Displaying 20 results from an estimated 3000 matches similar to: "How to create unique factor from two factors? + Boostrap Q"
2009 Aug 11
3
loadings function (PR#13886)
Full_Name: Mike Ulrich
Version: 2.9
OS: Mac OSX
Submission from: (NULL) (69.169.178.34)
The help documentation for loadings() lists more then one parameter. The
function call only expects one parameter. The digits, cutoff, and sort
parameters are not used in the function.
## S3 method for class 'loadings':
print(x, digits = 3, cutoff = 0.1, sort = FALSE, ...)
## S3 method for class
2009 Dec 08
1
{Lattice} help.
Hi All,
I have a 4-dimensional data. I'm using barchart() function from lattice
package. The R code and data are below - code includes one for stack=TRUE
and other for stack=FALSE.
I would like to present the data in another form which would be plotting
Factor3 levels (P, Q, R, S) as two stacked bars (side by side). Like, for
each level of Factor1 there should be two bars: first bar showing
2010 Jan 12
3
How to get minimum value by group
I'd like to get a long data set of minimum values from groups in another data
set.
The following almost does what I want. (Note, I'm using the word factor
differently from it's meaning in R; bad choice of words)
myframe = data.frame(factor1 = rep(1:2,each=8), factor2 =
rep(c("a","b"),each=4, times=2), factor3 = rep(c("x","y"),each=2, times=4),
2009 Dec 03
2
(Grouped + Stacked) Barplot
Hi All,
I have googled and tried finding if someone has ever tried producing
(Grouped + Stacked) Barplot. I couldn't find one.
My data needs to be reshaped, but once it is done it would be something like
this:
Factor1 Factor2 Factor3 Value
A X P 10
A X Q 20
A Y P 20
A Y Q 5
A Z P 20
A Z Q 10
B X P 20
B X Q 10
B
2009 Mar 31
3
Factor Analysis Output from R and SAS
Dear Users,
I ran factor analysis using R and SAS. However, I had different outputs from
R and SAS.
Why they provide different outputs? Especially, the factor loadings are
different.
I did real dataset(n=264), however, I had an extremely different from R and
SAS.
Why this things happened? Which software is correct on?
Thanks in advance,
- TY
#R code with example data
# A little
2013 Mar 07
3
ggpliot2: reordering of factors in facets facet.grid(). Reordering of factor on x-axis no problem.
Hi everyone (again),
before you all start screaming that the reordering of factors has been
discusse on several threads and is not particular to ggplot2, hear me out.
I can easily reorder my x-axis factor in facet.grid() in ggplot2. What I
cannot reorder are the factors represented on the strips. I can see that the
graphs are changing, so I am afraid of what it is I am doing. Why is ggplot2
2013 Mar 06
6
Ggplot2: Moving legend, change fill and removal of space between plots when using grid.arrange() possible use of facet_grid?
Hi,
# For publications, I am not allowed to repeat the axes. I have tried to
remove the axes using:
# yaxt="n", but it did not work. I have not understood how to do this in
ggplot2. Can you help me?
# I also do not want loads of space between the graphs (see below script
with Dummy Data).
# If I could make it look like the examples on the (nice) examples page:
#
2011 Apr 27
2
multiple comparisons on a between factor
Dear list,
im facing an issue of statistical data analysis that I consider myself
unable to resolve in R so i hope to get some valuable insights from you. i
run an ANOVA with four factors; factor4 is an between factor (two different
groups measured), the others are withins (tested across /all/ subjects).
accordingly, my model looks as follows:
fm1
2003 Jan 20
1
make check for R-1.6.2 on IBM AIX
Dear all,
The 'make check' step fails for the pacakge mva on IBM AIX.
The tail of the Rout log file looks like:
> for(factors in 2:4) print(update(Harman23.FA, factors = factors))
Call:
factanal(factors = factors, covmat = Harman23.cor)
Uniquenesses:
height arm.span forearm lower.leg weight
0.170 0.107 0.166
2006 Feb 24
1
Extracting information from factanal()
Dear list members,
I apologize for putting this (probably) very basic question on the
mailing list. I have scanned through the R website (using search) but
did not found an answer.
(code included below)
A factor matrix is simply extracted (which can then subsequently be
exported using write.table) by FACT$loadings[1:6,].
