Displaying 20 results from an estimated 2000 matches similar to: "rotate column names in large matrix"
2011 May 17
4
subsetting a list of dataframes
Hello All,
I have a list of dataframes, and I need to subset it by keeping only those
dataframes in the list that meet a certain criterion. Specifically, I need
to generate a second list which only includes those dataframes whose number
of rows is > 1.
Could someone suggest how to do this? I have come close to what I need with
loops and such, but there must be a less clumsy way...
Many
2010 Nov 11
1
exploratory analysis of large categorical datasets
Dear List,
I am looking to perform exploratory analyses of two (relatively) large
datasets of categorical data. The first one is a binary 80x100 matrix, in
the form:
matrix(sample(c(0,1),25,replace=TRUE), nrow = 5, ncol=5, dimnames = list(c(
"group1", "group2","group3", "group4","group5"), c("V.1", "V.2", "V.3",
2011 Oct 03
1
function recode within sapply
Dear List,
I am using function recode, from package car, within sapply, as follows:
L3 <- LETTERS[1:3]
(d <- data.frame(cbind(x = 1, y = 1:10), fac1 = sample(L3, 10,
replace=TRUE), fac2 = sample(L3, 10, replace=TRUE), fac3 = sample(L3,
10, replace=TRUE)))
str(d)
d[, c("fac1", "fac2")] <- sapply(d[, c("fac1", "fac2")], recode,
"c('A',
2011 Aug 23
1
subsetting a list of matrices
Hi all,
I have an object that looks (roughly) like the following:
l <- list(a = matrix(rnorm(9), 3), b = matrix(rnorm(9), 3), c =
matrix(rnorm(9), 3))
l$a[3,] <- sample(c("Message 1", "Message 2", "Message 3"))
l$b[3,] <- sample(c("Message 1", "Message 2", "Message 3"))
l$c[3,] <- sample(c("Message 1",
2010 Nov 19
1
negative axis values in image() and scalebar in cor.plot() {psych}
Dear List,
I sent a related message yesterday, but did not receive it through the
mailing list; on the R-help archives it reads as "An embedded and
charset-unspecified text was scrubbed...". So here it is again, with the
(little) progress I have made since then. Any help would be greatly
appreciated!
I am working with a relatively large correlation matrix (~1600*1600), which
I am
2010 Nov 24
1
diverting output from nested loops
Dear List,
I have a series of nested loops with the structure shown below, and I am
struggling to figure out how to divert output to folders created with
dir.create() within the loops.
What I need is for the output to end up as topNameK/subNameL/objNameM.pdf;
what I get instead is a series of directories topNameK/, directories
subNameL/, and files objNameM.pdf, all in the working directory. Any
2011 Jun 05
2
kronecker sum
Dear All,
Could someone please suggest how to find the Kronecker sum of two 2x2
matrices,
i.e. given two matrices:
-A A
a -a
and
-B B
b -b
I need:
-A-B A B 0
a -a-B 0 B
b 0 -A-b A
0 b a -a-b
Many thanks,
Lara
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2012 Feb 28
2
from data.frame to Venn diagram
Hello All,
I have a data.frame with this structure:
m <- matrix(sample(c(rep('yes', 10, replace = TRUE), rep('no', 10,
replace = TRUE), NA), 500, replace = TRUE), nrow = 100, ncol = 5)
colnames(m) <- colnames(m, do.NULL = FALSE, prefix = "col")
m <- as.data.frame(m)
I need to generate a Venn diagram from this data.frame, displaying the
various intersections of
2008 Mar 05
2
Correlation matrix one side with significance
Hi there!
In my case,
cor(d[1:20])
makes me a good correlation matrix.
Now I'd like to have it one sided, means only the left bottom side to be
printed (the others are the same) and I'd like to have * where the
p-value is lower than 0.05 and ** lower than 0.01.
How can I do this?
And another thing: Is there a way to output that table as a latex table?
Thanks,
Martin
--
Ihr
2010 Mar 26
7
seed data
Hi
I am using seed_fu to seed initial data to tables
(http://github.com/mbleigh/seed-fu) . And in db/fixtures/state.rb
I have values like (I am filling only two data for simplicity)
State.seed_many(:name, :abbr,:fips,:country_id, [
{ :name => "Alberta", :abbr => ''AB'',:fips => ''01'', :country_id =>
2 },
{ :name =>
2002 May 15
1
Permission problems with samba 2.2.x
Hello,
Sometimes I have to create and use Navision Databases on samba shares - this
works with samba 2.0.x but does not with samba 2.2.x (tried 2.2.3a and 2.2.4).
