Mark,
1) search() is ok for R on my Windows XP: it shows all the loaded packages.
If you want to see all the intalled packages, try library().
2) try detach(package:nameofpackage) to remove it from seach list. To
uninstall it,
simply delete its directory that you can see through searchpaths().
Hello all.
I have a large .txt file whose variables are fixed-columns,
ie, variable V1 goes from columns 1 to 7, V2 from 8 to 23 etc.
This is a 60GB file with 90 variables and 60 million observations.
I'm working with a Pentium 4, 1GB RAM, Windows XP Pro.
I tried the following code just to see
Thank you all for the discussion.
I'll try to summarize the suggestions and give some partial conclusions
for sake of completeness of this thread.
First, I had read the I/O manual but had forgotten the function read.fwf as
suggested by Roger Peng. I'm sorry. But, following manual orientation,
Damien,
I think there isn't such a vendor. Maybe you can try to buy S-Plus.
Maybe you can look for donations to R foundation or reading the
licence term.
HTH,
Rogerio.
- Original Message -
From: Damien Joly [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Thursday, May 18, 2006
While reading the various answers, I've remembered that
the juridic part can't be that so simple. If I'm not fogeting
something, there are some packages in R that has a more
restrictive licence than GPL.
HTH,
Rogerio.
- Original Message -
From: Damien Joly [EMAIL PROTECTED]
To:
Sam,
maybe you'll like to read about some environmetrics packages at
http://cran.r-project.org/src/contrib/Views/Environmetrics.html
or about more specific spatial analysis packages at
http://cran.r-project.org/src/contrib/Views/Spatial.html
Have a good reading and... good luck!
Rogerio.
-
Sachin,
there's another slower but more flexible way than Gabor's solution:
ifelse(x30,30,ifelse(x60,60,x))
HTH,
Rogerio.
- Original Message -
From: Sachin J [EMAIL PROTECTED]
To: R-help@stat.math.ethz.ch
Sent: Tuesday, May 23, 2006 3:40 PM
Subject: [R] conditional replacement
Hi
Peter,
making wavelet analysis requires one of the packages
that you have to install:
wavethresh, waveslim, wavelets or rtw.
HTH,
Rogerio.
- Original Message -
From: Peter Lauren [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Thursday, May 25, 2006 1:23 PM
Subject: [R] Wavelet
Tom,
I'm not sure I understood your question but I'll try to give some direction.
Those lines just plot the wavelet coefficients in a manner adequatelly to
visualize their magnitude in their respective location in time and scale
(frequency).
In this way, those lines are not there because of
Lorenzo,
in order to help you more, you should consider sending to the
list some relevant code with the functions and packages you
are using.
Rogerio.
- Original Message -
From: Lorenzo Bencivelli [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Friday, May 26, 2006 1:21 PM
Subject:
Hello,
does someone knows how can I get the ordenates of a
father wavelet using the package wavethresh?
And using other package? Any hints?
For example, I'd like knowing what's the value of
\phi{j,k}(t), that is, the value of a father wavelet
(from some family) at scale j, shift k, point t.
Amir,
if you try the following code:
require(wavelslim)
data(doppler)
dwt(doppler, wf=la6)
you get:
Error in switch(name, haar = select.haar(), d4 = select.d4(), mb4 =
select.mb4(), : Invalid selection for wave.filter
So, it seems that instead of la8 (default) and haar you can choose also
Gaurav,
I met with below mentioned statistics in paper Stock Index Volatility
Forecasting with High Frequency Data
by Eugenie Hol, Siem Jan Koopman
http://ideas.repec.org/p/dgr/uvatin/20020068.html
I would like to ask that what is Box-Ljung portmantacau statistic based
on N squared
Danilo,
http://cran.r-project.org/other-docs.html#nenglish
Manuel Castejón Limas, Joaquín Ordieres Meré, Fco. Javier de Cos Juez, and
Fco. Javier Martínez de Pisón Ascacibar. Control de Calidad. Metodologia para
el
analisis previo a la modelización de datos en procesos industriales.
Jessica,
I am working with a data file which is the record of precipitation
measurement normaly done every 10 minutes. I would like to check if there
are missing times in my data file.
Is there a function existing able to check for that in R ?
I'd use max(diff(time))==min(diff(time)).
David and Ted,
since David asked about wavelets, there are some examples
at the packages Wavethresh and Waveslim that could be useful.
Waveslim deals with time series that are or are not a power of 2,
but must be regularly spaced.
Wavethresh 3 (http://www.maths.bris.ac.uk/~wavethresh/)
has
Hey,
What we should really compare is the four situations:
R alone
R + awk
R + vilno
R + awk + vilno
and maybe R + SAS Data step
and see what scripts are more elegant (read 'short and understandable')
what do you guys think of creating a R-wiki page for syntax
comparisons among the
17 matches
Mail list logo
