similar to: Help with time in R

Hello All, I cant seem to do a trig regression in R. The equation is as follows : y = a+b*(sin((2*pi*x/360) - c))^2 a, b, c are coefs that I want. y, x are input vectors. The equation I put into R: lm(y ~ sin(2*pi*x/360)^2) This equation is missing the c and I dont get the right answer. Also, I dont know how to plot the lm over the x values instead of the indices. Any help is sincerely

Hello all, I recently installed rpy2 so that I could use R through Python. However, R was not recognized in the command line. So I decided to add it to the PATH variables. But it just doesnt work.... And what I mean by it doesnt work is : No matter what I type at the prompt in DOS- be it R, Rcmd, R CMD, Rscript- it is not recognized as a command. Path variables used : 1. %R_HOME% -->

Hello All, Does anyone know how to download historical LIBOR rates of different currencies into R? Or if anyone knows of a website that holds all this data...I only need up to january of 2000. Also, how can we make the row names the index of a plot (the names of the x values)? [[alternative HTML version deleted]]

Hey everyone, I hope this finds you in good cheer. I just have a quick question: What is the function that outputs the p-value for correlation? cor(x,y) only provides the R value. I would like the p-value associated with it. Thank you all for your help! [[alternative HTML version deleted]]

Guys, I wrote to the finance mailing list earlier with my questions but was directed here. Sorry for the repeat. --------------- library(quantmod) .... now <- Sys.time() midnight <- strptime() # <---- I want to make this a static variable that will be equal to 12:00:00 am but I dont know what to put here. I keep getting NA for everything I do if(now == midnight) {

Hi, When I plot a scatter plot, R automatically only gives the years on the x-axis. How can I make R also show the months on the x-axis? Thank you very much! [[alternative HTML version deleted]]

Hello, I just received thes odd messages from HP-UX Secure Shell A.03.50.000. (OpenSSH 3.5p1): # ssh-add id_rsa.pub 5215: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 5215: @ WARNING: UNPROTECTED PRIVATE KEY FILE! @ 5215: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 5215: Permissions 0644 for 'id_rsa.pub' are too open. 5215: It is

Hi to all, i'm trying run a app on wine installed on Centos 5.4 I386, its call DCTF 1.8, Its a Brazilian government program. The install it's ok, no problem but when i go run the App, its tell me i need the Ms Sans Serif Install, and install the 'Font' from 'Control Painel'. I try copy the file mssans.ttf to the c:/windows/fonts or the files .fon, Already try to

Hi, > dd <- data.frame(A=c("b","c","a"), B=3:1) > dd A B 1 b 3 2 c 2 3 a 1 > unlist(dd) A1 A2 A3 B1 B2 B3 2 3 1 3 2 1 Someone else might get something different. It all depends on the values of its 'stringsAsFactors' option: > dd2 <- data.frame(A=c("b","c","a"), B=3:1, stringsAsFactors=FALSE) > dd2

Hello, I recently updated LLVM from version 6.0.0 to 10.0.0. I see the following issue when I compile an application only with code coverage compiler options. Thes issue does not appear in any other build type. *...:(__llvm_prf_data[__profv__**ZNK4llvm3cfg6UpdateIPNS_**10BasicBlockEE4dumpEv]+0x18): **undefined reference to `llvm::cfg::Update<llvm::**BasicBlock*>::dump() const'* I see

Hello list, I am trying to apply the paired t.test between diseased and not diseased patients to identify genes that are more expressed in the one situation under the other. In order to retrieve the genes that are more expressed in the positive disease state I do: p.values<-c() for(i in 1:length(Significant[,1])){ p.values[i]<-try(t.test(positive[i,],negative[i,],alternative

Dear all, I am new R user and I am sure that this question has been asked quite often and I have also googled it and read about it! I understood that in order to read excel sheet into R you need to open it and saved it as csv or text, is this true? or you can use read.delim2 and read.csv2 to do this without the following error > dat <- read.csv2(file="C:\\Dokumente und

Folks, I have a very basic question. The solution eludes me perhaps because of my own lack of creativity. I am not attaching a fully reproducible session because the issue may well be becuase of the way the data file is, and the data file is large (and I don't know whether I can legally distribute it). If people can suggest things that might be wrong in my data or the way that I am reading it,

Sometime in Feb, yum updated something to do with ca-bundle. I didn't notice at the time, but it put these two files on my machine: /etc/pki/tls/certs/ca-bundle.trust.crt.rpmnew and /etc/pki/tls/certs/ca-bundle.crt.rpmnew Both of those on the existing system are symbolic links ca-bundle.trust.crt -> /etc/pki/ca-trust/extracted/openssl/ca-bundle-trust.crt and ca-bundle.crt ->

Hello. I tried to get the trip count of a loop with Scalar evolution. I got inspired from http://stackoverflow.com/questions/13834364/how-to-get-loop-bounds-in-llvm . However the analysis described there doesn't work well for the second inner loop of thes function below (although if we declare Bcols a short it works well): void MatMul(int Arows, int Acols, int Brows, int

I have samba set up as primary domain controller, and have problems with my Windows XP SP2 machines. Logging in is quick, but most of the time (nine out of ten times) the logout process takes a long time - I do end up rebooting, but once I let it stay and it took a whole hour before it was logged out. It seems to act the same way for all users. Possible sources already eliminated: - I have

So, a friend pointed me to the patch for sock.c:533, and that patch went a LONG way in fixing the streaming problems I've been experiencing (on solaris 8/sparc.) Thanks so much for that! Now, I think that *sending* the stream is now squared away, but I think one problem remains on the receiving end of things. I use the perl streamcast utility to stream my playlists, and tracks sound great.

Dear R-users, When I tried to import a text file (tab delimited) which has 2000+ rows with the following command (With the importData in S, it works though), x <- read.table(textfile, sep= "\t", skip=5, stringAsFactors=F) I received the following warning message: Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,: number of items read is not a multiple of

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Hi... I have to use R to find out the 90% confidence-interval for the sensitivity and specificity of the following diagnostic test: A particular diagnostic test for multiple sclerosis was conducted on 20 MS patients and 20 healthy subjects, 6 MS patients were classified as healthy and 8 healthy subjects were classified as suffering from the MS. Furthermore, I need to find the number of MS