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I am trying to do what is perhaps the most basic procedure which can be done with the R software. Under Windows XP Home Edition, I want to get a copy of the function "gam," then put it in and use it. I intentionaly use informal terms, rather than technical terms whose exact meaning I might or might not know. I am finding this extremely frustrating. Every time I try to do anything,

I have a numeric vector of length 1. I am trying to use it inside a function just by giving its name, rather than specifying it as an argument to the function. I am aware that there is an attach function which you need to call. The attach function will accept a list. However, I don't seem to be able to create the list properly. (Or should I use a frame instead?) Anyway, here is the output,

Question: Suppose I have an arbitrary object. Is there a function which will accept the object as an argument and sort of give the format of the object, how it is put together, etc.? The analysis would include the attributes and the names of the attributes. Also, things like whether or not the object is an array; whether or not it is a matrix, etc. Tom Jones

From: Thomas Jones I have several user-defined functions. As is standard practice, I am defining a logical vector named idebug in order to control debugging printouts. For example, if idebug [1] has the value TRUE, such-and-such debugging printouts are enabled. After the function works, some or all of the debugging printouts can be inhibited. idebug is a global variable; otherwise, it would

Difficulty handling NA's: Assume that I have a numeric vector y. For simplicity, assume that it has 10 elements. Assume that the third element has the value NA. I give it the following: NA_test <- function (){ y <- numeric (10) y [3] <- NA if (y [3] != NA){(print ("no")} print ("Leaving NA_test") return () }# End of function

My question is a seemingly simple one. I have a bunch of user-defined functions which compute such-and-such objects. I want to be able to define a variable in a particular function, then make use of it later, perhaps in a different function, without necessarily having to move it around in argument lists. In the C community, it would be called a "global" variable. Question 1: Is this

...rtment of Statistics The University of Auckland Private Bag 92019 Auckland New Zealand 64 9 3737599 x85392 paul at stat.auckland.ac.nz http://www.stat.auckland.ac.nz/~paul/ ------------------------------ Message: 88 Date: Thu, 22 Nov 2007 03:16:01 -0500 From: "Thomas L Jones, PhD" <jones3745 at verizon.net> Subject: [R] Naming elements of a list To: "R-project help" <r-help at stat.math.ethz.ch> Message-ID: <000301c82cdf$ebdb3500$2f01a8c0 at dell2400> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original I have a nume...

Subject: Creating a barplot--advice needed > Advice needed: I am preparing a computer program to do a barchart. Advice > needed: Should I learn the lattice package, or try to? As a > non-statistician, much of the terminology is unfamiliar to me. "grouping > variable," "object of class trellis," etc. Or, is there a more easily > learned way to do it? It is a

I have a numeric vector of lenth 1. I am trying to use it inside a function just by giving its name, rather than specifying it as an argument to the function. I am aware that there is an attach function which you need to call. The attach function will accept a list. However, I don't seem to be able to create the list properly. (Or should I use a frame instead?) free_driver <- function (){

The subject is a Generalized Additive Model. Experts caution us against overfitting the data, which can cause inaccurate results. I am not a statistician (my background is in Computer Science). Perhaps some kind soul would take a look and vet the model for overfitting the data. The study estimated the ebb and flow of traffic through a voting place. Just one voting place was studied; the