Displaying 20 results from an estimated 2000 matches similar to: "negative and positive values in diff. colors"
2002 Nov 26
4
how to identify the outliers
Hello R-users,
Is there any more sophisticated way how to identify the dataset
outliers other then seeing them in boxplot? I wanna exclude them from
further analysis and I am interested in their position in my vector
data.
Rado
--
Radoslav Bonk M.S.
Dept. of Physical Geography and Geoecology
Faculty of Sciences, Comenius University
Mlynska Dolina 842 15, Bratislava, SLOVAKIA
tel: +421 2 602
2003 Feb 04
1
test for two samples
Hi R-users,
My question is more methodological one, rather than technical.
I have to samples representing residuals based on two measurements
techniques (resid1,resid2; n=69). I need to compare two samples, to
reject one technique (the worse one), and to keep the one which gave
lower residuals (better one). What to look for? What should I analyse?
Means, variance, std. deviations?
Based on
2002 Aug 30
2
postscript() problem
Hi R-users,
I am using "postscript("xx.eps", horizontal=FALSE, onefile=FALSE,
height=6, width=10, pointsize=10)" and "barplot(xx.dat)" in R to produce
EPS graphics for LATeX document. When checking the graphics with "gv" I
see that it was not produced with full details. The main graphic is
there, but axes labels and titles are missing. While checking the
2003 Sep 23
3
number of distinct values in a dataframe
Hi R-users,
How can I found the number of a distinct values in a data frame
(occurrence of distinct values)? The dataframe consists of several
thousands integer numbers.
Thanks,
Rado
--
Radoslav Bonk M.S.
Dept. of Physical Geography and Geoecology
Faculty of Sciences, Comenius University
Mlynska Dolina 842 15, Bratislava, SLOVAKIA
tel: +421 905 968 127 e-mail: rbonk at host.sk
2003 Sep 04
2
documents for writing functions
Hi,
Does anybody know suitable documents (manuals) on writing user functions
(covering loops, conditions ...) in R? Other than the usually available
manuals.
Thanks,
Rado
--
Radoslav Bonk M.S.
Dept. of Physical Geography and Geoecology
Faculty of Sciences, Comenius University
Mlynska Dolina 842 15, Bratislava, SLOVAKIA
tel: +421 905 968 127 e-mail: rbonk at host.sk
2002 Jul 08
2
matrix: rows to columns conversion
Hi,
I'm new to "R". I have a matrix of 6x12. I need to produce matrix of
12x6, such that rows in new matrix are columns from original matrix, and
columns in a new matrix are rows from the original one. I was playing
with rbind(), and cbind() with no success.
Regards,
-Rado
--
Radoslav Bonk M.S.
Dept. of Physical Geography and Geoecology
Faculty of Natural Sciences, Comenius
2004 Jul 14
3
ROracle - fetch gives empty dataframe
Dear R-users,
I was able to make ROracle package to connect to the DB (Oracle91,
64bit, on Solaris). But after executing siple SQL query, "fetch"
commaned gives me an empty dataframe.
### RORACLE INSTALATION PROCEDURE ###
R CMD INSTALL --configure-args='--enable-extralibs' --enable-oracle32=no
~/tmp/ROracle_0.5-5.tar.gz #since we have 64bit Oracle9i instalation
PROBLEM:
2004 Jul 05
1
R and databases (Oracle)
Dear R users,
I'm working on implementation of hydrometeorological DB in Oracle9i and
would like to use R, as a plotting engine for graphs and maps and also
to perform some non trivial statistics on DB data using R. Thus any
links with examples or efforts on:
- general DB and R cooperation
- Oracle91 and R cooperation
- Oracle PL/SQL and R
are welcomed.
Thanks in advance,
Rado
--
2004 Jul 12
1
ROracle package error
Dear R-users,
In order to use ROracle (v. 0.5-5) package I compiled R-1.9.1 on Linux
(2.4.20-28.9smp) and installed it. I need to use Oracle9i on Solaris.
When executing "library(ROracle)" I got the following error message:
> library(ROracle)
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
2006 May 18
2
matrix transformation into 3 columns II.
Dear R-users
Sorry for posting the previous message too soon before I have finished it.
