Displaying 20 results from an estimated 25 matches for "colnums".
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colnum
2007 Mar 04
1
Scoping issue?
Hello, The code below is supposed to be a wrapper for matplot to
do columnwise visible comparison of several matrices, but I'm
doing something wrong because I can't access an argument called
'colnum'. I'd be most grateful for some insight.
Thanks,
John Thaden
Little Rock, AR
################################
# mmatplot is a matplot wrapper to compare the same column of
#
2006 Aug 08
3
Pairwise n for large correlation tables?
Hello,
I'm using a very large data set (n > 100,000 for 7 columns), for which I'm
pretty happy dealing with pairwise-deleted correlations to populate my
correlation table. E.g.,
a <- cor(cbind(col1, col2, col3),use="pairwise.complete.obs")
...however, I am interested in the number of cases used to compute each
cell of the correlation table. I am unable to find such a
2006 Jul 04
1
[Fwd: formatting using the write statement]
>I have a series of write statements because
>i am writing to a file
>where the characters strings are the column names of a dataframe
>and the numbers are the elements in a particular row.
>So, a file might look like
>
>AAA 2.1
>BB 3.1
>AHLZ 0.2
>
>and it would be named "rowname".mls.
>
>so, each time i get to a new row, i create a new file and
2007 Jun 06
2
lookup in CSV recipe
I await Luke''s node settings implementation with interest. At the
moment however, I have this sort of ugliness:
$site = $hostname ? {
fred => "opsera",
barney => "bedrock",
default => "unknown site",
...
}
So I''ve knocked up this little function to use CSV files instead. Now
I can just do:
$site =
2011 May 18
4
Loop stopping after 1 iteration
Hi all,
This is a very basic question, but I just can't figure out why R is handling
a loop I'm writing the way it is.
Here is the script I have written:
grid_2_series<-function(gage_handle,data_type,filename)
series_name<-paste(gage_handle,data_type,sep="_")
data_grid<-read.table(file=paste(filename,".txt",sep=""))
2009 Jan 22
2
"latex" in Hmisc: cell formating
Hi list,
Could you explain the error I see here? Thanks!
## I'm using R 2.8.0 on WinXP, Hmisc_3.4-3
> table1 <- matrix(10, 180,7)
> cell.format <- matrix("", ncol=7, nrow=180)
> cell.format[c(seq(3,180,6),seq(4,180,6)),] <- "color{red}"
> cell.format[c(seq(5,180,6),seq(6,180,6)),] <- "color{green}"
>
> latex(table1,
2011 Apr 04
1
moving mean and moving variance functions
Hello
Lets say as an example I have a dataframe with the following attributes:
rownum(1:405), colnum(1:287), year(2000:2009), daily(rownum x colnum x year)
and foragePotential (0:1, by 0.01). The data is actually stored in a netcdf
file and I'm trying to provide a conceptual version of the data.
Ok. I need to calculate a moving mean and a moving variance for each cell on
the following
2006 Aug 02
5
Finding the position of a variable in a data.frame
Simple problem but I don't see the answer. I'm trying
to clean up some data
I have 120 columns in a data.frame. I have one value
in a column named "blaw" that I want to change. How do
I find the coordinates. I can find the row by doing a
subset on the data.frame but how do I find out here
"blaw " is in columns without manually counting them
or converting names(Df) to a
2011 Jun 23
2
Confidence interval from resampling
Dear R gurus,
I have the following code, but I still not know how to estimate and extract
confidence intervals (95%CI) from resampling.
Thanks!
~Adriana
#data
penta<-c(770,729,640,486,450,410,400,340,306,283,278,260,253,242,240,229,201,198,190,186,180,170,168,151,150,148,147,125,117,110,107,104,85,83,80,74,70,66,54,46,45,43,40,38,10)
x<-log(penta+1)
plot(ecdf(x),
2002 Apr 18
5
Two problems
Hello! Two questions:
1: I have to import a matrix of adjacency from a file of a software that is
not R (for example "bloc notes" of Windows). The problem is that the matrix
is not in the explicit form as
0 1 1
1 0 0
1 0 0
but it is a scattered matrix where in each row there are two nodes that have
a direct path.
