Re: [R] Histogram to KDE

2012-09-05 Thread firdaus.janoos
On Fri, Aug 31, 2012 at 12:15 PM, David L Carlson wrote: > Using a data.frame x with columns bins and counts: > > x <- structure(list(bins = c(3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, > 11.5, 12.5, 13.5, 14.5, 15.5), counts = c(1, 1, 2, 3, 6, 18, > 19, 23, 8, 10, 6, 2, 1)), .Names = c("bi

[R] Histogram to KDE

2012-08-31 Thread firdaus.janoos
Hello, I wanted to know if there was way to convert a histogram of a data-set to a kernel density estimate directly in R ? Specifically, I have a histogram [bins, counts] of samples {X1 ... XN} of a quantized variable X where there is one bin for each level of X, and I'ld like to directly get a kd

Re: [R] ggplot does not show in knitr

2012-08-03 Thread firdaus.janoos
Hi Michael, Thanks a lot - enclosing the qplot in a print() worked perfectly ! Regards, -fj On Thu, Aug 2, 2012 at 7:37 PM, R. Michael Weylandt < michael.weyla...@gmail.com> wrote: > On Thu, Aug 2, 2012 at 6:30 PM, Dennis Murphy wrote: > > On Thu, Aug 2, 2012 at 1:38 PM, Michael Weylandt > >

Re: [R] ggplot does not show in knitr

2012-08-02 Thread firdaus.janoos
> > On Aug 2, 2012, at 2:37 PM, "firdaus.janoos" > wrote: > > > Hello, > > > > I'm having some issues getting a ggplot figure to show up in the knitr > > output, when placed in a loop. > > > > Specifically, I have a loop inside a knit

[R] ggplot does not show in knitr

2012-08-02 Thread firdaus.janoos
Hello, I'm having some issues getting a ggplot figure to show up in the knitr output, when placed in a loop. Specifically, I have a loop inside a knitr chunk : ```{r fitting, warning=FALSE, fig.width=10, fig.height=10, fig.keep='high'} for (t in 1:T) { # do a regression of tgt.vals ~ predi

[R] Computing inverse cdf (quantile function) from a KDE

2012-07-11 Thread firdaus.janoos
Hello, I wanted to know if there is a simple way of getting the inverse cdf for a KDE estimate of a density (using the ks or KernSmooth packages) in R ? The method I'm using now is to perform a numerical integration of the pdf to get the cdf and then doing a search for the desired probablity valu