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How can expanding tildes anywhere but the beginning of a file name NOT be considered a bug? On Thu, 6 Jun 2019 at 23:04, Ivan Krylov <krylov.r00t at gmail.com> wrote: > On Wed, 5 Jun 2019 18:07:15 +0200 > Frank Schwidom <schwidom at gmx.net> wrote: > > > +> path.expand("a ~ b") > > [1] "a /home/user b" > > > How can I switch off

Given - UTC timestamp - a location (latitude,longitude,elevation) I want to know - the sun angles - the moon angles - the phase of the moon. I looked on CRAN for astronomy, but didn't notice anything that seems to offer what I want. I could try coding these functions myself, but "if you didn't write it you didn't wrong it".

I know you didn't want to stimulate discussion, but the problem is not confined to publication. "Adverse reaction to medication" monitoring programs are plagued by a similarly massive under-reporting problem: adverse reactions are seldom reported unless they are particularly bad or surprising. (The Ministry of Health in my country estimates 90% of cases are never reported.)

R *does* search the environment stack. > search() [1] ".GlobalEnv" "package:stats" "package:graphics" [4] "package:grDevices" "package:utils" "package:datasets" [7] "package:methods" "Autoloads" "package:base What you seem to be missing is that a package may contain bindings that it

I'm running Ubuntu 18.04 LTS and r-base/bionic-cran35,now 3.6.3-1bionic all [installed] 3.6.3 is also the latest version in the repository. On Fri, 30 Oct 2020 at 12:21, Marc Schwartz via R-help <r-help at r-project.org> wrote: > > > On Oct 29, 2020, at 6:35 PM, H <agents at meddatainc.com> wrote: > > > > On 10/29/2020 01:49 PM, Marc Schwartz wrote: >

?ifelse 'ifelse' returns a value with the same shape as 'test' which is filled with elements selected from either 'yes' or 'no' depending on whether the element of 'test' is 'TRUE' or 'FALSE'. This is actually rather startling, because elsewhere in the S (R) language, operands are normally replicated to the length of the longer.

...() when it *should*, to be consistent with the documentation, be calling tilde_expand_word(). as separate elements of the character vector. On Sat, 8 Jun 2019 at 04:10, Berry, Charles <ccberry at ucsd.edu> wrote: > > > > On Jun 6, 2019, at 2:04 PM, Richard O'Keefe <raoknz at gmail.com> wrote: > > > > How can expanding tildes anywhere but the beginning of a file name NOT be > > considered a bug? > > > > > > I think that that IS what libreadline is doing if one allows a whitespace > separated list of file names. > > As r...

I am more than a little puzzled by your question. In the construct {expr1; expr2; expr3} all of the expressions expr1, expr2, and expr3 are evaluated, in that order. That's what curly braces are FOR. When you want some expressions evaluated in a specific order, that's why and when you use curly braces. If that's not what you want, don't use them. Complaining about it is like

x <- numeric(0) for (...) { x[length(x)+1] <- ... } works. You can build a matrix by building a vector one element at a time this way, and then reshaping it at the end. That only works if you don't need it to be a matrix at all times. Another approach is to build a list of rows. It's not a matrix, but a list of rows can be a *ragged* matrix with rows of varying length. On Wed,

I expect that atan(1i) = (0 + infinity i) and that atan(1i)/5 = (0 + infinity i)/5 = (0 + infinity i). Here's what I get in C: (0,1) = (0, 1) atan((0,1)) = (0, inf) atan((0,1))/5 = (0, inf) Note the difference between I*infinity = (0,1)*infinity = (0*infinity,1*infinity) = (NaN,infinity) and (0,infinity)/5 = (0/5,infinity/5) = (0,infinity). The former involves multiplying 0 by infinity, which

...00 UTC" > > > > > > > Thanks > > Jim Holtman > *Data Munger Guru* > > > *What is the problem that you are trying to solve?Tell me what you want to > do, not how you want to do it.* > > > On Sun, Nov 5, 2023 at 3:45?PM Richard O'Keefe <raoknz at gmail.com> wrote: > >> I have some data that includes timestamps like this: >> 2017-02-28T13:35:00+03:00 >> The documentation for strptime says that %z expects >> an offset like 0300. I don't see any way in the documentation >> to get it to accept +hh:mm...

Not clear what you mean by "saved". If you call a function and the result is printed, the result is remembered for a wee while in the variable .Last.value, so you can do > function.with.interesting.result(.......) > retained.interesting.result <- .Last.value or even > .Last.value -> retained.interesting.result If you know before you start writing the expression that you

Thanks to all who replied. On Mon, 6 Nov 2023 at 18:37, Richard O'Keefe <raoknz at gmail.com> wrote: > OK, so the consensus is > (1) One cannot make strptime accept ISO8601-compliant zone designators > (2) The lubridate package can > (3) Or one can hack away with regex. > Lubridate it is, then. > > But I do regard strptime's inability to process IS...

There is a fairly straightforward way to load older versions of packages, and that is to use the 'groundhog' package. As the first sentence of https://groundhogr.com/ puts it: Make your R scripts reproducible by replacing library(pkg) with groundhog.library(pkg, date). pkg can be a vector of package names or a single name. On Wed, 11 Oct 2023 at 20:58, Uwe Ligges <ligges at

I recently had the chance to read a book explaining how to use ChatGPT with a certain programming language. (I'm not going to describe the book any more than that because I don't want to embarrass whoever wrote it.) They have appendix material showing three queries to ChatGPT and the answers. Paraphrased, the queries are "if I throw 2 (3, 4) fair dice, what is the probability I get

I have some data that includes timestamps like this: 2017-02-28T13:35:00+03:00 The documentation for strptime says that %z expects an offset like 0300. I don't see any way in the documentation to get it to accept +hh:mm with a colon separator, and everything I tried gave me NA as the answer. Section 4.2.5.1 of ISO 8601:2004(E) allows both the absence of colons in +hh[mm] (basic format) and

...ou. The file has the volume of 6 Megabyte. > I can send it by email. > The file has 6 met parameters and Date (day/month/year hour:minute). > I want the exported file as excel contains 7 columns (Date + 6 met parameters). > > > On Tue, 25 Jun 2024, 15:54 Richard O'Keefe, <raoknz at gmail.com> wrote: >> >> Your message referred to an attached file but there was no attachment, >> I have no account at that service, so could not download a sample for >> myself. Does the licence for the data even allow you to send some of >> it in a message? W...

Just to repeat: you have NamesWide<-data.frame(Name1=c("Tom","Dick"),Name2=c("Larry","Curly")) and you want NamesLong<-data.frame(Names=c("Tom","Dick","Larry","Curly")) There must be something I am missing, because NamesLong <- data.frame(Names = c(NamesWide$Name1, NamesWide$Name2)) appears to

The matrix equivalent of x <- ... v <- ... x[length(x)+1] <- v is m <- ... r <- ... m <- rbind(m, r) or m <- ... k <- ... m <- cbind(m, c) A vector or matrix so constructed never has "holes" in it. It's better to think of CONSTRUCTING vectors and matrices rather than INITIALISING them, because always being fully defined is important. It

The thing is that real*complex, complex*real, and complex/real are not "complex arithmetic" in the requisite sense. The complex numbers are a vector space over the reals, and complex*real and real*complex are vector*scalar and scalar*vector. For example, in the Ada programming language, we have function "*" (Left, Right : Complex) return Complex; function "*" (Left :