I have matrix (mprecip) with headers:
> dim(mprecip)
[1] 6268 170
> mprecip
date GilzeRijen Eindhoven Volkel ZuidLimburg Arcen Ubachsberg
1 01/01/1978 NA 0.0 NA 0.1 NA NA
2 01/02/1978 NA 0.0 NA 0.0 NA NA
3
2004 Mar 22
4
R commands formating for LaTeX
Dear R users,
I have to include typical UNIX formated R commands and outputs into the
article using LaTeX.
What is the easiest way to include R prompt commands and text outputs
(including messages) into LaTeX documents? Is there any template or library?
So far I'm trying to produce R commands in LaTeX using LaTeX general
format options.
Thanks,
Rado
2004 Jul 05
4
extract columns from a dataframe
Dear R users,
I'm coming back to R after while. I have a data frame with 200 columns,
each column has a name. How to extract all columns to a new dataset, but
the specified (by names) ones?
I was playing with that for a little bit using the vector syntax but got
several syntax errors.
Thanks,
Rado
2003 Feb 20
3
outliers/interval data extraction
Dear R-users,
I have two outliers related questions.
I.
I have a vector consisting of 69 values.
mean = 0.00086
SD = 0.02152
The shape of EDA graphics (boxplots, density plots) is heavily distorted
due to outliers. How to define the interval for outliers exception? Is
<2SD - mean + 2SD> interval a correct approach?
Or should I define 95% (or 99%) limit of agreement for data interval,
2004 Jul 14
0
ROracle - fetch gives...(corrected SQL code)
Sorry for posting the second time, I corrected the SQL code:
PROBLEM: after executing simple statement, from within R, "fetch"
function gives me the empty dataframe:
### CONNECTION, and SQL QUERY EXECUTION
> ora <- dbDriver("Oracle")
> con <- dbConnect(ora, "rado/only2admin"
> dbListTables(con)
character(0)
> rs <- dbSendQuery(con,
2004 Sep 10
3
Improving on Rice coding
Hello,
I am the author of the Bonk audio compression program... i've just been
looking at your comparrison table, and i noticed bonk gets marginally
better compression than Flac on some files (actually i was
rather surprised to see bonk on the list at all, it's not exactly high
profile :-) ).
Bonk in lossless mode is a pretty naive implementation of a predictive
coder, so the main
2003 Feb 11
2
geoR question from new R user
Hi,
I'm a new R user. My goal is to do a variogram using geoR.
I started by trying to do the example in the geoR Illustrative Session
using my own data.
I am able to read in my Ascii data using: D <- matrix(scan("file.dat",
n=530*3), 530,3, byrow=TRUE).
Then I use: as.geodata(D, coords.col=1:2, data.col=3) to make the
object D geodata.
I check the descriptive statistics,
2004 Apr 21
2
Guaranteed bandwidth per connection
Dear all,
I''ve got a working HTB configuration with iptables, fwmark, SFQ etc.
At the moment, I can mark traffic and give it a maximum bandwidth and a minimum guaranteed bandwidth, so far so good.
What I would like to do is the following:
In stead of defining a min/max for a certain type of traffic (e.g. http, ftp whatever), I would like to define a "minimum guaranteed bandwidth
2005 Dec 13
1
bug in geoR (?)
I've enconuntered this problem with the last cran version of geoR:
> library(geoR)
> day <- rep(1:2, each=5)
> coords <- matrix(rep(runif(10),2), 10, 2)
> data <- rnorm(10)
> data[1] <- NA
> as.geodata(cbind(coords, data, day), realisations=4)
as.geodata: 1 points removed due to NA in the data
Errore in as.geodata(cbind(coords, data, day), realisations = 4) :
2008 Aug 12
1
Geodata object border
Sorry, this is probably quite an easy question, but I'm new to R and couldn't
find the answer anywhere.
I'm using geoR and geoRglm, but can't figure out how to get a border in my
geodata object. Does this need to be defined when I'm importing my data, or
afterwards, and how do I go about doing this?
Thanks
--
View this message in context:
2013 Aug 06
2
data.frame
Hola Javier,
si, y es un factor de Y. Pero ya entendí lo que tenía mal, me falta
convertir Nt a valores de geodata antes de hacer el plot, es decir:
date<-as.geodata(Nt)
plot.geodata(date)
Con relación a la actualización de mi versión de R, no me he animado porque
he tenido problemas con paquetes que no tienen las actualizaciones y no me
corren bien.
Gracias y saludos
Beatriz
2013/8/6