Re: [R] Inverse function using FDA

2013-03-06 Thread zoe richards
I am trying to register unemployment rate and inverse of inflation rate to investigate the phillips curve by looking at the resulting warping function. On Wed, Mar 6, 2013 at 5:17 PM, Peter Ehlers wrote: > On 2013-03-06 12:54, zoe richard

Re: [R] Inverse function using FDA

2013-03-06 Thread Peter Ehlers
On 2013-03-06 12:54, zoe richards wrote: Hi, Does anyone know how (or whether or not it's possible) to output an inverse of a functional object? I haven't found a way, but since derivatives etc. can be computed using the "fda" package it seems like this should be possible using this package or

[R] Inverse function using FDA

2013-03-06 Thread zoe richards
Hi, Does anyone know how (or whether or not it's possible) to output an inverse of a functional object? I haven't found a way, but since derivatives etc. can be computed using the "fda" package it seems like this should be possible using this package or another designed for functional data analys

Re: [R] inverse function of melt

2010-06-18 Thread Henrique Dallazuanna
Try this: xtabs(value ~ YEAR + variable, x) On Fri, Jun 18, 2010 at 10:39 AM, n.via...@libero.it wrote: > > Dear list, > I'm looking for an inverse function of melt(which is in package > reshape).Namely, I had a data frame like this > (Table1) > > YEAR VAR1 VAR2 VAR3 > 1995 7

Re: [R] inverse function of melt

2010-06-18 Thread Joris Meys
http://had.co.nz/reshape/ please, do at least some effort before you post a question, so people don't have to point out that your question can easily be solved by reading the f*cking manual. cheers Joris On Fri, Jun 18, 2010 at 3:39 PM, n.via...@libero.it wrote: > > Dear list, > I'm looking fo

Re: [R] inverse function of melt

2010-06-18 Thread Steven McKinney
Subject: [R] inverse function of melt Dear list, I'm looking for an inverse function of melt(which is in package reshape).Namely, I had a data frame like this (Table1) YEAR VAR1 VAR2 VAR3 1995 7 3 45 1996 5 632 1997 6 10

[R] inverse function of melt

2010-06-18 Thread n.via...@libero.it
Dear list, I'm looking for an inverse function of melt(which is in package reshape).Namely, I had a data frame like this (Table1) YEAR VAR1 VAR2 VAR3 1995 7 3 45 1996 5 632 1997 6 10 15 I transformed my data by using th

Re: [R] inverse function of SSlogis

2010-03-29 Thread Kay Cichini
hello gabor, thanks a lot for that. i'll try. best wishes, kay -- View this message in context: http://n4.nabble.com/inverse-function-of-SSlogis-tp1694995p1695061.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org

Re: [R] inverse function of SSlogis

2010-03-29 Thread Gabor Grothendieck
Try this. More info at http://ryacas.googlecode.com : > library(Ryacas) > Asym <- Sym("Asym"); xmid <- Sym("xmid"); scal <- Sym("scal") > x <- Sym("x"); y <- Sym("y") > Solve(Asym/(1+exp((xmid-x)/scal))==y, x) expression(list(x == xmid - log(Asym/y - 1) * scal)) On Mon, Mar 29, 2010 at 7:24 AM

[R] inverse function of SSlogis

2010-03-29 Thread Kay Cichini
hello, is there a more convenient way to get the inverse of SSlogis than transforming the function by hand? thanks, kay -- View this message in context: http://n4.nabble.com/inverse-function-of-SSlogis-tp1694995p1694995.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] Inverse function

2010-02-25 Thread Greg Snow
2010 2:31 PM > To: Bert Gunter > Cc: r-help > Subject: Re: [R] Inverse function > > This is not a homework problem. > > How to solve numerically for y from f(y,r) - a=g(y)=0? I am not too > sure. > > Thanks! >Hannah > > > 2010/

Re: [R] Inverse function

2010-02-24 Thread li li
; > > Bert Gunter > Genentech Nonclinical Biostatistics > > -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On > Behalf Of li li > Sent: Wednesday, February 24, 2010 12:46 PM > To: r-help > Subject: [R] Inverse

Re: [R] Inverse function

2010-02-24 Thread Bert Gunter
To: r-help Subject: [R] Inverse function Hi all, I have a function like the following: f <- function(r, y){r/(2*pi)*exp(1)^(-y)*(1+r*(y/2)+r^(2)*(y-1)^(2)/6)} For fixed r, I want to find the inverse funtion in terms y. In other words, for fixed r, if the value of the function is given,

[R] Inverse function

2010-02-24 Thread li li
Hi all, I have a function like the following: f <- function(r, y){r/(2*pi)*exp(1)^(-y)*(1+r*(y/2)+r^(2)*(y-1)^(2)/6)} For fixed r, I want to find the inverse funtion in terms y. In other words, for fixed r, if the value of the function is given, I want to find the corrsponding y value th