The following tests were done with a acl enabeled samba and an acl aware
kernel/filesystem, but I also have done these tests with acl not compiled into
samba on an host without acl in the kernel - same result, does not work, same
2008 Oct 09
2
Exporting symnum() result from cor()
Hello,
I am trying to export the results from symnum() while maintain their
readability. I tried using sink to text file and also copying and pasting
but the results end up looking like this:
> symnum(c5.s)
bC bED bEN bLP bLS bPA bPD bPR p
bbContag 1
bbED + 1
bbENN_MN + B 1
bbLPI , , , 1
bbLSI + B B , 1
bbPAFRAC , * * , * 1
bbPD , B B
2006 Aug 03
1
Markdown and the hCal microformat
Hi, I've got a suggestion for adding something to Markdown's syntax.
I'm new to the list, so I don't know if this is likely to be received
well - I'm aware that it's not all that common (yet) to want to do
something like this, and I don't know where everyone here stands on
if or how to make markup more meaningful.
I'd like to generate some microformated
2010 Aug 17
2
[Form] Method POST & PUT problem
Hello,
I have a form that should be a POST method, but Rails insist to put a
hidden field "_method" that has the value "put" does anyone knows why?
Thanks,
David Sousa
Controller: -------------------------------
def new
@user = @current_user
end
-------------------------------------------
View: -------------------------------------
<% semantic_form_for @user,
2008 Sep 03
2
ANCOVA/glm missing/ignored interaction combinations
Hi
I am using R version 2.7.2. on a windows XP OS and have a question
concerning an analysis of covariance with count data I am trying to do,
I will give details of a scaled down version of the analysis (as I have
more covariates and need to take account of over-dispersion etc etc) but
as I am sure it is only a simple problem but I just can't see how to fix
it.
I have a data set with count
2016 Apr 13
2
formula argument evaluation
I suppose it would work, although "=>" is rather a descriptive symbol and
less a function.
But choosing between quoting:
"A + B => C"
and a regular function:
A + B %=>% C
probably quoting is the most straightforward, as the result of the foo()
function has to be a string anyways (which is parsed by other functions).
On Tue, Apr 12, 2016 at 6:20 PM, Richard M.
2013 Feb 22
4
HELP!!!
I am sorry to bug you, I am having this error whenever I want to run
random effects regression in software R: Error in if (sigma2$id < 0)
stop(paste("the estimated variance of the", :
missing value where TRUE/FALSE needed.
Please help me look into it.
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2008 Oct 09
1
Write multiple objects / data frames into a single .csv -- write.csv
Hello,
Is there a way to put multiple data.frames or objects into a single .csv ?
I know I can use sink() to do this for a text file. Is there way to do it
for a .csv?
e.g. for sink()
sink("c5.k.s.p.92.LN.sl.vs.mean.txt")
symnum(c5.k.92.LN.sl.vs.mean)
symnum(c5.s.92.LN.sl.vs.mean)
symnum(c5.p.92.LN.sl.vs.mean)
sink()
Could I put these all into a single .csv, in a similar format to
2011 Mar 30
1
Class noquote to matrix
Hi,
I apologize if the solution is right in front of me, but I can't find anything on how to convert a class of 'noquote' to 'matrix'. I've tried as.matrix and I've tried coercing it by 'class(x)<-matrix', but of course that didn't work. I've been using the function 'symnum' which returns an object of class 'noquote'.
Here is an
2015 Jun 16
4
Ayuda boxplot ggplot2
Hola a todos
Me gustaría saber si me pueden ayudar con lo siguiente.
Realicé un Boxplot usando ggplot2 para visualizar el comportamiento de dos
variables. Visualmente no se notan las diferencias porque la gráfica de la
derecha (parásitos en el abdomen) llega hasta 20 en el eje y. ¿Cómo puedo
hacer para que las dos gráficas muestren la misma escala en el eje Y, es
decir, que las dos lleguen a 60?