Displaying 20 results from an estimated 900 matches similar to: "Help to compare..."
2004 May 27
1
Statistics Avec R (Vincente Zoonekynd): portuguese translation
Dears friends,
I have been translating and extended, with educational porposes only, the available material in the www
(http://zoonek2.free.fr/UNIX/48_R/all.html) "Statistcs avec R" for the Portuguese of Brazil.
I consider the material very good and would like to share this work with anothers users R.
Already I translated and I extended two chapters: Introduction to the R and analysis
2004 May 27
2
ANOVA and contrasts
Dears members of R list,
I would like that a more experienced R user help me to complete
this analysis:
r = gl(3, 8, label = c('r1', 'r2', 'r3'))
e = rep(gl(2, 4, label = c('e1', 'e2')), 3)
y = c(26.2, 26.0, 25.0, 25.4, 24.8, 24.6, 26.7, 25.2, 25.7, 26.3, 25.1, 26.4,
19.6, 21.1, 19.0, 18.6, 22.8, 19.4, 18.8, 19.2, 19.8, 21.4, 22.8, 21.3)
df =
2005 Jul 08
5
Help with Mahalanobis
Dear R list,
I'm trying to calculate Mahalanobis distances for 'Species' of 'iris' data
as obtained below:
Squared Distance to Species From Species:
Setosa Versicolor Virginica
Setosa 0 89.86419 179.38471
Versicolor 89.86419 0 17.20107
Virginica 179.38471 17.20107 0
These distances were obtained with proc 'CANDISC'
2004 Dec 17
2
Doubts about chi-square distribution
Dear list,
For educational purposes I have been working with the script below.
I have a observation:
line 31
#CScal[i] = (amo^2) # IT IS WRONG, I KNOW, BUT IT MAKE R TO CRASHES!
I'm thinking this is a possible bug in the R!
And I have a couple of doubts:
1) line 51
#curve(dchisq(x, n-1), add = T, col = 'red'
I think that it is correct, but the function no
2007 Jul 23
2
doubt about options(graphics.record=T)
Hi all,
I've been using R under WindowsXP.
So, where the R stores the graphic archives (don't saved) if I use the option
options(graphics.record=T) inside of Rprofile.site file?
Regards,
--
/////\\\\\/////\\\\\/////\\\\\/////\\\\\
Jose Claudio Faria
Brasil/Bahia/UESC/DCET
Estatistica Experimental/Prof. Titular
joseclaudio.faria em terra.com.br
joseclaudio.faria em
2006 Aug 04
2
Doubt about Student t distribution simulation
Dear R list,
I would like to illustrate the origin of the Student t distribution using R.
So, if (sample.mean - pop.mean) / standard.error(sample.mean) has t
distribution with (sample.size - 1) degree free, what is wrong with the
simulation below? I think that the theoretical curve should agree with
the relative frequencies of the t values calculated:
#== begin options=====
# parameters
2005 Oct 14
2
Help with lattice, regressions and respective lines
# Dear R list,
#
# I'm needing help with lattice, regression and respective lines.
# My data is below:
bra = gl(2, 24, label = c('c', 's'))
em = rep(gl(3, 8, label = c('po', 'pov', 'ce')), 2)
tem = rep(c(0, 0, 30, 30, 60, 60, 90, 90), 6)
tem2 = tem^2
r = rep(1:2, 24)
y = c(40.58, 44.85, 32.55, 35.68, 64.86, 51.95, 42.52, 52.21,
2005 Aug 04
4
An small suggestion for the R team
Hi all,
I would like to suggest that all R functions/etc like:
codes-deprecated
grid-internal
ns-alt
ns-dblcolon
ns-hooks
ns-internals
ns-lowlev
ns-reflect.Rd
tools-internal
ts-defunct
utils-deprecated
utils-internal
... and another
i.e, function/word separate for '-'
were all substituted by
codes_deprecated
grid_internal
ns_alt
2016 Apr 09
2
Arguments to utils:::menuInstallPkgs
Dears,
Is it possible (in any viable way) to pass arguments to the base function
(install.packages I think) using the utils:::menu?
For example:
> utils:::menuInstallPkgs(loc=.libPaths()[2])
> utils:::menuInstallLocal(loc=.libPaths()[2])
Thanks,
///\\\///\\\///\\\///\\\///\\\///\\\///\\\///\\\
Jose Claudio Faria
Estatistica
UESC/DCET/Brasil
joseclaudio.faria at gmail.com
Telefones:
2007 Jun 05
2
biplot package
Dears,
I've been learning biplot (Gabriel, 1971) and I found the function 'biplot', inside of the package 'stats',
useful but, a bit limited.
