similar to: How to draw following plot in R?

I need to solve a equation like this : a = b/(1+x) + c/(1+x)^2 + d/(1+x)^3 where a,b,c,d are known constant. Is there any R-way to do that? Thanks in advance -- View this message in context: http://www.nabble.com/How-to-solve-following-equation--tp20785063p20785063.html Sent from the R help mailing list archive at Nabble.com.

Hi, suppose I have following codes : library(zoo); library(ggplot2) dat <- matrix(rnorm(500*2), 500); dat <- zooreg(dat, start = as.Date("01/01/01", "%m/%d/%y"), frequency=1); plot(dat) head(dat); month.no <- format(index(dat), "%m"); dat1 <- cbind(coredata(dat), as.numeric(month.no)) x <- dat1[,1]; y <- dat1[,2]; z <- dat1[,3] Now I draw a

Hi, I want find all roots for the following polynomial : a <- c(-0.07, 0.17); b <- c(1, -4); cc <- matrix(c(0.24, 0.00, -0.08, -0.31), 2); d <- matrix(c(0, 0, -0.13, -0.37), 2); e <- matrix(c(0.2, 0, -0.06, -0.34), 2) A1 <- diag(2) + a %*% t(b) + cc; A2 <- -cc + d; A3 <- -d + e; A4 <- -e fn <- function(z) { y <- diag(2) - A1*z - A2*z^2 - A3*z^3 - A4*z^4

Hi everyone, I have this kind of raw dataset : - <Temp diffgr:id="Temp14" msdata:rowOrder="13"> <Date>2005-01-17T00:00:00+05:30</Date> <SecurityID>10149</SecurityID> <PriceClose>1288.40002</PriceClose> </Temp> - <Temp diffgr:id="Temp15" msdata:rowOrder="14">

I was trying to dw data from Economagic [http://www.economagic.com/em-cgi/data.exe/libor/day-ussnon], using following code : library(fimport) dat2 = economagicSeries("libor/day-ussnon", frequency = "daily") Here I see that data is not complete, downloaded data starts from "2007-12-31 ", whereas actual data is available from 2001. secondly, how I convert that data

Hi all, Is there any process to conduct a search for a particular digit or letter in a ch. string? For example I want to make a search where 1st numeric figure appears in the string "asd123". Here the answer should be "4" Thanks, -- View this message in context: http://www.nabble.com/Searching-1st-number-within-a-ch.-string-tp25400580p25400580.html Sent from the R help

Hi all, is there any function to find some words in a character-string? For example suppose the string is : "gdfsa-sdhchc-88", now I want to find whether this string contains "sdhch". Is there any R function to do that? Regards, -- View this message in context: http://www.nabble.com/Searching-within-a-ch.-string-tp23484010p23484010.html Sent from the R help mailing list

I have a vector of letters like c("a", "B", "c"). Is there any R function to force all elements to lower-cap ? Thanks, -- View this message in context: http://old.nabble.com/How-to-make-all-elements-all-elements-lower-cap---tp26365794p26365794.html Sent from the R help mailing list archive at Nabble.com.

I also downloaded the rgl package (after reading recent Uwe Ligges' post) and installed in on my Win2k Pro sp2 machine. It seems to work with no problems. I ran most of the examples, including the hist3d one, and all of them worked fine. A couple of thoughts. I have administrative priviliges on my machine. Could this possible make a difference. The rgl library uses OpenGL. Is it a

Is there anyway to plot a matrix using a 3d bar plot. Something like bar3 in matlab? The example in demo hist3d does a 3d barplot for binned data, but has anyone tried something for a simple matrix with spaces betwen bars and axis labels using matrix dimnames or 1,2,3? stages<-letters[1:3] A<-matrix(c( 0.21, 0.21,0.03, 0.55, 0.58, 0.09, 1.30, 1.35, 0.22), nrow=3, byrow=TRUE,

I have a date-like-vector like : > date_file "10-02-2008" "10-03-2008" "10-06-2008" "10-07-2008" "10-09-2008" "10-10-2008" "10-13-2008" "10-14-2008" "10-15-2008" "10-16-2008" "10-17-2008" "10-20-2008" "10-21-2008" "10-22-2008" "10-23-2008"

Please, is there an R function /package that allows for 3D stairway plots like the attached one ? In addition, how can I overlay a parametric grid plot?? Thank you Maura Alice body {margin:0;padding:0;} #footer { height:13px; font-size:11px; font-family:Arial, FreeSans, sans-serif; color:#ADADAD; margin:0; padding:7px 12px; text-align:right; border-top:1px solid #dcdcdc; } #footer a {

Sorry to be off-topic. Can somebody please explain me what is Portmanteau test? Why it's name is like that? When I would say, a particular test is portmanteau test? I did some googling but got no satisfactory answer at all. Please anybody help for understanding that? Regards, -- View this message in context:

Is there any function in R to clear values from all variables stored in current and previous sessions? R site search do not give the desired result at all, all results are about to clear screen only not variables. Thanks, -- View this message in context: http://www.nabble.com/How-to-Clear-all-variables-stored-in-current-and-previous-sessions-tp20604724p20604724.html Sent from the R help mailing

Hi, Suppose I have following dataset : mat <- matrix(rnorm(100), 50) Now I want to put 2nd column in the place of 1st and 1st column in the place of 2nd. Is there any "quick" way to do that? Thanks and regards, -- View this message in context: http://www.nabble.com/Altering-columns-tp24099597p24099597.html Sent from the R help mailing list archive at Nabble.com.

Estimados usuarios de R: escribo porque tengo un problema con el paquete rgl que no puedo resolver desde hace un tiempo mi sessionInfo es. sessionInfo() R version 2.15.3 (2013-03-01) Platform: i686-pc-linux-gnu (32-bit) el problema específico es el siguiente: library(rgl) > demo(rgl) demo(rgl) ---- ~~~ Type <Return> to start : >

Please consider the following : > expand.grid(rep(list(c(1:3)), 3)) Var1 Var2 Var3 1 1 1 1 2 2 1 1 3 3 1 1 4 1 2 1 5 2 2 1 6 3 2 1 7 1 3 1 8 2 3 1 9 3 3 1 10 1 1 2 11 2 1 2 12 3 1 2 13 1 2 2 14 2 2 2 15 3 2 2 16 1 3 2 17 2 3 2 18

Can I ask a small stat. related question here? Suppose I have two predictors for a time series processes and accuracy of predictor is measured from MSEs. My question is, if two predictors give same MSE then, necessarily they have to be identical? Can anyone provide me any counter example? Thanks. -- View this message in context:

Hi, Could you help me to install the rgl package on Solaris 10 x86? I tried and got the following error messages. When I compiled my R as 64bit, I used the SUN ProW compilers. However, gcc seems to being used below as well as missing some information. Thank you in advance, Dongseok > install.packages("rgl") --- Please select a CRAN mirror for use in this session --- *

Can anyone point me towards a tutorial on using the rgl graphics package? Something with lots of examples would be nice. Thanks. Tom -- View this message in context: http://www.nabble.com/Tutorial-on-rgl-Graphics-tp18649114p18649114.html Sent from the R help mailing list archive at Nabble.com.