> Spencer Graves
> on Tue, 28 Jan 2020 17:24:14 -0600 writes:
> On 2020-01-28 05:13, Martin Maechler wrote:
>>> Spencer Graves
>>> on Mon, 27 Jan 2020 23:02:28 -0600 writes:
>
>>
>> Still, as Abby mentioned, turning a simple function into the
>>
On 2020-01-28 05:13, Martin Maechler wrote:
Spencer Graves
on Mon, 27 Jan 2020 23:02:28 -0600 writes:
Still, as Abby mentioned, turning a simple function into the
default method of an S3 generic is easy to do, but comes with a
bit of cost, not just S3 dispatch which typically is neg
> Spencer Graves
> on Mon, 27 Jan 2020 23:02:28 -0600 writes:
> Thanks for the reply.
> On 2020-01-27 19:56, Abby Spurdle wrote:
>> Maybe I'm missing something really obvious here, but I was unable to
>> create a matrix out of POSIXct object(s).
>> Perhaps th
Whether something "is" a matrix depends on whether you listen to
is.matrix(x) or to inherits(x, "matrix"):
x = Sys.Date () + 1:16
y = as.POSIXct (x)
dim(y) = c(4,4)
is.matrix(y)
# [1] TRUE
inherits(y, "matrix")
# [1] FALSE
f = factor(letters[1:9])
dim(f) = c(3,3)
is.matrix(f)
# [1] TRUE
inherits(
> > Maybe I'm missing something really obvious here, but I was unable to
> > create a matrix out of POSIXct object(s).
> > Perhaps that deserves a separate discussion...?
>Can you provide an example?
--
#date and time objects
x = Sys.Date () + 1:16
y = as.POSIXct (x)
#matrices
str (matrix
Thanks for the reply.
On 2020-01-27 19:56, Abby Spurdle wrote:
Maybe I'm missing something really obvious here, but I was unable to
create a matrix out of POSIXct object(s).
Perhaps that deserves a separate discussion...?
Can you provide an example?
The standard matplot a
Maybe I'm missing something really obvious here, but I was unable to
create a matrix out of POSIXct object(s).
Perhaps that deserves a separate discussion...?
Regarding your other comments/questions:
(1) You should *NOT* mask functions from the graphics package (or
base, stats, etc), except possib
Hello, All:
Roughly a decade ago, I added "matplot.Date" and
"matplot.POSIXct" to the "fda" package, so we could get reasonable
labeling of the horizontal axis when "x" was class "Date" or "POSIXct".
I also added a local version of "matplot.default" that just changes the
defaults fo