I would also like to specifically extract and export
2005 Apr 05
1
extracting Proportion Var and Cumulative Var values from factanal
Hi R users,
I need some help in the followings:
I'm doing factor analysis and I need to extract the loading values and
the Proportion Var and Cumulative Var values one by one.
Here is what I am doing:
> fact <- factanal(na.omit(gnome_freq_r2),factors=5);
> fact$loadings
Loadings:
Factor1 Factor2 Factor3 Factor4 Factor5
b1freqr2 0.246 0.486 0.145
2006 Aug 11
1
- factanal scores correlated?
Hi,
I wonder why factor scores produced by factanal are correlated, and I'd
appreciate any hints from people that may help me to get a deeper
understanding why that's the case. By the way: I'm a psychologist used
to SPSS, so that question my sound a little silly to your ears.
Here's my minimal example:
***********************************************
v1 <-
2004 Nov 30
1
Info
I am having difficulty obtaining the scores from my principal component
analysis. I have used this method before and have had no problems. The
data set that I am using this time is similar to what I have used in the
past. What do I need to do to my dataset in order for me to obtain these
scores?
R screen says the following message
Error in factanal(covmat = pasa.cov, factors = 4) :
2008 Jun 10
1
Problem with by(... , median)
Hello everyone,
I am new to R, I have been using SAS for a while. Not surprisingly, I
find R much better in graphics, which is publication ready right away.
Recently, I have been trying to calculate some basic statistics using R.
I have a dataset of multiple rows per subject. For example:
Subject Date Factor1 Factor2 Factor3
P1 0.5 1 1 3
P1 1 3 2 5
P1 2 3 5 NA
...
P2 0.5 1 6 4
P2 1 2 NA 7
P2
2009 Jul 30
3
What is the best method to produce means by categorical factors?
I am attempting to replicate some of my experience from SAS in R and assume
there are best methods for using a combination of summary(), subset, and
which() to produce a subset of mean values by categorical or ordinal
factors.
within sas I would write
proc means mean data=dataset;
class factor1 factor2
var variable1 variable2;
RUN;
producing an output with means for each variable by factor
2009 Dec 11
3
Correcting for missing data combinations
I can think of many brute-force ways to do this outside of R, but was
wondering if there was a simple/elegant solution within R instead.
I have a table that looks something like the following:
Factor1 Factor2 Value
A 11/11/2009 5
A 11/12/2009 4
B 11/11/2009 7
B 11/13/2009 8
>From that I need to generate all permutations of Factor1 and Factor2 and
force a 0 for any combination that doesn?t
How to plot 2 continous variables on double y-axis with 2 factors: ggplot2, gplot, lattice, sciplot?
2013 Feb 25
3
How to plot 2 continous variables on double y-axis with 2 factors: ggplot2, gplot, lattice, sciplot?
Hi,
I have a data set with two continous variables that I want to plot MEANS (I
am not intrerested in median values) on a double-y graph. I also have 2
factors. I want the factor combinations plotted in different panes.
Dummy dataset:
mydata <- data.frame(factor1 = factor(rep(LETTERS[1:3], each = 40)),
factor2 = factor(rep(c(1:4), each = 10)),
y1 =
2010 Sep 07
2
repeated measurements ANOVA
Dear list,
i am setting up a GLM for a repeated measurement ANOVA using the lm and
ANOVA function. my design contains four factors with 5, 5, 2 and 2 (=
14) levels, respectively. the data are stored in a data.frame with six
columns, one for the data themselves and the remainings for the factors
where strings indicate the factor levels in each row. now i would like
to restructure this
2002 Nov 29
2
Obtaining the variable names of a glm object
Is names(model1$coef) what you're looking for?
-----Original Message-----
From: Kenneth Cabrera [mailto:krcabrer at epm.net.co]
Sent: 29 November 2002 10:36
Cc: R-help at stat.math.ethz.ch
Subject: [R] Obtaining the variable names of a glm object
Hi, R users!
Suppose I make a model like this:
2003 Mar 06
6
type III Sum Sq in ANOVA table - Howto?
Hello,
as far as I see, R reports type I sums of squares. I'd like to get R to
print out type III sums of squares.
e.g. I have the following model:
vardep~factor1*factor2
to get the type III sum of squares for factor1 I've tried
anova(lm(vardep~factor2+factor1:factor2),lm(vardep~factor1*factor2))
but that didn't yield the desired result.
Could anyone give me a hint how to proceed?