Displaying 20 results from an estimated 300 matches similar to: "model.tables call fails with "Error in inherits(object, "formula")""
2013 Jan 17
3
Colors in interaction plots
Hi,
I am trying to plot an interaction.plot with different color for each
level of a factor. It has an erratic behavior.
For example, it works for the first interaction.plot below, with the
example from the ALDA book, but not with the other plots, from the NPK
dataset:
# from http://www.ats.ucla.edu/stat/r/examples/alda/ch2.htm
tolerance <-
2010 Apr 21
1
How to obtain the coefficients from a summary of aov ?
Dear Madame, Dear Sir,
I am able to obtain the coefficients from a 'summary' of 'lm', but NOT from a 'summary' of 'aov'.
The following example shows my steps.
## Initialize
rm(list = ls()) # remove (almost) everything in the working environment
utils::data(npk, package="MASS") # get data
model <- yield ~ block + N*P*K
## Using lm
npk.lm <-
2005 May 20
1
Problem with proj
Hi all,
Perhaps this in an inappropriate post, but I've found a bug in proj
I'd like to track down a bit further before making a formal bug report.
The example below shows the problem, if you change the rownames proj
fails. The problem seems to be that there is a mismatch in the rownames
in the qr objects constructed by aov and the rownames that proj is
expecting them to have.
2009 Oct 20
2
Problems importing Unix SAS .ssd04 file to R (Win)
Hello,
I'm trying to import a SAS file made using SAS on Unix. Currently I'm
using SAS on Windows and I'm trying to import that .ssd04 file to R.
The file name of the file is testfile.ssd04 and it is located in
'M:\sasuser'. I'm using Windows XP and R 2.91. Basically what I'm
doing is
############ r code ##############
> library(foreign)
> sashome <-
2008 Mar 28
1
How to schedule R scripts?
useRs,
Is there a way to schedule R scripts? I would like to run certain
scripts three times a day. I'm running R on Windows XP.
> sessionInfo()
R version 2.6.0 (2007-10-03)
i386-pc-mingw32
locale:
LC_COLLATE=Finnish_Finland.1252;LC_CTYPE=Finnish_Finland.1252;LC_MONETARY=Finnish_Finland.1252;LC_NUMERIC=C;LC_TIME=Finnish_Finland.1252
attached base packages:
[1] splines grid stats
2008 Feb 21
1
Selecting timestamps
R-users,
I have two vectors (of timestamps)
d1 <- as.POSIXct(strptime("2.2.2002 07:00", format="%d.%m.%Y %H:%M"))
d2 <- as.POSIXct(strptime("4.2.2002 07:00", format="%d.%m.%Y %H:%M"))
seq1 <- seq(d1, d2, "hours")
seq1
d3 <- as.POSIXct(strptime("2.2.2002 15:22", format="%d.%m.%Y %H:%M"))
d4 <-
2008 Jun 30
2
Plotting question: Problem with strwidth in 2.7.1
R users,
I have a problem with function strwidth in 2.7.1. I'm trying to set
the plot margins in a way that horizontal
column labels will fit to the graph. tmp.t is a list of data.frame
objects. This code works well in 2.6.0.
...snip..
library(gplots)
for (i in names(tmp.t)) {
bmp(filename=paste(i, "_", Sys.Date(), ".bmp", sep=""),
width=1038,
2018 Dec 08
2
Possible encoding bug in sub()
I noticed that sub() gives unexpected results for the following test
case. In the test case, the (initial) input is ASCII but the
replacements are UTF-8. The first sub() produces an UTF-8 result with
an "unknown" Encoding. This makes the result garbled in Windows (no
UTF-8 locale there). The second sub() produces a correct result,
although for some reason it is converted to the native
2010 Feb 08
4
Problem with R on USB-drive
Hi,
I installed R on USB-drive, but when I run Rgui.exe from bin folder, I get
this error:
-----------------------
R version 2.10.1 (2009-12-14)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for
2009 Dec 31
3
XML and RCurl: problem with encoding (htmlTreeParse)
Hi,
I'm trying to get data from web page and modify it in R. I have a
problem with encoding. I'm not able to get
encoding right in htmlTreeParse command. See below
> library(RCurl)
> library(XML)
>
> site <- getURL("http://www.aarresaari.net/jobboard/jobs.html")
> txt <- readLines(tc <- textConnection(site)); close(tc)
> txt <- htmlTreeParse(txt,
2003 Jan 24
1
model.tables and NA?
