Displaying 20 results from an estimated 3000 matches similar to: "URGENT Help required"
2002 Nov 26
0
scope (was URGENT Help required)
Please use a more meaningful subject. Some might take it as a spam and hit
the delete button.
Objects in the workspace are visible inside functions, but are usually not
directly manipulated inside functions. When you modify an object in the
workspace inside a function, what actually happens is a local copy is made,
reflecting the modifications you made, and leave the one in the workspace
2003 Nov 24
3
Bollinger Bands
Is there a way to create Bollinger Bands without having to loop on the
observations of a time serie?
Any help appreciated
Thanks
2003 Apr 09
3
How to count the number of parameters in a function
I have the following function:
Myfunc <- function(var1,var2,.....,varN)
{ .....
}
In the above function I have a variable number of parameters (N>2). How can
I count how many parameters have been entered?
Any help appreciated
Thanks
Arno
2003 Dec 11
4
Probelm with read.table
Hi All,
I have the following text file (mytextfile.txt)
738307 527178 714456 557955
#N/A 17.42 6.22 4.73
#N/A 17.3 6.23 4.75
#N/A 17.29 6.17 4.7
#N/A 17.07 6.12 4.6
#N/A 17.27 6.19 4.7
#N/A 17.72 6.4 4.78
#N/A 17.12 6.19 4.75
#N/A 17.07 6.15 4.65
#N/A 17.03 6.07 4.64
#N/A 17.38 6.13 4.7
#N/A 17.38 6.13 4.7
#N/A 17.38 6.13 4.7
#N/A 17.38 6.13 4.7
#N/A
2001 Sep 24
1
Problem with read.table and scan
I have just installed R on a Windows NT system. Unfortunately I am unable
to open any of the data files I wish to work with. I have tried using
read.table and scan and to the best of my knowledge am using the correct
syntax. The error message I receive is
Error in file(file, "r") : cannot open file [file name]
I have the data in text files in white-space delimited form. I put them
2001 Oct 18
1
Sgeostat module
Dear Users,
I use Sgeostat to calculate co variogram (function est.variogram with two
variables).
If i inverse the 2 variables in the functions, the co variogram change!
Normaly it is symmetric, isn't it?
Someone could me explain why, or give me an idea to calculate co variogram
in a easy way...
Thanks in advance
Laurent
ps : sorry for my english
Laurent William Dubroca
Centre de
2001 Nov 18
1
plotting overlapping data points
I am just learning to use R. The data from my current project are
integer-valued. I am able to create scatterplots, but I would like to
have some indication on the plots when multiple data points overlap at
the same x-y coordinate. SPSS uses 'petals', and other packages use
jitter. Are there similar options in R? I have not been able to find
any in the documentation.
Thanks very much,
2001 Oct 10
1
Importing many files
Hello Cracks,
we want to import 10 x 365 files containing each 7 variables with 1211
rows. The filenames end with numbers from 1 to 365. We tried a for loop
to import using read.table but we couldn't create the r objects within
the loop. We want each file in an own r-objekt (matrix).
Does anyone know what can be done?
Thanks, Felix
--
Felix Tiefenbacher
Eidg. Institut f?r Schnee- und
2001 Aug 15
1
Re: R: Mailing Lists
Is it true that append=T does not work in assignTable() in RMySQL ?
More specifically: I cannot append a data.frame to an existing table
in a MySQL database, although I can use the same data.frame to
create a new table.
Even more specifically:
> assignTable(con,"employee",dita,append=T)
Error in execStatement.MySQLConnection(con, statement, ...) :
RS-DBI driver: (could not
2001 Dec 07
2
Help for Linear Discriminant Analysis
Dear colleague,
I'd like to compute linear discriminant analysis, using R. In the book Modern applied statistic with Splus (Venables & Ripley, p. 396), lda function is used. Could you tell me where I can find this function? At what site, can I download this library ?
Thank for your help.
Best Regards
Sovan
----------------------------------------------------------------
Prof. Sovan
2002 Feb 19
2
No subject
Hi,
I'm a new R users (although I have a little experience with S+). I am using the latest version (1.4.1) of R on a Windows 2000 system.
I have obtained several of the additional R packages ("modules") and would like to know how to permanently install them. What I am after is something similar to the following in S+
> .First <- function() { module("module_name")
2001 Aug 13
3
subset syntax
Can anyone tell me what's wrong with this command??
xx<-subset(x,LOCAL.NAME==c("Chifumbata","Chikota"),select=c(13,16,19,23,26,2
9,30,33:48))
Warning message:
longer object length
is not a multiple of shorter object length in: LOCAL.NAME ==
c("Chifumbata", "Chikota")
both of the following commands work fine
2001 Sep 06
2
overlay plots
Hi all!
I new to R (I don't know anything about S+ either!)
I've a simple question:
How do I generate overlay plots in R?
So far as I can see the plot(x, y) operator will only give me one graph and
the plot(x ~ y + z) will give me 2 separate plots.
Is there an easy way to overlay or am I missing the obvious?
Any help welcome.
Gerard Keogh
The information in this email, and any
2002 Jun 12
4
Opening all files in a directory
Is there any way that R can be programmed so that it will cycle through
all files in a directory without having to define file names? The reason I ask
is because I will have about 50-100 files in a directory which will be randomly
named. ie: MIDEX, OACES-CO2, ODEN91, etc...
If not...are there any languages out there that will do this sort of things? Or is
there another method you could
2002 Feb 26
1
Cross-tabulation of data from database
I am quite new to R, so please bear over with me if I have problems with the
R terminology.
I want to (try to) use R for some analyses within vegetation ecology, using
the vegan package. I have my data in a postgresql database, and I manage to
get them into R as a dataframe with columns for respectively: Name of the
analysed m2, Name of the species, coverage of species in the square in %. I
2002 Aug 09
2
RMySQL fetch defaults to N=500?
It appears that fetch() gets only the first 500 rows by default. I
don't see this in the documentation, but
timeinfo <- fetch(rs)
gets only 500 rows where
timeinfo <- fetch(rs,n=-1)
gets (correctly) 736 for the same query. Is this an undocumented
feature? I played with this data for an alarming amount of time
before I realized that I was missing a third of the data. I
2004 Apr 07
1
Time Varying Coefficients
I'd like to estimate time varying coefficients in a linear regression using
a Kalman filter.
Even if the Kalman Filter seems to be available in some packages I can't
figure out how to use it to estimate the coefficients.
Is there anyway to do that in R?
Any help appreciated
Thanks
2001 Oct 16
5
help me
Hy,
I have dowloaded the R-version for Windows.
I would want to plot different pictures on the same device, but I am not
able to do it (i.e I would like make 2 qqplot on the same graphic).
Can you help me?
Thanks in advance
Davide
reply to: d.tarfanelli at libero.it
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r-help mailing list -- Read
2002 Aug 21
4
A layman seeks help!
I have been given a 'code' file and a 'data' file which is designed for use
in R.
I have successfully installed the program onto my pc, but am struggling to
actaully use the code. How do i prompt R to read the code file and run?
Any ideas?
Many thanks
Mark
____________
Mark Edwards
mark at miic.org.uk
********************************************
DISCLAIMER:
The
2002 May 27
3
functions and getting them into R
Dear All,
I am new to R and can see it is a very powerful and versatile system for
programming and statistical analysis.
Say I have written a simple function and want to use it on a regular
basis. I have the file as a text file say 'c:\R-funcs\func.txt' how do I
get R to find it on the hard disc or alternatively where is the default
location for looking up functions where I can place