similar to: Is there a way to use CGIwithR in Windows?

Hello all, I am trying to solve a problem, and my solution is rather ugly and not very general. The posts for "[R] help with gsub and grep functions" seemed relevent and gave me hope for a more refined and more general solution. The Problem: line <- "'this text has spaces' 'thisNot' 3 4 5 6 7 8 9 10" bad.line <- "'this text has spaces'

Dear R-help: Does anyone know of a package in R that will do Welch's modified F-test for heterogeneous error variances? Are there other statistical techniques available in R that test the equality of means when homoscedastisity is violated? 't.test' does this in the pairwise sense when var.equal = TRUE. With best wishes and kind regards I am Sincerely, Corey A. Moffet Support

The funciton c() works differently for strings and for factors: For strings: > l = c('a', 'b') > l [1] "a" "b" For factors: > l = c(factor('a'), factor('b')) > l [1] 1 1 What should be the right technique for merging factors? -- Svetlana Eden Biostatistician II School of Medicine

Dear R-Help, I have a generated file that looks like the following: ----- Begin file ----- # # Output File # float Version 2002.700000000000 int Numdays 31 int NumOFEs 1 # # Hillslope-specific variables # char HillVarNames[ 3 ] {Days In Simulation} {Hillslope: Precipitation (mm)}

Is there a function in R, which would return index of maximum value in a vector ? e.g. > v <- round(10*rnorm(8)) > v [1] 6 -3 -6 15 7 9 0 -19 > max(v) [1] 15 ??? index.max(v) ??? 4

I am having difficulty with plot.formula. For example: ------------------- dat <- data.frame(y = c(1,1,1,2,2,2,3,3,3,4,4,4), x1 = as.ordered(c(1,1,1,1,1,1,2,2,2,2,2,2)), x2 = as.ordered(c(1,1,1,2,2,2,1,1,1,2,2,2))) plot(y ~ x1 + x2, data = dat) # Works fine "interactively" asking: # "Hit <Return> to see next plot:" #

Dear R-help, Does any one know of a function/package in R that will test the assumption of spericity in a split-plot analysis of variance? How are people dealing with this issue in R? With best wishes and kind regards I am Sincerely, Corey A. Moffet Support Scientist University of Idaho Northwest Watershed Research Center 800 Park Blvd, Plaza IV, Suite 105 Boise, ID 83712-7716 (208) 422-0718

Dear alltogether, I want to use CGIwithR in conjunction with R2HTML. A small example called 'test.R': ##### #! /usr/bin/R invisible(capture.output(library(R2HTML))) HTML(summary(as.numeric(scanText(formData$numbers))), file=stdout()) ##### The script gets its input via 'CGIwithR.cgi' and contains the variable "numbers." The 'HTML' output (-> summary() in

Hello, I'm a newcomer to R so please forgive me if this is a silly question. It's that I have a linear regression: fm <- lm (x ~ y) and I want to test whether the slope of the regression is significantly less than 1. How can I do this in R? I'm also interested in comparing the slopes of two regressions: fm1 <- lm (x ~ y) fm2 <- lm (a ~ b) and asking if the slope of fm1 is

<headline>Short question</headline>: Do people have advice on debugging R programs running after CGIwithR inputting of data from forms? Is there a way of setting up fast local versions if your local machine has to be a windoze (2k) machine (R 2.1.0) and your server is a Debian, ssh shell only set up running R 1.8.0? Are there simple guides to ways of not having to invoke R each

I know that there must be a cool way of doing this, but I can't think of it. Let's say I have an dataframe with NA's. > x <- data.frame(a = c(0,1,2,NA), b = c(0,NA,1,2), c = c(NA, 0, 1, 2)) > x a b c 1 0 0 NA 2 1 NA 0 3 2 1 1 4 NA 2 2 > I know it is easy to replace all the NA's with zeroes. > x[is.na(x)] <- 0 > x a b c 1 0 0 0 2 1 0 0 3 2 1

Hi, I have a (maybe stupid) question... Does CGIwithR package can be installed in R for Windows to work with a Microsoft IIS web-server? Or I need other libraries? Thank you, Gianluca.

Hello This is a very newbie question on R syntax, but I do not find the answer.... I want to make a selection on an interval say choose Xint in the interval of temperatures 390-399 I tried this syntax Xint<- X[t>=390 && t< 400] typing >XintI get the answer numeric(0) it did not select any object! 'though I verified that there indeed are occrencies of X in this

Hi, I am having trouble to make the CGIwithR work in my server (Linux RedHat 7 - Apache), I installed the package, edited the R.cgi archive, but when I try to run any script from the browser I receive the following: Error message: Premature end of script headers: trivial.R Need I change some configuration of my system so that scripts work? Cris

Dear R users; I'm trying to use CGIwithR on a linux machine, I have followed the instructions on the package manual but still it does not run, the message that I get is as follows: The requested URL was not found on this server I used the example trivial, I put trivial.html under Web directory and trivial.R in cgi-bin directory, which itself is a subdirectory of Web directory, ( I have

I'm sure this is a total noob question, but half an hour of searching bore no fruit: How do you select a subset of a vector by negative value? If I try > hist(sp$p[sp$r>0.01]) # all is well > hist(sp$p[sp$r<-0.01]) # this obviously causes issues Also, putting -0.01 in parentheses didn't help. Thanks in advance -- b

Full_Name: Corey A. Moffet Version: 1.8.1 OS: Windows 2000 and RHL 9 Submission from: (NULL) (199.133.140.156) The function model.tables.aov and perhaps other model.tables methods refer the user to use the function se.contrasts when the design is unbalanced. The function name is se.contrast (singular).

Hi I wrote a function implementing an algoritm for simulation of spatial sampling plans (using geoR). I'm using a range of parameters to perform several simulation and sometimes this parameters create function errors wich cause the algoritm to stop. How can I avoid this ? Below there's a small example that I made to study the problem but I was not able to solve it. I've tried

Hi, Does anyone know how to manually configure the number of digits printed out from xtable()? For example, I'm exporting a data frame through xtable() into a LaTeX table, I only have two columns in the data frame so by default I only get two decimal places. But I'd like at least 5 decimal places. I had a look at ?xtable() but can't seem to find an example. Cheers, Kevin

Probably a stupid question, but I don't seem to be able to find the answer I'm looking for from any of the R literature. Basically I have a matrix with several thousand rows and 20 columns(weather stations) of wind direction data. I am wanting to extract a matrix which contains data for all columns conditional on column 20 having a value of _either_ less than 45 or greater than 315. (ie I