Displaying 20 results from an estimated 400 matches similar to: "Automatically updating GLM object"
2007 Feb 13
1
Missing variable in new dataframe for prediction
Hi,
I'm using a loop to evaluate several models by taking adjacent variables from my dataframe.
When i try to get predictions for new values, i get an error message about a missing variable in my new dataframe.
Below is an example adapted from ?gam in mgcv package
library(mgcv)
set.seed(0)
n<-400
sig<-2
x0 <- runif(n, 0, 1)
x1 <- runif(n, 0, 1)
x2 <- runif(n, 0, 1)
x3 <-
2003 Jan 14
1
Random number generator in R compared to S
I''m doing some simulations for which i need to use both S-plus and R.
I generate in S+ some random normal distributions to define one dataset by
iteration. I need to use the same dataset generated in S-plus in R.
I was first thinking to generate in R the same dataset by using the same
random number generator with a fixed seed. But It seems that S-plus and R
don''t use the same
2003 Sep 17
0
attributing names in predicted type="terms" gam object
Hi,
suppose i have a gam object
gamobject<- gam( Y~ s(X1)+s(X2)+ X3)
I would like to extract the predicted partial effect of X3 but selecting
it by its name, as it's to be included in a function and i don't always
know the exact position of X3.
something like predict(gamobject,type="terms")["X3",]. But that doesn't
work as there's no name.
So, looking
2004 Nov 18
5
Lexical Scoping: eval(expr,envir=)
Hi R-listers,
I am trying to better undertand what we would call "functional paradigm"
use of S/R to better map my programming activities in other languages.
This little function is aimed to create an object (at the end end, it would
have it's own class):
--
myObject =function(){
list(
a=1,
foo=function(b)
{
cat("b:",b)
2009 Nov 23
1
OOP with Encapsulated Class Definitions
Hi all,
I'm seeking feedback (good, bad or indifferent) in regards to
developing (further) a new class system for R, that uses encapsulated
class definitions (i.e. the method definitions are literally inside
the body of the class definition).
A working (however very rough and poorly tested) system is available
in my R package "oosp" with documentation in the vignette
2006 Aug 04
2
RoR: recognizing a defined class
Hi all,
I am very new to Ruby and I have a silly question: how do I get RoR to
"recognize" that I just defined a class? To be more explicit, I have a
controller and view, and then I want to create a class and get the
controller to "see" it. So, I created a file called "myobject.rb" in the
models/ directory and inside it defined "class myobject [...] end".
2006 Dec 12
1
S4 'properties' - creating 'slot' functions?
Dear R users!
Several languages like C# or VB allow one to create properties; typically
these are under 'get', 'set' tags. My question is this really, what are
similar or comparable strategies in R, and what might be preferred? I have a
couple of situations where I want a certain computation to belong to a
class, but I do not really want to seperate it out to a stand-alone
2008 Jan 09
1
Subsetting Method [ Revisited
Hello Everyone:
As usual, thanks in advance for any help.
I was hoping to get some more advice on this question:
I'm trying to write a subsetting routine for an S3 object I've created --
lets call it myObject.
myObject has a few attributes basically of type string and numerics. Its
atomic value is just a vector of ints.
I want to write my own subsetting routine to subset myObject in
2006 May 24
2
newbie oo question
Hey everyone,
I''m trying to create an object that will have some properties
predefined, but will allow me to pass in properties to override those
standard props if needed. I''m trying something like:
var myObject = Class.create();
myObject.prototype = {
initialize: function(element, options) {
this.element = $(element);
this.name = this.element.id;
this.options =
2006 Feb 17
2
Sorting Multiple Arrays
Hey Cats,
I''m having a problem. I''m working with an object that contains a bunch
of arrays:
var myObject = {
"data": [
{"line": [1,"aoo","far"]},
{"line": [2,"boo","ear"]},
{"line": [3,"coo","dar"]},
{"line":
2007 Jan 22
1
Prototype.js object.constructor exception
I''m trying to debug an a uncaught exception: Permission denied to get
property Object.constructor error.
