Thanks Richard! ----------------Contact Details:------------------------------------------------------- Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English) ----------------------------------------------------------------------------------------------
On Mon, May 23, 2011 at 5:56 PM, <richard.cot...@hsl.gov.uk> wrote: > > > In order to do this I can use the relation between count and density, but > I > > would like to know if there is a way for me to predict it upfront. > > In the code for hist.default, you'll see the line > > dens <- counts/(n * diff(breaks)) > > > Here is an example: > > > > set.seed(242) > > z = rnorm(30) > > hist_z <- hist(z) > > hist_z$counts / hist_z$density # the relation is 15 > > In your example, n is 30, and the breaks are evenly spaced every 0.5. > > Regards, > Richie. > > Mathematical Sciences Unit* > **HSL* <http://www.hsl.gov.uk/contact-us.htm>* > **4D Pie Charts* <http://4dpiecharts.com/> > > ------------------------------ > *ATTENTION:* > > This message contains privileged and confidential information intended for > the addressee(s) only. If this message was sent to you in error, you must > not disseminate, copy or take any action in reliance on it and we request > that you notify the sender immediately by return email. > > Opinions expressed in this message and any attachments are not necessarily > those held by the *Health and Safety Laboratory <http://www.hsl.gov.uk/>*or > any person connected with the organisation, save those by whom the > opinions were expressed. > > Please note that any messages sent or received by the *Health and Safety > Laboratory <http://www.hsl.gov.uk/>* email system may be monitored and > stored in an information retrieval system. > > ------------------------------ > Think before you print - do you really need to print this email? > ------------------------------ > > ------------------------------ > > Scanned by *MailMarshal* - Marshal's comprehensive email content security > solution. Download a free evaluation of MailMarshal at www.marshal.com > > ** > ------------------------------ > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
