[R] \include-mechanism in Sweave?

2007-06-29 Thread Dietrich Trenkler
Dear HelpeRs,

I'm very fond of Sweave and I use it as often as possible.  It'a a pity
I can't use it for larger projects or can I?

For instance suppose I have three files file1.rnw, file2.rnw and
file3.rnw with Sweave code.  Working on file2.rnw I whould like to
exclude file1.rnw and file3.rnw temporarily and joining all of them
later.  This amounts to a mechanism similar to using LaTeX's \include
command.  *Is* there a way to achieve that?

Thank you in advance.

D. Trenkler

-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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[R] How to compute Wilk's Lambda

2007-06-19 Thread Dietrich Trenkler
Dear helpeRs,

the following data set comes from Johnson/Wichern: Applied Multivariate
Statistical Analysis, 6th ed, pp. 304-306.

/X - structure(c(9, 6, 9, 3, 2, 7), .Dim = as.integer(c(3, 2)))
Y - structure(c(0, 2, 4, 0), .Dim = as.integer(c(2, 2)))
Z - structure(c(3, 1, 2, 8, 9, 7), .Dim = as.integer(c(3, 2)))/

I would like to compute Wilk's Lambda in R, which I know is 0.0385. How
can I do that? I tried

/U - rbind(X,Y,Z)
m - manova(U~rep(1:3, c(3, 2, 3)))
summary(m,test=Wilks)/

which gives


/ Df  Wilks approx F num Df den Df  Pr(F)
rep(1:3, c(3, 2, 3))  1  0.162   12.930  2  5 0.01057 *
Residuals 6
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1/


I suppose the argument rep(1:3, c(3, 2, 3)) in manova() is not appropriate.

Any help is very much appreciated.

Dietrich   

-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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[R] Files in EViews format

2006-11-17 Thread Dietrich Trenkler
Dear HelpeRs,

I wonder if anyone knows of ways to read  EViews file types.
I did not find a function in the package 'foreign' and a search query
submitted to http://search.r-project.org was not successful.

Any hint is very much welcome.

Dietrich Trenkler 

-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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[R] Measurements of 3000 criminals

2006-10-26 Thread Dietrich Trenkler
Hallo everyone,

excuse me if this is not a genuine R question but I do not know where to
ask else.

Referring  to e.g.

https://stat.ethz.ch/pipermail/r-help/2004-December/062114.html

I wonder if these measurements of 3000 criminals (raw data) are
available anywhere.  At least I didn't find them in the R datasets
package or by means of Google.  What I did find was a table of
frequencies of the central values for *grouped* classifications (finger
lenghts) in the Handbook of Small Data Sets.

Thank you in advance.

D. Trenkler  

-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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Re: [R] putting stuff into bins...

2006-09-26 Thread Dietrich Trenkler
Federico Calboli schrieb:
 Hi All,

 I have a vector of data, a vector of bin breakpoints and I want to put my 
 data 
 in the bins and then extract fanciful informations like the mean value of 
 each bin.

 I know I can write my own function, but I would have thought that R should 
 have 
 somewhere a function that took as arguments something like (data, breaks, 
 what 
 to do with the data in the bins). I surey could not find it trawling the 
 R-help 
 archives though.

 If such a function exists I'd be grateful to anyone pointing it out to me.

 Cheers,

 Fede

   
The following should be of help:

bd384 - c(2.968, 2.097, 1.611, 3.038, 7.921, 5.476, 9.858,
1.397, 0.155, 1.301, 9.054, 1.958, 4.058, 3.918, 2.019, 3.689,
3.081, 4.229, 4.669, 2.274, 1.971, 10.379, 3.391, 2.093,
6.053, 4.196, 2.788, 4.511, 7.3, 5.856, 0.86, 2.093, 0.703,
1.182, 4.114, 2.075, 2.834, 3.698, 6.48, 2.36, 5.249, 5.1,
4.131, 0.02, 1.071, 4.455, 3.676, 2.666, 5.457, 1.046, 1.908,
3.064, 5.392, 8.393, 0.916, 9.665, 5.564, 3.599, 2.723, 2.87,
1.582, 5.453, 4.091, 3.716, 6.156, 2.039)
cut(bd384,0:11)
split(bd384,cut(bd384,0:11))
sapply(split(bd384,cut(bd384,0:11)),mean)

D.Trenkler


-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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Re: [R] Statitics Textbook - any recommendation?

