Re: [R] Quantile question

2010-10-07 Thread Henrik Bengtsson
Alternatively, see rowQuantiles() in the matrixStats package. /Henrik On Wed, Oct 6, 2010 at 10:34 PM, Joshua Wiley wrote: > Hi, > > This should do it, for details, see ?apply > > a <- matrix(rnorm(1),100,100) > t(apply(a, 1, quantile, probs = c(.3, .5))) > > Basically you apply() the quant

Re: [R] Quantile question

2010-10-06 Thread Joshua Wiley
Hi, This should do it, for details, see ?apply a <- matrix(rnorm(1),100,100) t(apply(a, 1, quantile, probs = c(.3, .5))) Basically you apply() the quantile function to each row (the 1, 2 would indicate columns) in the object 'a'. HTH, Josh On Wed, Oct 6, 2010 at 10:20 PM, Takos wrote: >

[R] Quantile question

2010-10-06 Thread Takos
Simple Question I have 100x100 matrix and I want to calculte each row's 30,50% quantile ex) a=matrix(rnorm(1),100,100) quantile(a[1,],c(0.3,0.5)) quantile(a[2,],c(0.3,0.5)) . . . . I want get results at once. so I try quantile(a[1:100,],c(0.3,0.5)) but I can get what I exactly want. How

Re: [R] quantile question

2009-01-22 Thread ANJAN PURKAYASTHA
Thanks all for your prompt and helpful replies! Anjan On Thu, Jan 22, 2009 at 11:52 AM, ANJAN PURKAYASTHA < anjan.purkayas...@gmail.com> wrote: > Hi, > A simple quantile question: > I need to calculate the 95% and 5% quantiles (aka percentiles) for the > following data: > 67.12 > 64.51 > 62.06 >

Re: [R] quantile question

2009-01-22 Thread Dimitris Rizopoulos
have a look at the online help file of ?quantile(); check also: x <- c(67.12, 64.51, 62.06, 55.45, 51.41, 43.78, 10.74, 10.14) sapply(1:9, function (i) quantile(x, c(0.05, 0.95), type = i)) I hope it helps. Best, Dimitris ANJAN PURKAYASTHA wrote: Hi, A simple quantile question: I need to ca

Re: [R] quantile question

2009-01-22 Thread Greg Snow
> -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of ANJAN PURKAYASTHA > Sent: Thursday, January 22, 2009 9:52 AM > To: r-help@r-project.org > Subject: [R] quantile question > > Hi, > A simple quantile question: &

[R] quantile question

2009-01-22 Thread ANJAN PURKAYASTHA
Hi, A simple quantile question: I need to calculate the 95% and 5% quantiles (aka percentiles) for the following data: 67.12 64.51 62.06 55.45 51.41 43.78 10.74 10.14 if I use the formula: 95% quantile point= 95 (8+1)/100, I get the 8.55th point as the 95% quantile. Which does not make too much se