Dear Lists,
Here are my latest posts on retrenching and locating facilities better. Do
you have anything in academic papers that use data mining- analytics for
1) Better Employee ROI quantitative measurement or cutting costs rationally
based on data rather across the board.
2) Locating facilities
Hi Jim.
jim holtman schrieb:
> If you only want the first sequence,
Yes, that's true, I forgot to say that!
>> x <- c(-10, -5, 0, 5, 10, 15, 20)
>> y <- c(10, 10, 10, -5, -6, -7, 10)
>> data <- as.matrix( cbind(x, y) )
>> # if you only want the first 'run', then use 'rle' to find it
>> mask <-
Tom:
Supposse your Excel file is named "myExcelFile"
Open myExcelFile and SaveAs "myExcelFile.csv" or "myExcelFile.txt"
Then go to the RConsole and type:
#Option # 1
mydata <- read.csv("PathTomyExcelFile.csv",header=T)
mydata
# You should be able to see your dataset in R
# Option # 2
# If you s
On Sat, Oct 25, 2008 at 9:05 PM, Tom Backer Johnsen <[EMAIL PROTECTED]> wrote:
>> I am a new user of R. My problem is how to read excel data files.
>> How can I read a file called stock in R. What statement I should use?
>
It could help to start learning R with a GUI like Rcmdr. Among other
feature
Hi All,
*
I want to use the same starting values as used in LME() to compare
another estimation method for linear mixed effects models. Could you
please let me know how should I extract or output starting
values used by LME() or is there any separate program I can use for
this pu
Jacqueline Hall wrote:
Dear R helpers,
I have a 3D scatter plot that I have generated from scatterplot3d (which
looks great- thanks!) and I can see that the points in my graph fall in a
plane.
Following the example 5 from 3D scatter plot (below) I have fitted a
regression plane.
Now what I wou
I have been looking a bit at docbook as an alternative to latex.
However, Sweave is a very nice way to deal with documents mixing R
code, figures, and text as well as markup. I saw a couple of
references in the email archives that people have been experimenting
with combinations of tools (includin
Jasim Al-Ajmi wrote:
Dear Tom
I am a new user of R. My problem is how to read excel data files.
How can I read a file called stock in R. What statement I should use?
Thanks for your help.
Thye simplest is to save your file as a .CSV file. This is a "plain
text" file where the elements are sepa
Dear Burns
Replacing comma through tilde has not helped; I got the message:
Error in cor.test.formula(frm, alternative = "two.sided", method = "pearson") :
'formula' missing or invalid.
As you know, the syntax for test for corelation coefficient b/w variables x1 &
x2 is as:
cor=cor.test(x1,x2
Correction and shortening:
f <- function(i) {
i1 <- if (is.na(famdat[i, 2])) i else match(famdat[i, 2], famdat[1:i, 2])
i2 <- if (is.na(famdat[i, 3])) i else match(famdat[i, 3], famdat[1:i, 3])
min(i1, i2)
}
as.numeric(factor(sapply(1:nrow(famdat), f)))
On Sat, Oct 25, 2008 at 1:28 PM, Gab
If you only want the first sequence, then this might work:
> x <- c(-10, -5, 0, 5, 10, 15, 20)
> y <- c(10, 10, 10, -5, -6, -7, 10)
> data <- as.matrix( cbind(x, y) )
> # if you only want the first 'run', then use 'rle' to find it
> mask <- data[,1] > 0 & data[,2] > min(data[,2])
> run <- rle(mask
Here is one other solution. For each row it finds the
earliest row that has the same momid or popid:
f <- function(i) {
if (is.na(famdat[i, 1]) || is.na(famdat[i, 2])) {
i
} else {
i1 <- match(famdat[i, 1], famdat[1:i, 1])
i2 <- match(famdat[i, 2], famdat[1:i, 2]
Hi,
I feel that your example isn't exactly minimal so I may be completely
overlooking your question. Would the following do?
library(lattice)
mdf <- data.frame(x <- seq(0, pi, l=100), y=sin(x))
xyplot(y~x, data=mdf, type="b",
par.settings=list(plot.symbol=list(pch=21, col="r
On 25/10/2008 1:01 PM, Murray Eisenberg wrote:
Is rproxy.dll supposed to be installed as part of a Windows binary
installation of R? And the installer put it in R's bin subdirectory?
If so, it seems to be missing from the R-2.8.0 patched, 2008-10-25
(r46779), that I installed.
