stanford-imaging team mailing list archive

[Xiaoyi Liu <liuxiaoyi@xxxxxxxxx>]

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 <monajemi@xxxxxxxxxxxx>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: monajemi@xxxxxxxxxxxx
> Web: http://www.stanford.edu/~monajemi/
>
>
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-- 
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