Re: [R] Extracting a website text content using R
All right, my question is, if there is(are) such function(s), what is(are) it(they) ? Best, Leon 2007/8/1, Bert Gunter <[EMAIL PROTECTED]>: > > Yes, there are. > > (Please see and follow the posting guide if you wish to obtain something > more specific) > > > Bert Gunter > Genetech Nonclinical Statistics > > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Am Stat > Sent: Wednesday, August 01, 2007 2:19 PM > To: r-help@stat.math.ethz.ch > Subject: [R] Extracting a website text content using R > > Dear useR, > > Just wandering whether it is possible that there is any function in R > could > let me get the text contents for a certain website. > > Thanks a lot! > > Best, > > Leon > > [[alternative HTML version deleted]] > > __ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Extracting a website text content using R
Dear useR, Just wandering whether it is possible that there is any function in R could let me get the text contents for a certain website. Thanks a lot! Best, Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Order by the columns
Dear useR, I have a data matrix, it has n columns, each column is a two-level variable with entires -1 and +1. They are randomly generated, now I want to order them like (for example, 5 columns case) --- - - -- - -- . (first several rows are the samples with all variables in low level) + - -- - + - --- . - + -- - + + -- - + + + + + Is there any function in R that could let me do this order by Var1 then order by Var2 then...order by Var n Thanks very much in advance! Best, Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] data order by different level of variables
Dear useR, I have a data matrix, it has n columns, each column is a two-level variable with entires -1 and +1. They are randomly generated, now I want to order them like (for example, 5 columns case) --- - - -- - -- . (first several rows are the samples with all variables in low level) + - -- - + - --- . - + -- - + + -- - + + + + + Is there any function in R that could let me do this order by Var1 then order by Var2 then...order by Var n Thanks very much in advance! Best, Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] set up automatic running of R
Hi useR, I am trying to find how to schedule an automatic run of R periodically, I have written some scripts to extract data which are updated monthly on another server, my os is xp. The goal is that my script will run at a scheduled time every month and record the results to some directories. Now the scripts are done, only thing I need is to know how to let R run my scripts at a certain time, say the first Sunday of each months. Could anyone give me some clues? Thanks a million in advance! Best, Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Position of a specific letter in a character string
Cool, thanks a lot! It works great!
Best,
Leon
- Original Message -
From: Tim Calkins
To: Am Stat ;
Sent: Wednesday, November 01, 2006 6:55 PM
Subject: Re: [R] Position of a specific letter in a character string
here's one way
> x <- "1234_5"
> regexpr("_",x)
[1] 5
attr(,"match.length")
[1] 1
so
> regexpr("_",x)[1]
[1] 5
there's probably an easier way, but this works.
tim
On 11/2/06, Am Stat <[EMAIL PROTECTED]> wrote:
Dear useR,
x is a character string
In R:
> x<- '32159_3'
Which function could enable me to determine the position of underscore in
x? In here, the underscore is on the 6th digit of x.
---
Yours Sincerely
Leon
[[alternative HTML version deleted]]
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Tim Calkins
0406 753 997
[[alternative HTML version deleted]]
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] Position of a specific letter in a character string
Dear useR, x is a character string In R: > x<- '32159_3' Which function could enable me to determine the position of underscore in x? In here, the underscore is on the 6th digit of x. --- Yours Sincerely Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] plot a new picture against an old one to see the difference between them
Dear Roger, Thanks, that's really helpful, do you know how to deal with it if the two plots are generated by plot(), not by contour(). Best, Leon - Original Message - From: "roger koenker" <[EMAIL PROTECTED]> To: "Am Stat" <[EMAIL PROTECTED]> Sent: Monday, September 04, 2006 8:06 PM Subject: Re: [R] plot a new picture against an old one to see the difference between them > for the second call to contour use the argument add=TRUE. > > On Sep 4, 2006, at 6:42 PM, Am Stat wrote: > >> Hello, useR:, >> >> Suppose I have two plots made by using contour() function, say Cont1 and >> Cont2 respectively. >> >> They have slightly difference because of the two slightly different data >> I used. >> >> I want to see the difference between them so I want to plot Cont2 on >> Cont1, are there any methods to plot it without filling the frame of >> Cont1 totally of Cont2. >> I mean, how I can integreate the two plots together that they kind of >> have weighted colors? >> >> Thanks very much in Advance! >> >> Leon >> [[alternative HTML version deleted]] >> >> __ >> R-help@stat.math.ethz.ch mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting- >> guide.html >> and provide commented, minimal, self-contained, reproducible code. > __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] plot a new picture against an old one to see the difference between them
Hello, useR:, Suppose I have two plots made by using contour() function, say Cont1 and Cont2 respectively. They have slightly difference because of the two slightly different data I used. I want to see the difference between them so I want to plot Cont2 on Cont1, are there any methods to plot it without filling the frame of Cont1 totally of Cont2. I mean, how I can integreate the two plots together that they kind of have weighted colors? Thanks very much in Advance! Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] How to draw the decision boundaries for LDA and Rpart object
Dr. Ripley, Thanks very much for your help. I have used your partition tree and it works well. I am not familiar with the 'tree' package but I found that the threshold to make a cut returned by tree and rpart is almost the same value. Does that mean the decision boundaries for Rpart and Tree are the same for a same data when using the default value of parameters, no matter what the structure of data is? Thanks very much! Leon - Original Message - From: "Prof Brian Ripley" <[EMAIL PROTECTED]> To: "Am Stat" <[EMAIL PROTECTED]> Cc: Sent: Wednesday, August 09, 2006 3:04 AM Subject: Re: [R] How to draw the decision boundaries for LDA and Rpart object > On Wed, 9 Aug 2006, Am Stat wrote: > >> Hello useR, >> >> Could you please tell me how to draw the decision boundaries in a >> scatterplot of the original data for a LDA or Rpart object. > > There are examples in MASS (the book). > >> For example: >> > library(rpart) >> >fit.rpart <- rpart(as.factor(group.id)~., data=data.frame(Data) ) >> >> >> How can I draw the cutting lines on the orignial Data? >> >> Or is there any built in functions that can read the rpart object >> 'fit.rpart' to do that? > > See partition.tree in package tree. > >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > -- > Brian D. Ripley, [EMAIL PROTECTED] > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ > University of Oxford, Tel: +44 1865 272861 (self) > 1 South Parks Road, +44 1865 272866 (PA) > Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] How to draw the decision boundaries for LDA and Rpart object
Hello useR, Could you please tell me how to draw the decision boundaries in a scatterplot of the original data for a LDA or Rpart object. For example: > library(rpart) >fit.rpart <- rpart(as.factor(group.id)~., data=data.frame(Data) ) How can I draw the cutting lines on the orignial Data? Or is there any built in functions that can read the rpart object 'fit.rpart' to do that? Thanks very much in advance! Leon [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
