Displaying 20 results from an estimated 20000 matches similar to: "hide ends of line in a density plot"
2005 Dec 13
8
superimpose density line over hist
Hi all,
I'm trying to superimpose a rchisq density line over a histogram with
something like:
hist(alnlength)
lines(density(rchisq(length(alnlength), 4)),col="red")
But the rchisq line won't appear anywhere,
Anyone knows what I am missing here?
Thanks in advance,
Albert.
2010 Apr 24
2
left-to-right series of box and whisker plots from a csv file
Hi,
I've got a csv file with scores like this:
40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,32,38,40,20,40,26,40,30,40,5,5,13,12,40,40,3,33,29,23,2,24,9,15,4,21,16,5,26,8,8,18
40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,32,40,40,30,40,40,37,34,40,36,13,40,13,40,5,40,8,29,5,15,34,5,22,14,20
2006 Jun 21
3
sort matrix by sum of columns
Hi all,
I would like to know how can I sort the cols of a matrix by the sum of
their elements.
a <- matrix(as.integer(rnorm(25,4,2)),10,5)
colnames(a) = c("alfa","bravo","charlie","delta","echo")
I guess I should use colSums, and then rearrange the matrix somehow
according to the result.
My idea is to display a "sorted" barplot:
2006 Jun 09
2
barplot dataframes w/ varying dimensions
Hi all,
I would like to do a barplot of a dataframe like this one:
alfa beta gamma delta
qwert 56.5 58.5 56.5 58.5
asdfg 73.0 73.0 43.0 73.0
zxcvb 63.0 63.0 43.0 63.0
yuiop 63.0 63.0 43.0 63.0
with the labels of the rows and columns.
I would like to have something that works for dataframes with varying
dimensions, and so far I haven't found any way to do it.
2010 Jan 15
2
processing all files with certain extension in a directory
Hi all,
I'm trying to process all files with a certain extension "*.ext" in a
directory like this:
> R --slave --args /my/dir < dir_plot.r
where I then I want to do something like:
myarg <- commandArgs()
inputdir <- myarg[length(myarg)]
print(inputdir)
"for file with extension "*.ext in inputdir"
do
data = process.data(file)
outfile =
2006 Apr 28
2
entries that match a regexp
Hi all,
I am trying to filter the element of a df that start with "TF", like
this:
alfa =
c(123221,"TF13124",41243,"TF1234",32414,"TF13124","TF14333",2134123,"TF1234")
beta =
2013 Jul 07
1
[LLVMdev] trying to compile llvm+clang on CentOS 5
I am trying to have llvm and clang on a centOS 5 without root permissions.
I tried to do it downloading llvm and clang src packages and trying the
ususal configure, make and make install steps as such:
wget http://llvm.org/releases/3.3/llvm-3.3.src.tar.gz
wget http://llvm.org/releases/3.3/cfe-3.3.src.tar.gz
tar xzf llvm-3.3.src.tar.gz && cd llvm-3.3.src/tools/ && tar xzf
2008 Feb 28
1
calculate sd for each row on some columns of a dataframe
Hi,
I've got a dataframe like this:
df = data.frame(a=rnorm(100,1),b=rnorm(100,10),c=rnorm(100,100),d=rnorm(100,-100))
and I want to calculate sd1 for (a,b,c) for each entry, and sd2 for
(b,c,d) for each entry.
I don't seem to find the answer using aggregate or apply,
How can I do this?
Thanks in advance,
Cheers,
Albert.
2009 Apr 17
1
matching subvectors in vector sets
Hi,
I've got a list of ~20000 elements that look like this:
[1]
"A00096:A00096:A00096:A00096:A02178:A02178:A07776"
[2]
"A00046:A00076:A01101:A04146:A05671:A07169"
[3]
"A00038:A00932:A02185:A02370:A02818:A02818:A02818:A02818:A04732:A07142:A07142"
[4]
"A00096:A01352:A01352:A02023:A05001:A05001:A07776"
[5]
2007 Apr 02
3
Random number from density()
Hello,
I'm writing some genetic simulations in R where I would like to place
genes along a chromosome proportional to the density of markers in a
given region. For example, a chromosome can be presented as a list of
marker locations:
Chr1<-c(0, 6.5, 17.5, 26.2, 30.5, 36.4, 44.8, 45.7, 47.8, 48.7, 49.2,
50.9, 52.9, 54.5, 56.5, 58.9, 61.2, 64.1)
Where the numbers refer to the locations of
2008 May 29
2
how to use substring match as condition?
