Dear All,
Who can I use Self Organizing Map (SOM) results to cluster samples? I have
tried following but this gives me only the clustering of grids, while I
want to cluster (150) samples:
library(kohonen)
iris.sc <- scale(iris[, 1:4])
iris.som <- som(iris.sc, grid=somgrid(xdim = 3, ydim=3, topo="
Hi eveyone,
I'm studying about variance (ANOVA) in R and have some questions to share.
I read an article investigating the effect of factors (temperature, Asphalt
content, Air voids, and sample thickness) on the hardness of asphalt
concrete in the tensile test (abbreviated as Kic). Each condition w
On 2018/10/9 23:22, Duncan Murdoch wrote:
On 09/10/2018 10:53 AM, Jinsong Zhao wrote:
Hi there,
Here is the panel.cor function from ?pairs:
panel.cor <- function(x, y, digits = 2, prefix = "", cex.cor, ...)
{
usr <- par("usr"); on.exit(par(usr))
par(usr = c(0, 1
> On Oct 9, 2018, at 3:04 PM, matthew campbell wrote:
>
> Good afternoon,
>
> I am trying to run a 10-fold CV, using a matrix as my data set.
> Essentially, I want "y" to be the first column of the matrix, and my "x" to
> be all remaining columns (2-257). I've posted some of the code I used
>
Good afternoon,
I am trying to run a 10-fold CV, using a matrix as my data set.
Essentially, I want "y" to be the first column of the matrix, and my "x" to
be all remaining columns (2-257). I've posted some of the code I used
below, and the data set (called "zip.train") is in the "ElemStatLearn"
p
If you don't want to disturb the existing install of R then you might want to
take some effort to bring your library with you and avoid letting your copy of
R mess with the default user library. Packrat may help with this?
On October 9, 2018 2:13:40 PM PDT, Jim Lemon wrote:
>Hi Marc,
>I do this
Hi Marc,
I do this quite often with Tcl-Tk. All you have to do is make sure
that the PATH contains the correct location for the R executable if
you don't specify it within your program.
Jim
On Wed, Oct 10, 2018 at 1:58 AM Marc Capavanni via R-help
wrote:
>
> Hi there,
>
> I'm currently using R on
Thank you Jeff. It is an excellent idea and i might try it out if
nothing works out. And i don't have 12 files on each sub directory;
EK
On Tue, Oct 9, 2018 at 11:30 AM Jeff Newmiller wrote:
>
> Instead of changing the order in which you read the files, perhaps your
> analysis will work if you
Use basename(filename) to remove the lead parts of the full path to the
file. E.g., replace
FNs <- sort(match(sub("\\.PDF", "", file.names), month.name))
with (the untested)
FNs <- sort(match(sub("\\.PDF", "", basename(file.names)), month.name))
Bill Dunlap
TIBCO Software
wdunlap tibco.com
Hello,
I would do something along the lines of
# work in the directory where the files are located
old_dir <- setwd(path)
file.names <- list.files(pattern = "\\.PDF")
[...]
# When you are done reset your wd
setwd(old_dir)
Hope this helps,
Rui Barradas
Às 21:38 de 09/10/2018, Ek Esawi escre
Hi again,
I worked with RUi's idea of using the match function with month.name.
I got numerical values for months then i sorted and pasted the PDF
file extension. It gave me the file order i wanted, but now statements
8,9,&10 don't work and i kept getting an error which is listed below.
The dilemm
Please post both the code you are using and the error, Abigail.
Nate
On Oct 9, 2018, 11:59 AM -0700, Friedman, Abigail ,
wrote:
> I keep getting error messages when running my data frame code and I cannot
> figure out what I am doing wrong.
>
>
> [[alternative HTML version deleted]]
>
>
Hello,
Well, you must post the said code (and data), how can we help you
without seeing it?
In order to post data, post the output of dput(df) in your mail. Or, if
it is too big with the output of dput(head(df, 20)). (df is the name of
your dataset.)
Also, don't post in html, please, see t
I keep getting error messages when running my data frame code and I cannot
figure out what I am doing wrong.
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman
I thought it might be a floating issue but didn't see the connection.
Thanks everyone.
On Tue, Oct 9, 2018, 2:00 PM Benoit Vaillant
wrote:
> Hello,
>
> On Tue, Oct 09, 2018 at 01:14:54PM -0400, Ryan Derickson wrote:
> > Apologies if this is a simple misunderstanding.