The matrix is
a b
a c
b a
c a
For example, the first row
2009 Feb 03
1
pairs() help - colour histograms on diagonal
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
I'd like to be able to colour histograms along the diagonal using the colours
stored in colnames(d):
> d
black blue brown cyan
1 0.96405751 -0.02964390 -0.060147424 -0.06460070
2 -0.03614607 0.95475444 -0.152382053 -0.07767974
3 -0.07095613 -0.05884884 -0.061289399 -0.06445973
4 -0.03708223 -0.05997624
2012 Oct 09
4
Convert COLON separated format
I have a bunch of data sets that were created for the libsvm tool. They are in "colon separated sparse format".
i.e.
1 5:1 27:3 345:10
Is a row with the label of "1" and only has values in columns 5, 27, and 345.
I want to read these into a data.frame in R.
Is there a simple way to do this?
--
Noah Silverman, M.S.
UCLA Department of Statistics
8117 Math Sciences
2017 Dec 04
0
Dynamic reference, right-hand side of function
The generic rule is that R is not a macro language, so looping of names of things gets awkward. It is usually easier to use compound objects like lists and iterate over them. E.g.
datanames <- paste0("aa_", 2000:2007)
datalist <- lapply(datanames, get)
names(datalist) <- datanames
col1 <- lapply(datalist, "[[", 1)
colnum <- lapply(col1, as.numeric)
(The 2nd
2017 Dec 04
3
Dynamic reference, right-hand side of function
Hi!
Thanks for the replies!
I understand people more accustomed to R doesn't like looping much, and that thinking about loops is something I do since I worked with Stata a lot. The syntax from Peter Dalgaard was really clever, and I learned a lot from it, even though it didn't solve my problem (I guess it wasn't very well explained). My problem was basically that I have a data matrix
2017 Dec 04
0
Dynamic reference, right-hand side of function
Um, if you insist on doing it that way, at least use
assign(varname, as.vector(get(varname)))
-pd
> On 4 Dec 2017, at 22:46 , Love Bohman <love.bohman at sociology.su.se> wrote:
>
> Hi!
> Thanks for the replies!
> I understand people more accustomed to R doesn't like looping much, and that thinking about loops is something I do since I worked with Stata a lot. The
2007 Nov 08
6
Extract correlations from a matrix
Dear R users,
suppose I have a matrix of observations for which I calculate all
pair-wise correlations:
m=matrix(sample(1:100,replace=T),10,10)
w=cor(m,use="pairwise.complete.obs")
How do I extract only those correlations that are >0.6?
w[w>0.6] #obviously doesn?t work,
and I can?t find a way around it.
I would very much appreciate any help!
Best wishes
Christoph
(using R
2010 Oct 13
1
[LLVMdev] EXC_BAD_ACCESS: invalid MemoryBuffer from ContentCache::getBuffer
I'm using the latest llvm/clang 2.8 releases and am getting
EXC_BAD_ACCESS crashes in ContentCache::getBuffer. This happens when
I'm printing out errors from a compilation run and iterating over
TextDiagnosticBuffer returned errors.
When checking the errors, I construct a FullSourceLoc and do:
int LineNum = SourceLoc.getInstantiationLineNumber();
int ColNum =
2008 Jul 29
1
correlation between matrices - both with some NAs
Hi everyone,
I'm having trouble applying the Cor() function to two matrices, both of
which contain NAs. I am doing the following:
a<-cor(m1, m2, use="complete.obs")
... and I get the following error message:
Error in cor(m1, m2, use = "complete.obs") :
no complete element pairs
Does anyone know how I can apply a correlation, ignoring any NAs?
Thanks,
rcoder
--
2017 Dec 04
3
Dynamic reference, right-hand side of function
Hi R-users!
Being new to R, and a fairly advanced Stata-user, I guess part of my problem is that my mindset (and probably my language as well) is wrong. Anyway, I have what I guess is a rather simple problem, that I now without success spent days trying to solve.
I have a bunch of datasets imported from Stata that is labelled aa_2000 aa_2001 aa_2002, etc. Each dataset is imported as a matrix, and
2008 Feb 26
2
Combining series of variables using identifier
R users,
I have df like this
a <- data.frame( indx = 1:20,
var1 = rep(c("I20", "I40", "A50", "B60"), each=5),
var1_lab= rep(c("cat", "dog", "mouse", "horse"), each=5),
var2 = rep(c("B20", "X40", "D50",