2006-09-21 Thread Dietrich Trenkler
Hi all,

I am very fond of Using R for Introductory Statistics
by John Verzani, 2005, Chapman  Hall.

Regards

D. Trenkler

-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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[R] S in cor.test(..., method=spearman)

2006-09-13 Thread Dietrich Trenkler
Dear HelpeRs,

I have some data:

ice - structure(c(0.386, 0.374, 0.393, 0.425, 0.406, 0.344,
0.327, 0.288, 0.269, 0.256, 0.286, 0.298, 0.329, 0.318, 0.381,
0.381, 0.47, 0.443, 0.386, 0.342, 0.319, 0.307, 0.284, 0.326,
0.309, 0.359, 0.376, 0.416, 0.437, 0.548, 41, 56, 63, 68,
69, 65, 61, 47, 32, 24, 28, 26, 32, 40, 55, 63, 72, 72, 67,
60, 44, 40, 32, 27, 28, 33, 41, 52, 64, 71), .Dim = as.integer(c(30,
2)))

Using

cor.test(ice[,1],ice[,2],method=spearman)

I get (apart from a warning message due to ties)

Spearman's rank correlation rho

data:  ice[, 1] and ice[, 2]
S = 769.4403, p-value = 1.543e-08
alternative hypothesis: true rho is not equal to 0
sample estimates:
 rho
0.828823

I wonder what S is. I presume it is

sum((rank(ice[,1])-rank(ice[,2]))^2),

but this delivers  768.5. Is it the way ranks are computed in cor.test?


Thank you in advance.

D. Trenkler  

-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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[R] dotchart: Gap between text and chart

2006-03-13 Thread Dietrich Trenkler
I have some data which I would like to display with dotchart. The
labels are very long, so the chart becomes too small. Setting cex=0.7
seems to be a good compromise, but the gap between the text and the
chart still is too large. I did not find a gap parameter in the
description of dotchart...

Thanks for any help.

D. Trenkler


a - structure(c(103.35, 36.73, 55.09, 302.66, 68.54, 35.46,
138.65, 25.21, 110.85, 6.66, 46.57, 70.23), .Names = 
c(Nahrungsmittel und alkoholfreie Getraenke,
Alkoholische Getraenke, Tabakwaren, Bekleidung und Schuhe,
Wohnungsmieten, Energie, Einrichtungsgegenstaende, 
Gesundheitspflege,
Verkehr, Nachrichtenuebermittlung, Freizeit, Unterhaltung  und 
Kultur,
Bildungswesen, Beherbergungs und Gaststaettendienstleistungen,
Andere Waren und Dienstleistungen))

dotchart(sort(a))
dotchart(sort(a),cex=0.7)


-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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Re: [R] LaTeX in R graph

2006-02-28 Thread Dietrich Trenkler
[EMAIL PROTECTED] schrieb:

Hello,
I would like to know if it is possible to insert LaTeX typesetting in R output.
I want to obtain a graph with LaTeX label in order to incorporate it as
postscript or pdf,

x-seq(0,1,length=100)
y-x*x
plot(x,y,xlab=$X$,ylab=$X^2$)

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Hi,

have a look at the psfrag package.

D. Trenkler

-- 
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Rolandstr. 8; D-49069 Osnabrueck, Germany
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[R] DUPLEX

2005-12-16 Thread Dietrich Trenkler
Hi all,

not to invent the wheel a second time I wonder if  someone out
there has programmend Snee's CADEX algorithm (Validation
of regression models: Methods and examples, Technometrics 19,
415-428).

Thank you in advance.

D. Trenkler



-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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Re: [R] The gamma function and infinity

2005-12-05 Thread Dietrich Trenkler
Florent Bresson schrieb:

I have to calculate some formula like:

gamma(x)/(gamma(x+y)

and I observed that for relatively big values of x, R
returns infinity and so cannot compute the formula. Is
it possible to force  R to give the real value of
gamma(x) instead of Inf ?

thanks

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Have a look at lgamma.

hth

D. Trenkler


-- 
Dietrich Trenkler c/o Universitaet Osnabrueck 
Rolandstr. 8; D-49069 Osnabrueck, Germany
email: [EMAIL PROTECTED]

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