similar to: Formatting numbers with a limited amount of digits consistently

I have data from several sensors that recorded data at hourly intervals during seven months. I want to separate daily variation from the trend, and also be able to zoom in on only one month of data. I have not been able what functions to use, I can not figure out from the help for 'ts' how to use hourly data. I guess this is routine-work for a lot of people so I hope someone can

I have been using R for a few months to plot my data, and fit statistical models and so on. It is stated that R is not only a package for statistcs and graphics but also a programming language. Currently I am working with Fortran 90 to do numerical simulations (1D reactive -transport), and subsequently visualize it in some external software (spreadsheet). As I now started using R I will plot my

I want to create a character vector based on the table (shortened for display) below: Where there are ones in the matrix I want the column name to appear and where there are zeros nothing, which would make the vector in this shortened case: combinations <- ("A B","A C","A E H","A F G","B C D","E G H",A C D E H","A C D F

I really like to use R for all my graphs, and as I work with stable isotopes I want to have a proper chemical notation in my plots I have looked at ?plotmath, but didn't find the answer and also searched the R website. ------------------------------------------------------------------------ -- plot(1:10,xlab=expression(^{14}*C)) # I want to have a superscript with nothing in front, but it

Do I have the right impression that it's currently not possible to produce confidence intervals for the nls predictions using R? I had a course were we used SAS PROC nlin and there you could get intervals for the parameters and the prediction but I do not have access to SAS. Would it be difficult to implement, I tried to dig into the help pages of nls, vcov and nlsModel but I could not

I would like to display output to a tcltk window from e.g. a call to summary(). I tried to get something else than oneliners into a text window of the kind found at: http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/TextWindows.html But without success. Henrik ------------------------------------------------------------- Henrik Andersson Netherlands Institute of Ecology - Centre for

Hello fellow R people, I can not figure out a pretty way to use strplit with vectors Imagine that I got the following data from someone with ID's representing several factors ID data A1-B1-t1 0 A1-B1-t2 1 A1-B2-t1 5 A1-B2-t2 10 A1-B10-t1 0 A1-B10-t2 1 A1-B20-t1 5 A1-B20-t2 10 ... I would like to turn this dataframe to station substation time data A1 B1 t1 0 A1 B1 t2 1 A1 B2 t1 5

Hello R-people, I have a function which plots two figures next to each other using if(dev.cur()==1) x11(width=14,height=7) to create a new window and set the size of the window automatically if no device is open. This works fine in interactive mode but I don't know how Sweave gets the parameters for the figures, and right now the default behavior causes this figure to be square and the

Just a small suggestion since Windows have a file system not designed for command line use... Would it be possible to add the possibility of automatically adding/modifying the path to the R executables in the windows installer program? --------------------------------------------- Henrik Andersson Netherlands Institute of Ecology - Centre for Estuarine and Marine Ecology P.O. Box 140 4400 AC

If I want to fiddle with the axes, I normally plot things like this for instance plot(1:5,axes=F) axis(2,labels=letters[1:5]) BUT, if I want to do remove the axes from a scatter plot matrix using i.e. pairs(cbind(runif(10),runif(10)),axes=F) I get Error in plot.default(x[, j], x[, i], xlab = "", ylab = "", axes = FALSE, : formal argument "axes" matched by

I would like to have arrow heads at the end of my axes, since I am plotting variable where the absolute amount is irrelevant, there is not supposed to be numbers on the axes. An imperfect example: plot(rnorm(10),bty='l',xaxt='n',yaxt='n',ylab='',xlab='',type='l') abline(h=0) Like this but without, the xaxis and with arrrowheads More like this in

I have used Sweave a lot the latest year, but never really used any long function calls. If I have code which look like this ------------------------------------------------------------- gof <- benthic.flux(ID="Gulf of Finland", meas.conc=conc, bw.conc=bw.conc, time=times,

Dear R-gurus, I would like to zoom in a plot, e.g. I select a region on the x-axis and then I would like the ranges on the y-axis to change accordingly. Is it possible to do this with existing functions, or do I have to invent some data selection before plotting? See below a short example, where I select ylim with trial and error, which I want to avoid. Cheers, Henrik Andersson

Here's another way: > dat <- read.table("clipboard", header=TRUE)[,-(1:3)] > dat A B C D E F G H 1 1 1 0 0 0 0 0 0 2 1 0 1 0 0 0 0 0 3 1 0 0 0 1 0 0 1 4 1 0 0 0 0 1 1 0 5 0 1 1 1 0 0 0 0 6 0 0 1 0 1 0 1 1 7 0 0 0 1 1 1 0 1 8 1 0 1 1 1 0 0 1 9 1 0 1 1 0 1 1 0 > apply(dat > 0, 1, function(idx) paste(names(dat)[idx], collapse=" ")) 1 2

I am about to write general functions to read the output of simulations models. These model generate output files with different sections which I want to analyze plot etc. Since this will be used many people at the department I wanted to make sure that will do this in the best way. For instance I want to read a snippets of data from a text that look like this.

Hello I would like to make a graph with two variables, with different units, so I would like to have two y-axes, one on the left and one on the right with different scales. Is this possible? I have searched through all the documentation I could find on the R homepage without luck and I like R very much and would rather not resort to using something like SigmaPlot for this seemingly simple thing.

I apologize in advance for posting a question not related to R. I need references to papers that use multiple linear regression in an industrial application and also in a biological experiment. This is aimed to biologists/chemists (non-statisticans) so if anyone has written a brilliant paper where the use of multiple regression is important and also understandable to people with little

Hi, I am trying to solve a model that consists of rather stiff ODEs in R. I use the package ODEsolve (lsoda) to solve these ODEs. To speed up the integration, the jacobian is also specified. Basically, the model is a one-dimensional advection-diffusion problem, and thus the jacobian is a tridiagonal matrix. The size of this jacobian is 100*100. In the original package

Hi, I'm trying to analyse some time series data on dissolved organic nitrogen. Because it has gaps in it, I try to interpolate (linear) with the regul method from the pastecs package. I have a number of stations with measurement series in a matrix constructed from a data frame with the unstack method (temp) I also used the unstack method to make a similar matrix for the time points

Hello, how can use change the plot function to change the range of axises. I want my graph from a certain range [a, b], instead of from the min to max of of datas? if i want draw a line instead of dots, should i use both plot and lines function. for example: plot(x, y); lines(x, y); things seem not working if i only use lines(x, y). Thank you so much. Cuichang Zhao Jan 25, 2005