Re: [R] Is this a bug?

2009-08-31 Thread David Winsemius
On Aug 31, 2009, at 8:31 PM, Worik R wrote: This programme for(T in 1:3){ for(j in 1:(5-1)){ for(k in (j+1):5){ for(l in (j+2):5){ print(paste(1 JKL:, j,k,l,sep= )) } } } } Prints out (among other things) [1] 1 JKL: 4 5 6 That is for(l in (j+2):5) sets l to 6 one

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
I get that. Still trying to figure out what the multi nominal labels they used were. That's why I passed on the reference to the seminar summary. On 8/31/09 5:40 PM, Achim Zeileis wrote: On Mon, 31 Aug 2009, Noah Silverman wrote: Thanks Achim, I discovered the Journal article just after

Re: [R] ssanova help

2009-08-31 Thread David Winsemius
On Aug 31, 2009, at 7:19 PM, Josef Fruehwald wrote: Hi all, I'm using the ssanova function from the gss package to fit smoothing spline anovas, and am running into some difficulty. For my data, I have measurements at 2 milisecond intervals for every observation. Every observation does not

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: I get that. Still trying to figure out what the multi nominal labels they used were. That's why I passed on the reference to the seminar summary. So that I could do the research for you? Come on...the usual strategy applies: Look at the

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: Thanks Achim, I discovered the Journal article just after posting this question. It did help explain more. My original inspiration for looking at this package came from a seminar summary given in 2002. Unfortunately , I can not find any actual

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
Um. I did my research. Have been for years. I assume you're referring to Boltman and Chapmanm A multinomial logit model for handicapping horse races included in Efficiency of racetrack betting markets. Page 155 references what they call a multinomial model. From equation 14 in their

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: Um. I did my research. Have been for years. I assume you're referring to Boltman and Chapmanm A multinomial logit model for handicapping horse races included in Efficiency of racetrack betting markets. Page 155 references what they call a

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
It is my understanding that they ARE using a binary model. In fact, they even discuss exploding the model to count second and third place finishers as winners. Otherwise, how can one calculate the probability of the positive class (winner)? If I'm mistaken and they are in fact predicting

Re: [R] Book on R programming

2009-08-31 Thread Norm Matloff
ANJAN PURKAYASTHA wrote: Most books on R I come across describe running statistical procedures in R. Any suggestions on a good book that teaches *programming* in R? Thanks, Anjan I'm in the midst of writing such a book right now. It will be published early next year, by the whimsically

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