>
> See for example:
>
> htt
Hello,
On Tue, Oct 09, 2018 at 01:14:54PM -0400, Ryan Derickson wrote:
> Apologies if this is a simple misunderstanding.
See for example:
https://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f
> round((.575*100),0) gives 57
> round(57.5,0) gives 58
>
Floating point numbers are approximations in base 2, so any fractions not
representing such numbers may round off in unexpected directions.
sprintf( "%22.20f", 0.5 )
sprintf( "%22.20f", 0.575 )
See R FAQ 7.31.
On October 9, 2018 10:14:54 AM PDT, Ryan Derickson
wrote:
>Hello,
>
>Apologies if t
FAQ 7.31
Open this file in your favorite text editor on your computer
system.file("../../doc/FAQ")
57.5 comes out even in binary, and .575 does not.
> print(.575*100, digits=17)
[1] 57.493
## The fraction is less than .5, hence it gets rounded down to 57
> print(57.5, digits=17)
[1] 5
Hello,
Apologies if this is a simple misunderstanding.
round((.575*100),0) gives 57
round(57.5,0) gives 58
Why?
Ryan Derickson
University of Cincinnati
On Tue, Oct 9, 2018, 10:08 AM PIKAL Petr wrote:
> Hi
>
> You could use brute force approach. Just print out "file.names" and
> estimate orde
Is it possible to release the file destination after sending it to a pdf
file?
Below, line 3 send the graph to a pdf file.
I like to release the devise so that I can see result produced by line
for on the console (screen). Thanks.
x<-1:10
pdf("test1.pdf") # pdf {grDevices}
boxplot(x) # This goes
Look at dev.off() or possibly dev.set().
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Tue, Oct 9, 2018 at 9:17 AM, Steven Yen wrote:
> Is it possible to release the file destination after sending it to a pdf
> file?
> Below, line 3 send the graph to a pdf file.
> I like to release the devise
Instead of changing the order in which you read the files, perhaps your
analysis will work if you sort the data after you read it in. This may require
that you add the month names as a column in the data frames, or you may already
have dates in the data that you could sort by.
One idea:
fnames
Instead of changing the order in which you read the files, perhaps your
analysis will work if you sort the data after you read it in. This may require
that you add the month names as a column in the data frames, or you may already
have dates in the data that you could sort by.
One idea:
fnames
On 09/10/2018 10:53 AM, Jinsong Zhao wrote:
Hi there,
Here is the panel.cor function from ?pairs:
panel.cor <- function(x, y, digits = 2, prefix = "", cex.cor, ...)
{
usr <- par("usr"); on.exit(par(usr))
par(usr = c(0, 1, 0, 1))
r <- abs(cor(x, y))
Hi there,
I'm currently using R on Windows as part of a piece of software and when
I'm providing it to users I have an application that runs the R
installation file with an INF file containing the following settings as to
not disrupt existing installs of R on their system.
[Setup]
Lang=en
Dir=.\R
Hi there,
Here is the panel.cor function from ?pairs:
panel.cor <- function(x, y, digits = 2, prefix = "", cex.cor, ...)
{
usr <- par("usr"); on.exit(par(usr))
par(usr = c(0, 1, 0, 1))
r <- abs(cor(x, y))
txt <- format(c(r, 0.123456789), digits = digi
Hello,
You can use the built in variable month.name to get the calendar order
and match it with your file names.
i <- match(sub("\\.PDF", "", file.names), month.name)
file.names[i]
#[1] "January.PDF" "February.PDF" "March.PDF"
Hope this helps,
Rui Barradas
Às 14:44 de 09/10/2018, Ek Esa
Hi
You could use brute force approach. Just print out "file.names" and estimate
ordering vector.
In czech locale it is
oo <- c(6, 11, 1, 4, 5, 2, 3, 10, 12, 9, 7, 8)
In english locale it is different :-)
After that
file.names[oo]
should give you correct order of file names
Cheers
Petr
> ---
Hi All--
I used base R list.file function to read files from a directory. The
file names are months (April, August, etc). That's the system reads
them in alphabetical order., but i want to reordered them in calendar
order (January, February, ...December).. I thought i might be able to
do it via Re
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