Hi,
How can I use a substring match as a condition in a subset command?
Sth like this:
subset(input, field1=="blah1" & field2=="blah2") # but now with substring
match in field2
subset(input, field1=="blah1" & field3 *substringmatch* "blah3")
I've tried with gsub, but it won't work:
subset(input, field1=="blah1" &
2006 Sep 22
4
Creating Movies with R
Dear All,
I'd like to know if it is possible to create animations with R.
To be specific, I attach a code I am using for my research to plot
some analytical results in 3D using the lattice package. It is not
necessary to go through the code.
Simply, it plots some 3D density profiles at two different times
selected by the user.
I wonder if it is possible to use the data generated for different
2011 Jul 14
2
Add a density line to a cumulative histogram - second try
Hi list,
this is my second try for first post on this list (I tried to post via email
and nothing appeared in my email-inbox, so now I try to use the
nabble-web-interface) - I hope that you will only have to read one post in
your inbox! Okay, my question ...
I was able to plot a histogram and add the density()-line to this plot.
I was able to plot a cumulative form of this histogram.
Yet, I was
2009 Aug 19
2
how to fill the area under the density line with semitransparent colors
Dear R-listers,
I have created a plot to display the density lines for the same
variable by different entities. Now, I want to fill the area under the
density lines with semitransparent colors.
Though I have checked that in web-searching and book-reading, I still
do not perform that.
Could anyone please give me any helps or advice? Thank you in advance.
The data and code I used listed below:
#
2005 Dec 22
1
add factor to dataframe given ranges
Hi all,
I would like to factorize the entries in a dataframe given some
groupings. E.g:
mydf = data.frame(
a = rnorm(100,10),
b = rnorm(100,10),
c = rgamma(100, 1, scale=1))
group = hist(mydf$c, breaks="FD")
group$breaks
The idea is to create a factor "mydf$d" with levels corresponding to
the ranges in group$breaks.
There must be an easy way to do this that I
2010 Jun 15
1
SERIALIZE command
Hi all,
Has anything changed since this email that will make OpenCL support in
nouveau easier?
I would like to compile some information about the different steps
needed to have OpenCL support for Nouveau (and the ATI open-source
drivers for that matters) so that people interested in this issue can
have a starting document to read.
Cheers,
Albert.
> Kernel allows you to create the relevant
2006 Jun 13
1
bubbleplot for matrix
Hi all,
I would like to ask if it is possible to use bubbleplot for a 20x20
matrix, instead of a dataframe with factors in columns.
The idea would be to get a tabular representation with bubbles like in
Rnews_2006_2 article, which look very nice.
Thanks in advance,
Albert.
2006 Oct 17
1
ape -- internal nodes and pie charts
Hi,
I've been investigating the ape package for a while, and I was
wondering if it is possible to:
- display the names of the internal nodes (from a newick tree)
- plot a pie-chart on top of each of the internal branches in a phylogram plot
Thanks in advance,
Cheers,
Albert.
2008 Jun 16
4
Superimposing Line over Histogram in Density Plot
Hi,
Currently I have a density plot generated with this
snippet.
Is there a way I can add a line curve on top of it?
I mean in one figure
__BEGIN__
myhist <- hist(x
col="blue",
main = "Density Plot",
xlab = "Exp Level",
)
__END__
- Gundala Viswanath
Jakarta - Indonesia
2005 Mar 07
1
Density estimation when an end may not go to zero?
All the density estimators I've found in R seem to force the ends
to go to zero. What can we do if we don't believe that, e.g., with
something that might be a uniform distribution or a truncated normal
with only observations above mu+sigma observed?
The closest I could come to this was to artificially extend the
numbers beyond the range, thereby forcing the density estimator