Environmental Engineering > Stanford University > 473 Via Ortega, Y2E2 Bldg, Room M25 > Stanford, CA 94305 > Email: [email protected] > Web: http://www.stanford.edu/~monajemi/ > > > -- > Mailing list: https://launchpad.net/~stanford-imaging > Post to : [email protected] > Unsubscribe : https://launchpad.net/~stanford-imaging > More help : https://help.launchpad.net/ListHelp > > -- Xiaoyi Liu Department of Civil and Environmental Engineering Stanford University EFML 161, Yang & Yamasaki Environment & Energy Building - 4020 473 Via Ortega Stanford, CA 94305 www.stanford.edu/~shawnliu
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