[R] zero-fill absent data

2010-01-05 Thread Dan Kortschak
Hello, I have a set of data frames, generated by an SQL query that I am working with. Because of the way the query was written, zero values for the dependent variable (V2 in the example) are not recorded. Up until now this has not been a problem. I would like to be able to fill all absent data wi

[R] problem: howto see ylim (or equivalent) within a custom panel function

2009-11-23 Thread Dan Kortschak
Hello, I am plotting a set of data where subsets are of different length and not all sites are noted in the data sets. To indicate the extent of sites, I am marking this with a line on the xyplot being produced: require(lattice) lengths<-as.integer(runif(10)*100) results <- matrix(ncol=3) for (i

[R] how to prevent lattic barchart from drawing bar completely to the bottom/left of the chart

2009-11-22 Thread Dan Kortschak
Hello, I am trying to use lattice barchart so that it will draw a barplot where the bars do no reach the frame of the chart, but only extend to 0 as the minimum. With barplot, I can set this by using the offset value, but I cannot see how to do this with barchart. Using the example in the barchar

[R] barchart problem was: Re: how to specify the order of panels with xyplot

2009-11-20 Thread Dan Kortschak
Thank you, that works perfectly and is more elegant - I'm sorry not to have included complete code/data. I have another question that I have been having problems with recently, described by this code: reads<-as.data.frame(cbind(c(1:25),rnorm(25),rnorm(25),rnorm(25),rnorm(25))) names(reads)<-c('id

Re: [R] how to specify the order of panels with xyplot

2009-11-19 Thread Dan Kortschak
It's probably not the nicest way to do it, but it works. hits<-cbind(hits,chromosomes$name[hits$Chromosome]) names(hits)[5]<-'name' hits$name<-factor(hits$name,ordered(chromosomes$name[1:dim(chromosomes)[1]])) xyplot(weighted~bin|name,data=hits) On Fri, 2009-11-20 at 12:

Re: [R] how to plot mean+/-SD from externally calculated values

2009-11-19 Thread Dan Kortschak
mistake. On Thu, 2009-11-19 at 22:23 -0500, David Winsemius wrote: > On Nov 19, 2009, at 7:38 PM, Dan Kortschak wrote: > > > Thank you for that, you have helped amazingly.Are you also able to > > point > > me to a barplot equivalent? > > It is a great puzzle to me t

[R] how to specify the order of panels with xyplot

2009-11-19 Thread Dan Kortschak
> chromosomes id refseq namelength 1 0 NC_01.9 Homo sapiens chromosome 1 247249719 2 1 NC_02.10 Homo sapiens chromosome 2 242951149 3 2 NC_03.10 Homo sapiens chromosome 3 199501827 4 3 NC_04.10 Homo sapiens chromosome 4 191273063 5 4

Re: [R] how to plot mean+/-SD from externally calculated values

2009-11-19 Thread Dan Kortschak
Thank you for that, you have helped amazingly.Are you also able to point me to a barplot equivalent? Dan On Thu, 2009-11-19 at 18:53 -0500, David Winsemius wrote: > > install.packages("plotrix") > > library(plotrix) > > ?plotCI > __ R-help@r-project

[R] how to plot mean+/-SD from externally calculated values

2009-11-19 Thread Dan Kortschak
Hi, I am trying to plot a set of means+/-SD calculated by an external program (an RDBMS) since the data set is too large to happily fit in R (740M x 100 values - which are summarised to 100 means/SD by the DB). I want to have a mean with whiskers at +/-1SD. Can anyone suggest a way to do this? t

[R] drawing a line indicating extent of each factored data series in multipanel lattice xyplot

2009-10-21 Thread Dan Kortschak
Hi, Am am plotting aggregated frequency data (extracted from an RDBMS) relating to DNA sequence features for each of the human chromosomes as described in the table chromosomes below (the frequency data is in a table 'hits' that has a value (or not) for each of a set of bins across each chromosome

Re: [R] changing number of axis

2009-10-04 Thread Dan Kortschak
Hi Deepayan, I'm building the pipeline to generate the data, so that can easiy be inserted into the code upstream. Thanks for your help. Dan On Sun, 2009-10-04 at 12:16 -0700, Deepayan Sarkar wrote: > On Thu, Oct 1, 2009 at 11:30 PM, Dan Kortschak > wrote: > > Thanks for

