Excellent! Thanks. Just what I need for referring
friends to.
However, your very first feedback:
Under http://www.statmethods.net/input/datatypes.html
you have:
##Vectors
a <- c(1,2,5.3,6,-2,4) # numberic vector
b <- c("one","two","three") # character vector
c <- c(T,T,T,F,T,F) #logical vector
##Refer to elements of a vector using subscripts.
a[2,4] # 2nd and 4th elements of vector
## Err, no! a[c(2,4)] of course!
More {when|if} I spot them!
Best wishes,
Ted.
On 20-Sep-07 13:24:22, Rob Kabacoff wrote:> Hi Folks,
>
> I have created a website with over 70 R tutorials on a wide range of
> subjects. The site is aimed at data analysts who have an idea about
> what they would like to do, but don't know how to do it in R. The site
> should be particularly useful for users of statistical packages like
> SAS, SPSS, Stata, and Systat who would like to get up and running in R
> quickly. However, I think that it will also be useful for even veteran
> R users.
>
> The URL is http://www.statmethods.net
>
> Topics are organized around these headings:
> * The R Interface
> * Data Input
> * Data Management
> * Basic Statistics
> * Advanced Statistics
> * Basic Graphs
> * Advanced Graphs
>
> Topic range from GUIs to creating publication quality output, from
> database access to date values, from t-tests to generalized linear
> models, from barcharts to interactive multivariate graphics.
>
> I hope that you find this useful. Please feel free to link to the site.
>
> Feedback is always welcome.
>
> Sincerely,
>
> Rob Kabacoff, Ph.D.
> robk at statmethods.net
> www.statmethods.net
>
> ______________________________________________
> R-help at r-project.org 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.
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E-Mail: (Ted Harding) <Ted.Harding at manchester.ac.uk>
Fax-to-email: +44 (0)870 094 0861
Date: 20-Sep-07 Time: 15:17:14
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