Displaying 20 results from an estimated 4000 matches similar to: "improving ts object"
2002 Sep 16
2
how to fit just a fixed effects model?
Dear all,
How can one fit just a fixed effects model in R? lme() seems to require a random component, whereas I am just looking for something like STATA's "xtreg, fe" function.
Thanks,
Pijus
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2003 Feb 10
3
non-SQL sqlQuery error
Dear all,
I've encountered a curious problem. I am trying to run an SQL query
using sqlQuery() function in RODBC.
The query works fine when run in a stand-alone SQL browser (Microsoft
Query Analyzer, in particular).
However, when I use the exact same thing from sqlQuery() function, I get
the following error:
Error in "[.data.frame"(data, , ) : not all specified columns exist
2007 Aug 15
1
getting lapply() to work for a new class
Hi,
I would like to get lapply() to work in the natural way on a class I've
defined. As far as I can tell, lapply() needs the class to be coercible
to a list. Even after I define as.list() and as.vector(x, mode="list")
methods, though, I still get an "Error in as.vector(x, "list") : cannot
coerce to vector". What am I doing wrong?
# dummy class
2002 Aug 28
1
handling dates in R
Dear all,
I am just getting into R, and I arrive with a task in hand. I need to handle time series of price data, and use them in regressions and cluster models of various kinds. At this time, I am just trying to learn the most graceful ways of working with date-indexed data in R in general.
I know of the ts object; however, it seems to assume a very regular periodicity of the data.
2003 Jan 03
1
Interfacing R and C++ under Windows
Dear all,
My colleague, who has been helping me with wrapping some older C++ code for use in R, has been running into some issues, which he asked me to post here:
- ERROR is defined in RS.h which is included in Rdefines.h which conflicts with Visual Studio's ERROR
- TRACE is defined in Rinternals.h which conflicts with Visual Studio's TRACE
- math.h is included within extern
2006 Sep 03
9
using highlight from aaf
Hi,
I''m trying to use highlight ferret method with trunk aaf and 0.10.1
ferret.
In my search display I use:
Myindexedclass.ferret_index.searcher.highlight(@query, result_line.id,
:content)
* searcher is a protected method; how can I access to the searcher from
aaf ?
* is the doc id in aaf the same as my model id ?
* is the first param, query, the string query or the query object ?
2006 Aug 11
5
actionmailler corrupting emails
Hi All,
I have a problem with actionmailer corrupting my html emails. It is
adding the character ''3D'' before any quotes (single or double) in my
source and smattering ''='' characters throughout as well. Very
strange. Here''s an example from one of the emails:
________________
<body>
<div id=3D''wrapper''>
<div
2007 Dec 03
3
Request param type of array
Hello.
I have tested such form:
<form method=''POST''>
<input type=''hidden'' name=''myfield'' value=''value1''>
<input type=''hidden'' name=''myfield'' value=''value2''>
<input type=''submit'' name=''_submit''
2012 Jun 19
1
Reference classes and memory consumption
Dear All,
It seems that reference classes consume a lot of memory which became a problem for my rather extensive simulation.
I prepared a small example. An instance of this minimal class uses about 20K on disk.
rm(list=ls(all=TRUE));
MySmallClass = setRefClass("MySmallClass",
fields = list(
myField = "numeric"
),
methods = list(
initialize =
2006 May 08
17
partial problem
def my_controller
@variable = [{''myfield''=>''grey''},{''myfield''=>''blue''}]
end
#-------------------------my_view
<table>
<%= render :partial=>''my_partial, :collection=>@variable %>
</table>
#----------------------_my_partial
<tr>
<td><%=
2007 Jun 09
4
Prototype Question
I''m trying to apply a css class to all LI elements that are children
of an element with the ID "idSelector".
This is what I did and it works. But I was wondering if there was an
easier way without having to use an anonymous function?
$$("#idSelector li").each(function()
{ arguments[0].addClassName("myClass") });
Thanks in advance.
2011 Jan 26
1
How to call subset in a for loop?
Dear all,
I have a data frame 'myDf', in which one of the fields 'myField' can have
several possible values. To extract the observations for which it has value
"A", I can do:
subset(myDf, myField="A")
However, when I try to do this within a loop, it doesn't work, it returns
everything, and not a subset
for (currField in c("A", "B",
2010 Jun 23
2
About normality tests...
Hi all,
I have two very large samples of data (10000+ data points) and would
like to perform normality tests on it. I know that p < .05 means that
a data set is considered as not normal with any of the two tests. I am
also aware that large samples tend to lead more likely to normal
results (Andy Field, 2005).
I have a few questions to ensure that I am using them right.
1) The Shapiro-Wilk
2006 Jan 17
5
NOOB: Numeric only input...can it be done on client?
I was wondering if there''s a way to limit what a user is typing on the
keyboard to only valid numeric input. Is there a simple plugin or something
which would allow this? I guess with AJAX it could also be one. Has anyone
already solved this requirement? Thanks in advance.
James
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2005 Nov 10
4
write.table read.table with Dates
I've found several similar issues with write.table/read.table
with Dates on this list, but trying to follow this advice I still
get an error.
First, I read in data from several files, constructing several date/time
columns using ISOdatetime
> str(Tall$Begin)
'POSIXct', format: chr [1:40114] "2005-10-02 00:00:00" "2005-10-02
00:00:00" ...
> length(Tall$Begin)
2004 Sep 02
2
Polycom Microbrowser
I have just spent the morning playing around with a Polycom IP600's
microbrowser. Everything is working pretty well. In answer to the
question of what type of XML it runs, it appears to be more or less
XHTML-compliant. I have created a basic set of web pages allowing users
to clock in and out against our MySQL timeclock system, running a PHP
back-end. It's running like a champ.
2007 Mar 30
2
Replacing slot of S4 class in method of S4 class?
Dear all,
Assume that I have an S4 class "MyClass" with a slot "myname", which
is initialized to: myname="" in method("initialize"):
myclass <- new("MyClass", myname="")
Assume that class "MyClass" has a method "mymethod":
"mymethod.MyClass" <-
function(object, myname=character(0), ...) {
2020 May 12
4
S3 method dispatch for methods in local environments
Dear All,
In R 3.6.3 (and earlier), method dispatch used to work for methods stored in local environments that are attached to the search path. For example:
myfun <- function(y) {
out <- list(y=y)
class(out) <- "myclass"
return(out)
}
print.myclass <- function(x, ...) print(formatC(x$y, format="f", digits=5))
myfun(1:4)
# prints: [1]
2005 Dec 07
1
Dots argument in apply method
Hello everyone,
I'm working on a package using S4 classes and methods and I ran into the
following "problem" when I tried to create an "apply" method for objects
of one of my new classes. I've found a way around the problem but I
wonder if I did not paint myself into the corner. I'd like your opinion
about that.
So I have an object "myObj" of class
2019 Jul 07
3
Possible bug in `class<-` when a class-specific '[[.' method is defined
Hi all !
I noticed a strange behaviour of the function `class<-` when a class-specific '[[.' method is defined.
Here below a reproducible example :
#-------------------------------------------------------------------.
counttt <- 0
`[[.MYCLASS` = function(x, ...) {
counttt <<- counttt + 1
# browser()
x = NextMethod()
return(x)
}
df <- as.data.frame(matrix(1:20,