Modelling a mutable entity, i.e. an account, is really a perfect
example of when to use reference classes. You might find the examples
on http://adv-r.had.co.nz/OO-essentials.html give you a better feel
for the strengths and weaknesses of R's different OO systems.
Hadley
On Sat, Nov 9, 2013 at 9
On 13-11-09 5:56 PM, Jeff Newmiller wrote:
The problem that prompted this question involved manufacturers and their model
numbers, so I think the cross everything and throw away most of it will get out
of hand quickly. The number of models per manufacturer definitely varies. I
think I will wor
HI,
The code could be shortened by using ?merge or ?join().
library(plyr)
##Using the output from `lst6`
lst7 <- lapply(lst6,function(x) {x1 <-
data.frame(Year=rep(1961:2005,each=12),Mo=rep(1:12,45)); x2
<-join(x1,x,type="left",by=c("Year","Mo"))})
##rest are the same (only change in object n
Hi,
Try:
library(stringr)
# Created the selected files (98) in a separate working folder
(SubsetFiles1) (refer to my previous mail)
filelst <- list.files()
#Sublst <- filelst[1:2]
res <- lapply(filelst,function(x) {con <- file(x)
Lines1 <- readLines(con) close(con)
Lines2 <- Lines
Hello,
I have a list called ja and I wish to unify list objects if there is some
overlap.
For instance something like
if (length (intersect (ja[[1]], ja[[2]]) !=0) { union (ja[[1]], ja[[2]] }
but of course it should work cumulatively (for larger data sets).
Could you please give me a hint.
Tha
I'm using 'expression()' in R plots in order to get italicized text.
But it appears as if I cannot use Unicode symbols inside 'expression'
outside of ASCII characters. Is there some way I can work around this?
My goal is to get the 'fi' ligature in various labels in my R barplots
(together with ital
Thank you!
On Sat, Nov 9, 2013 at 2:30 PM, Simon Zehnder wrote:
> This depends very often of on the developer and what he is comfortable
> with. I like S4 classes, as I come from C++ and S4 classes approximate C++
> classes at least more than S3 classes do (Reference Classes would do so
> even
Hi,
I am data mining from twitter using the twitteR package but I am facing a
problem mining statuses. A lot of times the status does not return the
desired number of statuses but returns only a specific number. Also, this
number keeps on varying for exactly the same arguments ( No, its not that
m
The problem that prompted this question involved manufacturers and their model
numbers, so I think the cross everything and throw away most of it will get out
of hand quickly. The number of models per manufacturer definitely varies. I
think I will work on the print segments of the table successi
On 11/09/2013 11:59 AM, Rolf Turner wrote:
For my take on the issue see fortune("strait jacket").
cheers,
Rolf Turner
P. S. I said that quite some time ago and I have seen nothing
in the intervening years to change my views.
Mileage varies; the Bioconductor project attains a lev
There is a sub-object called 'rules' that has the output of C5.0 for this model:
> library(C50)
> mod <- C5.0(Species ~ ., data = iris, rules = TRUE)
> cat(mod$rules)
id="See5/C5.0 2.07 GPL Edition 2013-11-09"
entries="1"
rules="4" default="setosa"
conds="1" cover="50" ok="50" lift="2.94231" class
For my take on the issue see fortune("strait jacket").
cheers,
Rolf Turner
P. S. I said that quite some time ago and I have seen nothing
in the intervening years to change my views.
R. T.
On 11/10/13 04:22, daniel schnaider wrote:
Hi,
I am working on a new credit portfolio o
On 13-11-09 1:23 PM, Jeff Newmiller wrote:
Visually, the elimination of duplicates in hierarchical tables in the
tabular function from the tables package is very nice. I would like to do
the same thing with non-crossed factors, but am perhaps missing some
conceptual element of how this package is
Hi again,
In R, there are various numerics like, NA, Inf, or simple integers etc.
However I want to include one custom type: "TBD", which R should treat as
numeric, not character.