I have some code like this:
myObject.js
------------
function myObject (arg1, arg2, arg3)
{
//does some constructor related stuff
}
myObject.prototype.createSomething = function()
{
// do more boring stuff
// return an Array;
}
manager.js
-----------
var fakeHashMap = new
2005 Jul 19
2
Obtaining argument name within a function
Dear all
How can I obtain the name of the argument passed in a function? Here is a
simplistic example of what I would like to obtain:
myfunction= function(name) {
print(paste("The parameter name was",unknownFunction(name))
}
myfunction(myobject)
[1] "The parameter name was myobject"
Thanks
Francisco
2006 Dec 30
1
plot methods in sp
Dear listers,
I am working since a while with the sp package and still wonder how the
plot methods are managed with sp spatial objects. For instance,
SpatialPolygonsDataFrame objects have obviously a plot method. However
it cannot be found in the list provided by methods(plot) . Furthermore
?plot.SpatialPolygonsDataFrame, nor ?plot.SpatialPolygons, etc.. provide
a help, though the lattice
2006 Jun 21
26
Implementing a boolean "switch" in a Class
I need a single boolean which would be "globally" accessible to all
instances of a class. Seems like the boolean should be in the class
prototype, but I was troubled by the difficulty of setting the prototype
boolean to true. Maybe I''m missing something?
var MyObject = Class.create();
MyObject.prototype = {
bSwitch: false,
... other methods and properties
}
var oMyOb1
2012 Sep 18
2
Access block scope from AR object
I need to create a sort of transaction around some Active Record objects
that perform many insert/updates.
Example:
class MyObject
def transaction &block
@my_var = value
self.instance_eval block
end
end
MyObject.new.transaction do
Model.create
Model.collection.create
etc......
end
I have a gem that add a method into AR::Base and I need to read
2010 Nov 22
1
cpgram: access data, confidence bands
Dear R experts, beginners and everyone else,
I'm calculating "cumulative periodogram" using the command "cpgram"
[1] from the MASS library. Here is a short example with the "lh"
(hormone level) dataset:
library(MASS)
plot(lh,type="l",ylab="value",xlab="time", main="Hormone Levels (lh)")
spectrum(lh,
2009 Jul 09
2
X-axis labels not displayed when changing ylim
Dear R users,
I am encountering a x axis labeling problem on quite basic plots...
I use the following code which displays the labels on the x-axis with a
45 degrees angle:
p <- plot(myobject1, type="b", col="red",cex=1, lwd=2, axes=FALSE,
ann=FALSE, ylim=c(0,70))
title(main="title", font.main=4)
axis(side=1, lab=F)
text(axTicks(1), par("usr")[3] - 2,
2010 Jul 08
3
Testing equality
Hello
How can I test equality with two objects when they include some
attribute that is BigDecimal?
if I make something like this:
it "should ...whatever" do
obj = Factory.create(:my_object)
...
MyObject.first.should == obj
end.
FAILS
This fails because the object expected is different from the object
gotten, and the only difference are the BigDecimal attributes, that are
2006 Aug 10
6
save without commit ?
How do I get ''save'' to execute without commit?
I have tried:
ActiveRecord::Base.connection.begin_db_transaction
# do some stuff that doesn''t issue a database COMMIT statement
# then:
@myObject.save
# this issues a COMMIT but it shouldn''t! Shouldn''t it wait until I''ve
called:
ActiveRecord::Base.connection.commit_db_transaction
?
what am
2006 Mar 28
0
Question about Mapping from Forms
During a load or save in my controller I''ve manually been doing:
@myobject = MyObject.find(:first, :conditions => "id = #{@params[''id'']}")
If I''m updating an existing object I load it, change stuff using
something like myobject.name = "@params[''name'']", etc etc, then call
save. That''s what I''ve done in