Re: [R] please recommend hands-on books on classification, data-mining and machine learning with R?

Seriously? Did you not receive the reply to the same question from Uwe Ligges at 12:31pm today? You are overfishing the common pool, bro. 2009/6/19 Uwe Ligges : Most of the times it is advisable to get a good book about the statistical concepts (multivariate statistics or data-mining) and anoth

Re: [R] please recommend hands-on books on classification, data-mining and machine learning with R?

Seriously? Did you not receive the reply to the same question from Uwe Ligges at 12:31pm today? You are overfishing the common pool, bro. 2009/6/19 Uwe Ligges : Most of the times it is advisable to get a good book about the statistical concepts (multivariate statistics or data-mining) and anoth

Re: [R] please recommend hands-on books on classification, data-mining and machine learning with R?

Seriously? Did you not receive the reply to the same question from Uwe Ligges at 12:31pm today? You are overfishing the common pool, bro. 2009/6/19 Uwe Ligges : Most of the times it is advisable to get a good book about the statistical concepts (multivariate statistics or data-mining) and anoth

Re: [R] Extract Stata estimates to use in R

Might as well answer myself in case anyone has this problem again... To save a variance-covariance matrix from Stata as a CSV file that can be read into R, it's something like: regress mpg weight foreign matrix V=e(V) svmat V,names(vvector) outsheet vvector* using vv1.csv, replace > -Origi

[R] Extract Stata estimates to use in R

Before you flame me, the reason I am using Stata is that I didn't get a response to my query below, so I have my cluster robust covariance matrix in Stata [one line of code], but now I need to take all those parameter estimates and put them back in R so I can simulate properly. Anyone done this

[R] Probit cluster-robust standard errors

If I wanted to fit a logit model and account for clustering of observations, I would do something like: library(Design) f <- lrm(Y1 ~ X1 + X2, x=TRUE, y=TRUE, data=d) g <- robcov(f, d$st.year) What would I do if I wanted to do the same thing with a probit model? ?robcov says the input model mus

[R] Confusion going from Stata -> R

Dear list, I am trying to replicate some Stata results but having a tough time doing it in R. The goal is to obtain a difference-in-difference estimate in a model with simple state fixed effects. The "state" variable is a factor, but some levels are missing. It appears that Stata automaticall

[R] Help using smooth.spline with zoo object

Can someone please show me how to smooth time series data that I have in the form of a zoo object? I have a monthly economies series and all I really need is to see a less jagged line when I plot it. If I do something like s <- smooth.spline(d.zoo$Y, spar = 0.2) plot(predict(s,index(d.zoo)),

Re: [R] Help pasting string as object name

t;- paste("d$density", st, sep=".") # easier than mapply etc. > > more importantly, in the for loop you should not be incrementing i > manually (as in a while loop), it's already taken care of by the for{} > construct. > > > > HTH, > > baptiste

[R] Help pasting string as object name

I have a data frame containing monthly observations of the 'density' of each US state, recorded in variables named "density.AL", "density.AK", "density.AZ", and so on for all 50 states. The data frame (called d) also contains a variable called "Date" which is encoded as a string in the format "J

Re: [R] generalized Poisson regression

Not 100% sure what you are looking for, but have a look at the Generalized Event Count model in the Zelig package. It will also let you fit a Poisson and other event count models by MLE. > -Original Message- > From: azam...@isrt.ac.bd > Sent: Tue, 24 Mar 2009 23:26:59 +0600 > To: r-help

[R] Efficiently create dummy

What's the neat way to create a dummy from a list? The code below is not replicable, but hopefully self-explanatory... d$treatment<-rep(1,length(d)) notreat<-c("AR", "DE", "MS", "NY", "TN", "AK", "LA", "MD", "NC", "OK", "UT", "VA") #i would really like this to work: d$treatment[d$st==any(notre

Re: [R] can I draw 3D plot like this using R?

Sure, you can do that. Check out wireframe() in the lattice library. > -Original Message- > From: fwa...@gmail.com > Sent: Wed, 11 Mar 2009 20:35:22 -0700 (PDT) > To: r-help@r-project.org > Subject: [R] can I draw 3D plot like this using R? > > hi, all > > I am looking at R package RGL

[R] Importing zoo object ("index contains NAs")

Dear list, I have an irregular time series saved and exported as a zoo object. What is the trick to force zoo to ignore the missing dates when reading it back in? Thanks. > str(g) ‘zoo’ series from 1948-11-02 to 2012-11-06 Data: num [1:14881, 1:8] 1 0 0 0 0 0 0 0 0 0 ... - attr(*, "dimnames")