Re: [R] changing number of axis

2009-10-01 Thread Dan Kortschak
e, 2009-09-29 at 23:17 -0700, Deepayan Sarkar wrote: > On Tue, Sep 29, 2009 at 11:09 PM, Dan Kortschak > wrote: > > Hi Deepayan, > > > > Thanks for that, I had a think (a few hour too late) and came to the > > same conclusion. I had wanted to have vertical bars for ea

Re: [R] changing number of axis

2009-09-29 Thread Dan Kortschak
, 2009-09-29 at 22:59 -0700, Deepayan Sarkar wrote: > On Wed, Sep 16, 2009 at 2:02 PM, Dan Kortschak > wrote: > > Hi, I trying to produce a bar chart describing hits to specific bins by > > chromosome for a large data set (I am asking here because > > experimentatio

[R] changing number of axis

2009-09-16 Thread Dan Kortschak
density of the labels). My question is how I can get a sane number of labels along the x axis (about 5-10 would be good). I suspect that 'scales' might be the way to go, but I can't see an obvious option to do this. thanks -- Dan Kortschak _

[R] calculating average for multiple subclasses in a data set

2009-03-27 Thread Dan Kortschak
Hello R users, I have a data set which is a set of lengths and types of objects. I want to calculate the mean length for each type of object as opposed to the mean of all the objects in the set. This is in order to make a comparison between the lengths of each type of objects and the number of th

Re: [R] multiple paired t-tests

2009-03-25 Thread Dan Kortschak
I'm not really looking for a needle in a haystack, there are a small number of the 60 tests (about 20) that are likely to concord with other experiments I have, and in a particular pattern. Since I already have the data in tables for graphic depiction, I was hoping to have a reasonably easy way to

Re: [R] multiple paired t-tests

2009-03-25 Thread Dan Kortschak
Perfect. In conjunction with Jorge's contrib that works a treat. Thanks. Dan On Tue, 2009-03-24 at 19:00 -0400, David Winsemius wrote: > ?try > ?tryCatch __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read t

Re: [R] multiple paired t-tests

2009-03-24 Thread Dan Kortschak
That is a valid point, the number of samples I expect to be different is actually quite small, but it is supportable (or otherwise) by other experimental data. Unfortunately the question I really want answered is pretty much covered by doing this. thanks Dan On 25/03/2009, at 10:25 AM,

Re: [R] multiple paired t-tests

2009-03-24 Thread Dan Kortschak
Hi Jorge, That is exactly what I wanted - I should have given a reasonable number of observations (my set has *almost* all paired observations, so it will still break with that approach unless I manicure the data set). Is there a way to fail nicely on a single one of the tests without the

[R] multiple paired t-tests

2009-03-24 Thread Dan Kortschak
Hi R users, I have a very large data set that has two conditioning variables for the test I want to perform. A toy set can be simulated: type<-sample(1:3,100,replace=TRUE) class<-sample(1:20,100,replace=TRUE) value<-rnorm(100) data<-cbind(type,class,value) (though type and class are alphanum)

Re: [R] lattice multipanel strip placement - with two factors

2009-03-23 Thread Dan Kortschak
That's part way to my desired solution, but not completely there. Here's an example: chromosome<-rep(c("A","X","Y"),time=20) type<-rep(c(1:20),times=3) length<-rnorm(60) densityplot(~length | type * chromosome, layout=c(5,12)) What I would like to see is the chromosome strip (A, X, Y) once on th

Re: [R] changing order of lattice plots

2009-03-23 Thread Dan Kortschak
Perfect! Thanks. Dan On Mon, 2009-03-23 at 08:35 +0100, Dimitris Rizopoulos wrote: > try setting the 'as.table' argument to TRUE, e.g., > > densityplot(~End-Begin | Type * Chromosome, data=Mon, layout=c(5,12), > xlab="Element Length", type="percent", col="grey60", > strip=strip.custom(style=3,

[R] changing order of lattice plots

2009-03-23 Thread Dan Kortschak
Hi, This is another question relating to my 2 factor figure. densityplot(~End-Begin | Type * Chromosome, data=Mon, layout=c(5,12), xlab="Element Length",type="percent", col="grey60", strip=strip.custom(style=3, bg="grey90", par.strip.text=list(cex=0.5))) I would like to flip the plot so those at

[R] lattice multipanel strip placement - with two factors

2009-03-22 Thread Dan Kortschak
Hi, I'm making a multipanel lattice densityplot figure with 2 factors (3 and 20 classes in each factor) with the following statement (the type="percent" is there to prevent plotting the actual points which detract from the figure - is there another way of doing this?): densityplot(~End-Begin | Ty