search for: helppages

seek(zz,where=NewPosition) returns the OldPosition of connection zz (of the appropriate "pointer", i.e. read or write). Currently, the docs have: > Details: > > `seek' with `where = NA' returns the current byte offset of a > connection (from the beginning), and with a positive `where' > argument the connection is re-positioned (if possible) to

Hi [R-2.6.0, macOSX 10.4.10]. The helppage says that rowSums() and colSums() are equivalent to 'apply' with 'FUN = sum'. But I came across this: > a <- matrix(1:30,5,6) > is.integer(apply(a,1,sum)) [1] TRUE > is.integer(rowSums(a)) [1] FALSE > so rowSums() returns a float. Why is this? -- Robin Hankin Uncertainty Analyst National Oceanography Centre,

Hi [I'm not sure if this is "intelligible to non-programmers" or not] R-exts (section 4.2) gives an example of the .C() function whose third argument is "as.integer(length(a))", and urges the user to coerce all the arguments to the correct form (on pain of "hard-to-catch errors" which I now know to be very appropriate, if understated, phrasing). The

Hello R-friends, i have a question to the "text"-function. a little test-dataset for better understanding: -the dataset was imported with read.table(....,header=TRUE) s1-s10 are the samplenames var1 var2 var3 s1 1 1 2 s2 2 3 1 s3 2 2 3 s4 5 4 3 s5 4 2 3 s6 6 3 2 s7 8 5 4 s8 7 2 1 s9 9 3 2

Dear list members, I'm a bit confused about the evaluation of expressions using with() or within() versus subset() and transform(). I always teach my students to use with() and within() because of the warning mentioned in the helppages of subset() and transform(). Both functions use nonstandard evaluation and are to be used only interactively. I've never seen that warning on the help page of with() and within(), so I assumed both functions can safely be used in functions and packages. I've now been told that both functio...

...com> wrote: > > > Dear list members, > > > > I'm a bit confused about the evaluation of expressions using with() or > > within() versus subset() and transform(). I always teach my students to use > > with() and within() because of the warning mentioned in the helppages of > > subset() and transform(). Both functions use nonstandard evaluation and are > > to be used only interactively. > > > > I've never seen that warning on the help page of with() and within(), so I > > assumed both functions can safely be used in functions and p...

Hi Is there a function for computing the standard correlation coefficient (not pearson) in R? Thanks Mick

...Meys <jorismeys at gmail.com> wrote: > Dear list members, > > I'm a bit confused about the evaluation of expressions using with() or > within() versus subset() and transform(). I always teach my students to use > with() and within() because of the warning mentioned in the helppages of > subset() and transform(). Both functions use nonstandard evaluation and are > to be used only interactively. > > I've never seen that warning on the help page of with() and within(), so I > assumed both functions can safely be used in functions and packages. I've > no...

...way. *** *** Your turn *** What would you like to see in a search capability associated with R? I'd like a web-based facility that could easily produce a package summary table with columns like Package, Count, MaxScore, TotalScore, Date, Title, Version, Author, Maintainer, helpPages, vignette -- possibly with other column(s) for something like "book(s)" or "additional documentation": When I'm searching for something, I often want to know if a package has a vignette, companion book(s) or additional documentation. I believe I can easily add a URL to...

Dear list,   I am looking for an R-only implementation of a Nelder-Mead process that can find local maxima of a spatially distributed variable, e.g. height, on a spatial grid, and outputs the coordinates of the new point during each evaluation. I have found two previous threads about this topic, and was wondering if something similar has been implemented since those messages were posted.   Thank

...> I'm a bit confused about the evaluation of expressions using > with() or > > within() versus subset() and transform(). I always teach my > students to use > > with() and within() because of the warning mentioned in the > helppages of > > subset() and transform(). Both functions use nonstandard > evaluation and are > > to be used only interactively. > > > > I've never seen that warning on the help page of with() and > within(), so I >...

Hello, I am working with s.multinom() from the ade4package. I tried to plot the results of my %PCA (via the function dudi.pca()) followed by a MCOA (mcoa()). But when I give my variables to s.multinom() I get the following Error message: Error in FUN(1:14[[1L]], ...) : number 1 profile without data I know that it has to do with one (or two?) of the first arguments (kpca,sglmarkerfrq) but I just

Hi, I have a large group of jobs, some of them are running on the same directory. All of them in batch mode. What are the best ways to protect from corrupting the results two or more jobs running on the same directory. One, I would think can be to run each job in a separate directory, collect the results and after remove the directories. But I have thousands of jobs that will run in parallel

Hello, i use i.e. the cluster-package and the fanny-object to construct some cluster's and get the membership'S for every "Person" & Cluster ! My finally problem is to match efficient the data and the results's togehter in one table! Until now i use the ODBC-Package and save both in a access-file and copy them together, but i can't be sure that the sorting is the

...> Dear list members, >> > >> > I'm a bit confused about the evaluation of expressions using with() or >> > within() versus subset() and transform(). I always teach my students to >> use >> > with() and within() because of the warning mentioned in the helppages of >> > subset() and transform(). Both functions use nonstandard evaluation and >> are >> > to be used only interactively. >> > >> > I've never seen that warning on the help page of with() and within(), >> so I >> > assumed both functions...