That "TBD" should have same property like Inf, however except this: TBD -
TBD = 0
In future, I am planning to add fe
On 13-11-09 1:23 PM, Jeff Newmiller wrote:
Visually, the elimination of duplicates in hierarchical tables in the
tabular function from the tables package is very nice. I would like to do
the same thing with non-crossed factors, but am perhaps missing some
conceptual element of how this package is
On 13-11-09 12:53 PM, j. van den hoff wrote:
On Sat, 09 Nov 2013 18:18:23 +0100, Duncan Murdoch
wrote:
On 13-11-09 11:57 AM, j. van den hoff wrote:
On Sat, 09 Nov 2013 17:16:28 +0100, Duncan Murdoch
wrote:
On 13-11-09 8:50 AM, j. van den hoff wrote:
I'd very much appreciate some help here
Visually, the elimination of duplicates in hierarchical tables in the
tabular function from the tables package is very nice. I would like to do
the same thing with non-crossed factors, but am perhaps missing some
conceptual element of how this package is used. The following code
illustrates my
On 11/09/2013 06:31 AM, daniel schnaider wrote:
It is my first time programming with S4 and I can't get the setter fuction
to actually change the value of the slot created by the constructor.
I guess it has to do with local copy, global copy, etc. of the variable -
but, I could't find anything r
Just to clarify: I'm guessing the OP is referring to the CRAN package C50
here. A quick skim suggests the rules are a list element of a C5.0-class
object, so maybe that's where to start?
David Winsemius wrote
> In my role as a moderator I am attempting to bypass the automatic mail
> filters t
I agree w/ lubridate.I also would like to mention that "date handling"
is amazingly difficult in ALL computer languages, not just R. Take a stroll
through sites like thedailywtf.com to see how quickly people get into
tarpits full of thorns when trying to deal with leap years, weeks vs month
On Sat, 09 Nov 2013 18:18:23 +0100, Duncan Murdoch
wrote:
On 13-11-09 11:57 AM, j. van den hoff wrote:
On Sat, 09 Nov 2013 17:16:28 +0100, Duncan Murdoch
wrote:
On 13-11-09 8:50 AM, j. van den hoff wrote:
I'd very much appreciate some help here: I'm in the process of
clarifying
whether I
On 13-11-09 11:57 AM, j. van den hoff wrote:
On Sat, 09 Nov 2013 17:16:28 +0100, Duncan Murdoch
wrote:
On 13-11-09 8:50 AM, j. van den hoff wrote:
I'd very much appreciate some help here: I'm in the process of
clarifying
whether I can use `computeContour3d' to derive estimates of the surface
On Sat, 09 Nov 2013 17:16:28 +0100, Duncan Murdoch
wrote:
On 13-11-09 8:50 AM, j. van den hoff wrote:
I'd very much appreciate some help here: I'm in the process of
clarifying
whether I can use `computeContour3d' to derive estimates of the surface
area of a single closed isosurface (and pr
This depends very often of on the developer and what he is comfortable with. I
like S4 classes, as I come from C++ and S4 classes approximate C++ classes at
least more than S3 classes do (Reference Classes would do so even more and I
know very good R programmers liking these most).
1) I wrote a
If you want to set a slot you have to refer to it:
ac@CustomerID <- “54321”
or you use your setter:
ac <- CustomerID(ac, “54321”)
What you did was creating a new symbol CustomerID referring to the String
“54321”
CustomerID <- “54321”
CustomerID
[1] “54321”
Best
Simon
On 09 Nov 2013, at 15:
On 13-11-09 8:50 AM, j. van den hoff wrote:
I'd very much appreciate some help here: I'm in the process of clarifying
whether I can use `computeContour3d' to derive estimates of the surface
area of a single closed isosurface (and prospectively the enclosed
volume). getting the surface area from t
It is my first time programming with S4 and I can't get the setter fuction
to actually change the value of the slot created by the constructor.
I guess it has to do with local copy, global copy, etc. of the variable -
but, I could't find anything relevant in documentation.
Tried to copy examples
Hi,
I am working on a new credit portfolio optimization package. My question is
if it is more recommended to develop in S4 object oriented or S3.
It would be more naturally to develop in object oriented paradigm, but
there is many concerns regarding S4.
1) Performance of S4 could be an issue as
I'd very much appreciate some help here: I'm in the process of clarifying
whether I can use `computeContour3d' to derive estimates of the surface
area of a single closed isosurface (and prospectively the enclosed
volume). getting the surface area from the list of triangles returned by
`comp
In a rather simple regression, I’d like to ask the question, for high trees,
whether it makes a difference (for volume) whether a three is thick.
If my interpretation is correct, for low trees, i.e. for which trees$isHigh
== FALSE, the answer is yes.
The problem is how to "merge" the standard er
On Nov 8, 2013, at 10:56 AM, Hermann Norpois wrote:
> Hello,
>
> having a data frame like test with pairs of characters I would like to
> create chains. For instance from the pairs A/B and B/I you get the vector A
> B I. It is like jumping from one pair to the next related pair. So for my
> exam
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