similar to: deriv value

Windows98, Emacs20.7, ESS5.1.18 I recently constructing a data.frame "belle" that now does not spew its contents when I type the name on the command line (see errors below). It will only do so if I specify columns. Incidently, plot(belle) displays the pairs plot of all variables. > belle Error in as.data.frame.default(x[[i]], optional = TRUE) : can't coerce array into a

I am running R 1.2.3 with ESS5.1.18 with Windows 98. I am trying to use lsoda in the odesolve apckage and am having problems. Question: The return value of the function of the system of ode's has to be a list that includes first, the ode's and second, "a vector (possibly with a `names' attribute) of global values that are required at each point in `times'." I

(windows 98, R 1.2.3, ESS 5.1.18, nlme 3.1 from CRAN) Dear R users, I am trying to follow Pinheiro and Bates book ("Mixed-Effects Models in S and S-PLUS"). I downloaded the nlme package from CRAN, and unzipped all the data and help files. Unfortunately, I cannot generate the figures in the book. For instance, their appears to be no plot.design or intervals plotting functions. Have these

How does one turn a character string back into an object? I would like to take character strings and use them as objects, a process that I think is the reverse of deparse( substitute(X)). E.g., I would like to get the variable names from the fourth object listed with objects(), something like names(objects()[4]), but of course that doesn't work. Thanks Henry Dr. M. Henry H. Stevens

Running R 1.2.3, Windows 98 I checked the archives, and I couldn't find anything pertaining to this: How do I control format (scientific notation versus decimal, e.g.) on tick labels? TIA, Henry Dr. M. Henry H. Stevens Postdoctoral Associate Department of Ecology, Evolution, & Natural Resources 14 College Farm Road Cook College, Rutgers University New Brunswick, NJ 08901-8551 email:

Dear R folks, (Running Windows 98, Pentium II, 128 Mb RAM) I have been using Splus 2000 for about 1.5 years, and have recently begun using R. I love the Open Source philosophy! I may be switching to to Linux soon. My question: How do people most often interact with R? In Splus 2000, I used "Script" windows to write functions. "Script" windows were great because: 1..

Hello, I am interested in generating a compact letter display for the results of Tukey HSD tests that contain interaction effects. The 'cld' method in the 'multcomp' package seems only to work for main effects. Does such a thing exist already? Thank you for any thoughts, Josh -- Joshua Caplan, PhD Postdoctoral Associate Department of Ecology, Evolution, and Natural Resources

Quick question. How important are these? Are the errors recoverable and not a big deal, or are they actually a problem? I see a few of these randomly over the course of the day. Jan 15 10:04:04 gehenna13.rutgers.edu dovecot: IMAP(user): unlink(/rci/nqu/rci/u8/user/dovecot/.such and such maildir/.nfs00000000001e951000002b8d) failed: Device or resource busy Jan 15 10:04:04 gehenna13.rutgers.edu

Hi, I'm trying to load .csv file into R (3790 by 30). I'm having an odd difficulty. After I type: read.csv("niwage.csv", header = TRUE) the data appears on the screen. The last thirty or so observations appear on the screen and they have been read in correctly. However, when I type: dim(data) I see: NULL This seems odd to me--R seems to be recognizing the data but not

Hi all, I am have an R script that makes many plots, and I would like to string them into a movie file. To do that I have to save all of my plots as jpegs or gifs. I don't want to go through all of my plots and save them by hand though. Is there a way to automate saving the plots as a gif or a jpeg so I can string them into a movie? Thanks in advance Matt Oliver

I'm not sure how useful this is with optimization turned back on, but here it is anyway. This was just a one off that happened last night: Jan 27 20:49:05 gehenna17.rutgers.edu dovecot: IMAP(user): fscking index file /rci/nqu/rci/u2/user/dovecot/.INBOX/dovecot.index Jan 27 20:49:05 gehenna17.rutgers.edu dovecot: IMAP(user): Panic: file mail-transaction-log-view.c: line 108

Hi, Can you add the following two publications from our group to the LLVM publications page. - *Alive-FP: Automated Verification of Floating Point Based Peephole Optimizations in LLVM [pdf] <http://www.cs.rutgers.edu/~santosh.nagarakatte/papers/alive-fp-sas16.pdf> *David Menendez, Santosh Nagarakatte, and Aarti Gupta *To Appear in the Proceedings of the 23rd Static Analysis

I have a data set of many rows and many columns in which both the rows and the columns have associated grouping factors. Is there a way to do what 'aggregate' does but in the other dimension? The way I have been doing this is to use 'aggregate' on the data in the usual way and then rotate the result and apply 'aggregate' again. This works but is a little messy and I was

Dear R-help list, I am attempting to understand the proper formulation of ANCOVA's in R. I would like to test both parallelism and intercept equality for some data sets, so I have generated an artificial data set to ease my understanding. This is what I have done #Limits of random error added to vectors min <- -0.1 max <- 0.1 x <- c(c(1:10), c(1:10))+runif(20, min, max) x1 <-

LLVM developers, Can you add the following paper to the publication list? "Formal Verification of SSA Optimizations for LLVM" Jianzhou Zhao, Santosh Nagarakatte, Milo M K Martin and Steve Zdancewic Proceedings of the 34th ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI) 2013 link to ACM DL:

Dear Help List, My name is Matt Oliver. I have been using R for about a year and find it very helpful. However, I have a need for a function that I cannot find. I am not very good at programming so I thought I would ask the group. I have an irregular grid of data (x = Longitude, y = Latitude). Each pair of my x,y has a categorical value. Obviously linear or any other numerically based

Dear R-users, I am trying to develop a function that takes another function as an argument, changes its default values and returns a list of things, among which the initial function with its default arguments changed. An example of what i will like to obtain below: ## initial function myfun <- function(x, a=19, b=21){ return(a * x + b) } ## this is the function i will like to create ##

I am new to R and am having difficulty merging 2 data sets, both of which have the same 30 variables and about 2,000 records. I've looked high and low—Paul Johnson's help page, through some of the 5,420 (yikes!) results for “merge” on the R list archives, and google searches—and I'm getting nowhere, so I thought I'd ask. When I try to merge by the ID variable: >

Martin, Well, thanks for jumping in! We need all the help we can get ;) I changed the execute bit as you suggested and recompiled, no luck, still the same error message. Below is the output you wanted me to look at, its a bit beyond me so I include both a brief grep summary and then the whole enchilada. I do note that my output is different from yours, but I'm not sure how to interpret. I

Martin, Well, thanks for jumping in! We need all the help we can get ;) I changed the execute bit as you suggested and recompiled, no luck, still the same error message. Below is the output you wanted me to look at, its a bit beyond me so I include both a brief grep summary and then the whole enchilada. I do note that my output is different from yours, but I'm not sure how to interpret. I