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Needing a < , > comparison for imaginary numbers
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?complex
On March 25, 2024 12:23:43 AM PDT, Thomas K wrote:
>Needing a < , > comparison for imaginary numbers
>
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>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>PLEASE do read the
Hi Thomas,
If you want to compare the imaginary portions, you could do:
Im(z1) < Im(z2)
If you want to compare the magnitudes, you could do:
Mod(z1) < Mod(z2)
If you want to compare complex numbers, i.e. z1 < z2, well that just
doesn't make sense.
On Mon, Mar 25, 2024, 10:17 Thomas K
Hi Paul
Is there a concrete working example somewhere that shows how to use these to do
an animation on Windows (R Gui &/or RStudio) using base R plot() and friends?
I have several old examples somewhere that used to work (R < ~ 3), but now no
longer work as before.
Date: Mon, 25 Mar 2024
That's hard to define unambiguously at a mathematical level. What
definition did you have in mind? Can you provide more context? (Maybe
you want to compare Mod(x) to Mod(y) ?)
On 2024-03-25 3:23 a.m., Thomas K wrote:
Needing a < , > comparison for imaginary numbers
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 ->
Hi
I would not describe myself as a heavy user of this stuff (either
Windows or animation) - are you able to share your examples ?
Paul
On 26/03/24 04:23, Michael L Friendly wrote:
Hi Paul
Is there a concrete working example somewhere that shows how to use
these to do an animation on
What is your actual problem that you are trying to solve by comparing
imaginary numbers?
The reals are an ordered field.
The complex numbers are a field but cannot support an ordering that is
consistent with
the field (or even ring) axioms.
The imaginary numbers are not a field or even a ring.
To
How can I have both printout and saved results at the same time.
The subroutine first return "out" and the printout gets printed, but not
saved.
I then run the "invisible" line. Results got saved and accessible but no
printout.
How can I have both printout and also have the results saved?
dstat4 <- function(data) {
Mean<- apply(data, 2, mean, na.rm=TRUE)
Std.dev <- apply(data, 2, sd, na.rm=TRUE)
Min <- apply(data, 2, min, na.rm=TRUE)
Max <- apply(data, 2, max, na.rm=TRUE)
Obs <- dim(data)[1]
data.frame(Mean, Std.dev, Min, Max, Obs)
}
## don't round inside a
I just like the subroutine to spit out results (Mean, Std.dev, etc.) and
also be able to access the results for further processing, i.e.,
v$Mean
v$Std.dev
On 3/26/2024 11:24 AM, Richard O'Keefe wrote:
Not clear what you mean by "saved".
If you call a function and the result is printed, the
Your desire is not unusual among novices... but it is really not a good idea
for your function to be making those decisions. Look at how R does things:
The lm function prints nothing... it returns an object containing the result of
a linear regression. If you happen to call it directly from the
- I works perfectly for me in two different machines (both running
Debian and Emacs 29.2.50)
Thanks for confirming.
- Maybe I am not understanding
https://github.com/sje30/ess-unigd#adjust-to-size-of-buffer--dynamically-update
, but resize of image (on changing frame and window sizes)
On Mon, 25-March-2024, at 11:21:26, Stephen J Eglen
wrote:
>> - I works perfectly for me in two different machines (both running
>> Debian and Emacs 29.2.50)
>
> Thanks for confirming.
>
>> - Maybe I am not understanding
>>
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