Hi,
This might be a minor bug, or it could be that I'm just mis-using the tools
(again).
If you modify the example for model.tables to introduce an NA,
N <- c(0,1,0,1,1,1,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,1,0,0)
P <- c(1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,0,0,1,0,1,1,0)
K <- c(1,0,0,1,0,1,1,0,0,1,0,1,0,1,1,0,0,0,1,1,1,0,1,0)
yield <-
2009 Sep 17
1
RCurl and Google Scholar's EndNote references
Hi!
I've performed a Google Scholar Search using a query, let's say "Frank
Harrell", and parsed the links to the EndNote references from the resulting
HTML code. Now I'd like to download all the references automatically. For
this, I have tried to use RCurl, but I can't seem to get it working: I
always get error code "403 Forbidden" from the web server.
2008 Nov 26
1
S4 slot containing either aov or NULL
Dear listmembers,
I would like to define a class with a slot that takes either an object
of class aov or NULL. I have been reading "S4 Classes in 15 pages more
or less" and "Lecture: S4 classes and methods"
#First I tried with list and NULL
setClass(listOrNULL")
setIs("list", "listOrNULL")
setIs("NULL", "listOrNULL")
#doesn't
2018 Feb 07
1
Possible bug in package installation when R_ICU_LOCALE is set
On a Windows computer (other platforms not tested), installing a
package from source may fail if the environment variable R_ICU_LOCALE
is set, depending on the package and the locale.
For example, after setting R_ICU_LOCALE to "fi_FI",
install.packages("seriation", type = "source")
(package version 1.2-3) fails with the following error:
** preparing package for
2003 Apr 17
2
make check failure with R-1.7.0
I'm baffled. When I run make check after installing from source, I
get a Error 2. From my understanding of how these things work, it
would appear to be coming from this (as at the end of base-Ex.Rout.fail:
> has.VR <- require(MASS, quietly = TRUE)
Attaching package 'MASS':
The following object(s) are masked from package:base :
confint confint.lm nclass.FD nclass.scott
2002 Jan 25
1
interpretation of lm
Dear statistitians / R users,
I was told to analyse the effects of the four factors
using lm or update for aov. The following is the
result from lm. As you can see that in the last few
lines enclosed coefficients.
1)Does this mean I can write a formula, like
yield =0.26 + 0.03*H + 1.48*T + 0.04*L + 0.004*C
2) in the two levels design, is there any difference
between I use (-1, 1) to
2018 Apr 26
1
Possible bug in package installation when R_ICU_LOCALE is set
(Belated) thanks for the confirmation, Ista. I just reported this issue on the R bug tracker:
https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=17412
Best regards,
- Mikko
-----Alkuper?inen viesti-----
L?hett?j?: Ista Zahn [mailto:istazahn at gmail.com]
L?hetetty: 7. helmikuuta 2018 17:05
Vastaanottaja: Korpela Mikko (MML)
Kopio: r-devel at r-project.org
Aihe: Re: [Rd] Possible bug in
2009 May 12
4
different results on linux and windows
Dear R experts,
we are preparing an R-package to compute the Oja Median which contains
some C++ code in which random numbers are needed. To generate the random
numbers we use the following Mersenne-Twister implementation:
// MersenneTwister.h
// Mersenne Twister random number generator -- a C++ class MTRand
// Based on code by Makoto Matsumoto, Takuji Nishimura, and Shawn Cokus
// Richard J.
2017 Nov 29
1
2^3 confounded factorial experiment
The following R commands were written:
>help.search("factorial")
>data(npk)
>npk
>coef(npk.aov)
In the output of coef command, please explain me the interpretation of coefficients of block1 to block 6 in this 2^3 confounded factorial experiment.
Thanks.
[[alternative HTML version deleted]]
2003 Jun 26
1
Correct contrast for unreplicated 2K factorial design
Hi all,
I have been trying to reproduce an analysis from Douglas Montgomery?s
book on design and analysis of experiments. Table 6.10 of example 6.2 on
page 246, gives a table as follows:
> NPK <- expand.grid(A=mp,B=mp,C=mp,D=mp)
> Rate <- c(45,71,48,65,68,60,80,65,43,100,45,104,75,86,70,96)
> filtration <- cbind(NPK,Rate)
> filtration
A B C D Rate
1 - - - - 45
2