So, I'm thinking to start a colaborative package to enhance this methods to other multivariate methods. In this
way, I would like to start it, making public a new function (biplot.pca, still in development, but running)
that make
2005 Jul 10
2
Help to make a specific matrix
Dear R users,
The solution is probably simple but I need someone to point me to it.
How can I to generate a matrix from a numeric sequence of 1:10 like 'A' or 'B'
below:
A)
|--------------------|
| 1 2 3 4 5 |
|--------------------|
| 1 | 0 |
| 2 | 1 0 |
| 3 | 2 5 0 |
| 4 | 3 6 8 0 |
| 5 | 4 7 9 10 0 |
|--------------------|
2016 Apr 09
0
Arguments to utils:::menuInstallPkgs
On 09/04/2016 8:14 AM, Jose Claudio Faria wrote:
> Dears,
>
> Is it possible (in any viable way) to pass arguments to the base function
> (install.packages I think) using the utils:::menu?
No, but why not just call install.packages directly? (If you are using
Rgui in Windows, you can add menu items using winMenuAddItem).
Duncan Murdoch
> For example:
>
> >
2009 Sep 22
2
A couple of suggestions: source function (package base)
Hi,
I've been calling the function "source" (package base) from Tinn-R editor to
send files, marked blocks and selections to R interpreter because it avoids a
lot of problems related with input/output synchronization in the Rgui output!
The new RGedit plugin is also using this function in this way, and we are
finishing a new version of a plugin to Vim (Vim-R-plugin2) which uses
2015 Jul 19
3
update.packages(checkBuilt=TRUE, ask=FALSE): possible bug
Hello,
> version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status Patched
major 3
minor 2.1
year 2015
month 07
day 16
svn rev 68681
language R
version.string R version 3.2.1 Patched (2015-07-16 r68681)
nickname World-Famous Astronaut
I
2010 Apr 21
2
Help: formatting the result of 'cut' function
Dear list,
I would like to format the result of the 'cut' function to perform a subsequent
frequency distribution table (fdt) suitable for publications.
Below an reproducible example:
set.seed(1)
x <- c(rnorm(1e3, mean=10, sd=1), 50, 100)
start <- 0
end <- 110
h <-10
c1 <- cut(x, br=seq(start, end, h), right=TRUE)
levels(c1)
# I get:
# [1] "(0,10]"
2005 Sep 12
1
Help with a more flexible funtion for multiple comparisio n of means
Jose -
Before implementing SNK and Duncan's, you may want to be aware of some
criticisms of these methods:
>From Hsu (1996),
"Newman-Keuls multiple range test is not a confident inequalities method and
cannot be recommended."
"Duncan's multiple range test is not a confident inequalities method and
cannot be recommended either. In the words of Tukey (1991),
2010 Nov 22
1
Tinn-R 2.3.7.0 released
Dears users,
A new version of Tinn-R was released today. Below details:
2.3.7.0 (Nov/22/2010)
* Bug(s) fixed:
- A bug related with the intermittent loose of connection
(or appear to freeze) with Rgui.exe was fixed.
* The versions 2.3.6.4, 2.3.6.5, 2.3.6.6 and 2.3.6.7 restricted to
pre-release testers.
* The Application options interface was a bit changed:
- The
2005 Nov 06
1
R (2.2.0), R-DCOM and Delphi
In response to a few private e-mails, here a summary of using Delphi, R-DCOM
and R 2.2.0
1) As Earl Glynn noted
( http://finzi.psych.upenn.edu/R/Rhelp02a/archive/50705.html ),
there were a few paths specific to my installation in
http://www.menne-biomed.de/download/RDComDelphi.zip
leading to path errors on compilation. Hopefully, this has been corrected in
the new zip file.
2) Always check if
2009 Apr 08
2
Doubt about aov and lm function... bug?
Hi,
The below very strange:
# a) aov function
av <- aov(Sepal.Length ~ Species, data=iris)
# Error in parse(text = x) :
# unexpected symbol in "Sepal(Sepal.Length+Species)Length"
av <- aov(iris[, 1] ~ iris[, 5])
# summary(av)
# Df Sum Sq Mean Sq F value Pr(>F)
# iris[, 5] 2 63.2 31.6 119 <2e-16 ***
# Residuals 147 39.0 0.3
# ---
2005 May 24
1
Contingency tables from data.frames
Dear list,
I'm trying to do a set of generic functions do make contingency tables from
data.frames. It is just running "nice" (I'm learning R), but I think it can be
better.
I would like to filter the data.frame, i.e, eliminate all not numeric variables.
And I don't know how to make it: please, help me.
Below one of the my functions ('er' is a mention to EasieR,