See the CHA
#is this what you want?
x <- c(-10, -5, 0, 5, 10, 15, 20)
y <- c(10, 10, 10, -5, -6, -7, 10)
data <- data.frame(x, y)
subset(data, x>0 & y==min(y))
On Sat, Oct 25, 2008 at 12:33 PM, Martin Ballaschk <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm not very experienced with R and struggle with data selecti
Is rproxy.dll supposed to be installed as part of a Windows binary
installation of R? And the installer put it in R's bin subdirectory?
If so, it seems to be missing from the R-2.8.0 patched, 2008-10-25
(r46779), that I installed.
--
Murray Eisenberg [EMAIL PROTECTED]
Mat
On Oct 24, 2008, at 11:22 PM, leo_wa wrote:
if i want to plot the chi-square distribution with a different
degree of
freedom how can i plot it in the graph?Sometimes i plot the
histogram and
cut it in a lot of piece.It's distribution like a chi-square.So i
want to
plot the chi-square wi
Create a distance metric which is 0 if there are common mothers or
fathers and 1 otherwise using that to cluster your points:
dd <- with(famdat, outer(momid, momid, "!=") * outer(dadid, dadid, "!="))
dd[is.na(dd)] <- 1
hc <- hclust(as.dist(dd))
cutree(hc, h = 0.1)
On Sat, Oct 25, 2008 at 11:08 AM
Hi,
I'm not very experienced with R and struggle with data selection from a long
matrix with two columns.
I want to cut out the data between x > 0 and min(y).
> x <- c(-10, -5, 0, 5, 10, 15, 20)
> y <- c(10, 10, 10, -5, -6, -7, 10)
> data <- as.matrix( cbind(x, y) )
> data
x y
[1,] -10
For the following data:
famdat <- read.table(textConnection("ind momid dadid
1 1819
2 1819
3 1819
4 2122
5 2122
6 2325
7 2327
8 2930
9 3130
10 4041
11 NANA
12 5051"),header=TRUE)
closeAllConnections();
I would like to create a l
Hello,
I am using xyplot and am happy with my graph, *except* that I cannot get
the symbols to be filled. I tried using
bg=c("red3","red","black","lightgrey")) in both the key and the xyplot
function, that that was obviously not the answer. I would like the
sybols to be filled with the same
Try this:
evaluate.all <- function(response, DF = iris) {
DF <- cbind(response = DF[[response]], DF)
L <- list(
# some linear models:
B1 = try(lm(response ~ Sepal.Length, DF)),
L2 = try(lm(response ~ Sepal.Width, DF)),
# s
Frank E Harrell Jr wrote:
Tom Backer Johnsen wrote:
Greg Snow wrote:
You may want to try the odfWeave package. It uses openoffice which
can read and write MSWord documents. This is an alternative to the
HTML > Excel > Word route.
Now that is an interesting alternative. Not for this term t
Dear R users,
I have written a function that runs several statistical models and extracts
the AIC values from them.
As a (nonsense) example, I use the iris dataset:
#
data(iris)
attach(iris)
evaluate.all=function(response,...){
response=get(response) #retrieves the response variab
Tom Backer Johnsen wrote:
Greg Snow wrote:
You may want to try the odfWeave package. It uses openoffice which
can read and write MSWord documents. This is an alternative to the
HTML > Excel > Word route.
Now that is an interesting alternative. Not for this term though, to
get the students
Hi,
I have a question which is a little off-topic but then again, it should stay in
the boundaries of what can be done with available R functions.
Has anyone pointers to tutorials or the like where one can get inspiration on
how to visualize some "spatial" statistics?
I want to analyze differen
Rodrigo Aluizio wrote:
Hi everybody,
well I'm trying to use barplot for the first time. I get a suitable graphic but
I'm having a weird problem.
My graphic is generated from a matrix with several species (rowNames) and two
abundance columns.
So each species will have two bars, and the species n
On 24/10/2008 9:50 PM, Steven McKinney wrote:
I suspect there's a deeper issue here.
sum(exp(yi)) when large yi occur is
problematic. exp(yi) for yi>710 is
just a huge number, and summing additional
values only makes the overall sum larger as all
components of the summation are positive.
There's
Currently there are some problems with the building of Hmisc binary
package; see CRAN for more information.
My suggestion is you can remove (or comment out) the code lines not to
use Hmisc for Tinn-R until it's available again on CRAN. As for me, I
merely use two expressions in Rprofile.site and I
Greg Snow wrote:
You may want to try the odfWeave package. It uses openoffice which can read and
write MSWord documents. This is an alternative to the HTML > Excel > Word
route.
Now that is an interesting alternative. Not for this term though, to
get the students to learn R and at the sam
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