Jeff,
Clearly you (and others) have put a lot of work into xts -- and I'm the
beneficiary. So I'll stop complaining.
Thanks for the class (both code and explanation).
*-- Russ *
On Sun, May 8, 2011 at 8:23 PM, Jeff Ryan wrote:
> Hi Russ,
>
> We're of course getting into some incredibly fine
Hi Russ,
We're of course getting into some incredibly fine-level detail on how all of
this works. I'll try and explain issues as I recall them over the
development of xts and cbind.xts
xts started as an extension of zoo. zoo is an extension of 'ts' (greatly
simplified comparison of course, but
On Sun, May 8, 2011 at 1:17 PM, Russ Abbott wrote:
> I understand Josh's example:
>
> mat <- matrix(1:10, dimnames = list(NULL, "A"))
> cbind(X = 11:20, Y = mat + 1)
> cbind(X = 11:20, Y = mat[, "A"] + 1)
>
> In the line, cbind(X = 11:20, Y = mat + 1), it would be nice if an error or
> warning mes
Russ,
On May 8, 2011 6:29 PM, "Russ Abbott" wrote:
>
> Hi Jeff,
>
> The xts class has some very nice features, and you have done a valuable
> service in developing it.
>
> My primary frustration is how difficult it seems to be to find out what went
> wrong when my code doesn't work. I've been wr
Hi Jeff,
The xts class has some very nice features, and you have done a valuable
service in developing it.
My primary frustration is how difficult it seems to be to find out what went
wrong when my code doesn't work. I've been writing quite sophisticated code
for a fairly long time. It's not tha
Hi Russ,
Colnames don't get rewritten if they already exist. The reason is due to
performance and how cbind is written at the R level.
It isn't perfect per se, but the complexity and variety of dispatch that can
take place for cbind in R, as it isn't a generic, is quite challenging to get
to
I understand Josh's example:
mat <- matrix(1:10, dimnames = list(NULL, "A"))
cbind(X = 11:20, Y = mat + 1)
cbind(X = 11:20, Y = mat[, "A"] + 1)
In the line, cbind(X = 11:20, Y = mat + 1), it would be nice if an error or
warning message were issued to the effect that the "Y = " part is ignored or
Hi Russ,
On Sun, May 8, 2011 at 12:07 PM, Russ Abbott wrote:
> I'm having troubles with the names of columns.
>
> quantmod deal with stock quotes. I've created an array of the first 5
> closing prices from Jan 2007. (Is there a problem that the name is the same
> as the variable name? There shou
On May 8, 2011, at 3:07 PM, Russ Abbott wrote:
I'm having troubles with the names of columns.
quantmod deal with stock quotes. I've created an array of the first 5
closing prices from Jan 2007. (Is there a problem that the name is
the same
as the variable name? There shouldn't be.)
close
I'm having troubles with the names of columns.
quantmod deal with stock quotes. I've created an array of the first 5
closing prices from Jan 2007. (Is there a problem that the name is the same
as the variable name? There shouldn't be.)
> close
close
2007-01-03 1416.60
2007-01-04
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