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42 results for “from:Jenny Barnes”

Which distribution best fits the data?
Jenny Barnes · Jun 30, 2008 · r-help

Dear R-help community, Does anybody know of a stats function in R that tells you which distribution best fits your data? I have tried look through the archives but have only found functions that tell you if it's...

thicker axis in levelplot
Jenny Barnes · Nov 2, 2007 · r-help

Deepayan, You are a star - thank you that worked perfectly! Many thanks, Jenny On 11/1/07, Jenny Barnes <jmb at mssl.ucl.ac.uk> wrote: > Thank you for your reply - I'm afriad that just doesn't work, any...

random numbers selection - simple example
Jenny Barnes · Jun 6, 2007 · r-help

Dear R-help, Which random number generator function would you recommend for simply picking 15 random numbers from the sequence 0-42? I want to use replacement (so that the same number could potentially be picked more than once). I...

How to plot wind direction and strength field
Jenny Barnes · Apr 29, 2008 · r-help

Dear R-help community, I have searched through the archives and not been able ot find any advice on how to plot a wind field with one arrow per grid square with the arrow pointing in the direction of the...

Problem installing R onto Solaris 2.10 system - need advice!!!!!
Jenny Barnes · Mar 16, 2007 · r-help

Dear R-Help friends, I am unable to get the latest version of R (2.4.1) to compile on my solaris 10 system - has anybody else experienced this problem and are you able to offer me any advice? I...

P-value
Jenny Barnes · Oct 3, 2007 · r-help

Hi, why don't you try try ks.test(VeriSeti1, VeriSeti2)$p.value All the best Jenny >How can i print only the P-Value of the kolmogorov smirnov test? > > >> ks.test(VeriSeti1, VeriSeti2) > > Two-sample Kolmogorov-Smirnov test > >data...

how do you interpolate a gaussian grid to a standard 2.5 degree grid?
Jenny Barnes · Dec 12, 2006 · r-help

Dear R-help community, I have looked on the R search site and archives but cannot find mention of a way of interpolating a gaussian distribution of data to a standard 2.5 degree grid. I have two global dataset...

thicker axis in levelplot
Jenny Barnes · Oct 31, 2007 · r-help

Dear R-help community, I need to find out how to make the black axis line around my plot thicker in levelplot, I cannot find the correct command in ?levelplot or ?par - or if it is there I cannot get...

upside down image/data
Jenny Barnes · Dec 11, 2006 · r-help

Dear R-community, I am looking for some simple advice - I have a matrix (therefore 2 dimensional) of global temperature. Having read R-help I think that when I ask R to image() or levelplot() my matrix will it actually...

Overlaying a single contour from a new data array in levelplot
Jenny Barnes · Jul 24, 2007 · r-help

Dear R-Help community, I am trying to overlay a single contour line over a correlation plot using levelplot in the lattice package. These are the two arrays: 1) a correlation plot over Africa - so each grid square is a...

is there a function to give significance to correlation?
Jenny Barnes · Apr 19, 2007 · r-help

Dear R-Help, I am trying to find a function that will give me the significance of the correlation of 2 variables (in the same dimension arrays) correcting for serial autocorrelation. How can I view the function cor.test's...

loop is going to take 26 hours - needs to be quicker!
Jenny Barnes · Dec 14, 2006 · r-help

Dear R-help, I have a loop, which is set to take about 26 hours to run at the rate it's going - this is ridiculous and I really need your help to find a more efficient way of loading...

How to plot wind direction and strength field
Jenny Barnes · Apr 29, 2008 · r-help

Hi Jim, I would like to plot something like figure 2 on this webpage: http://www.cnrfc.noaa.gov/storm_summaries/jan1997storms.php My data is very large - covering the whole globe at 2.5deg resolution so longitude=144 girds...

correlation value and map
Jenny Barnes · Jan 10, 2007 · r-help

Dear R-help community, I have 2 different arrays of precipitation data each of the same dimensions of [longitude, latitude, time] dim=[30,32,43], called array1 and array2. I need to correlate them. This is the code I used...

correlation value and map
Jenny Barnes · Jan 10, 2007 · r-help

Hi Zoltan, Right, I have 30x32=960 data points per year (It is actually the mean febuary precipitation total in case you were wondering) at each grid point over the world, so I have 960 data points each of the...

reaccessing array at a later date - trying to write it to file
Jenny Barnes · Nov 23, 2006 · r-help

Dear R-help community I am trying to write an R object (data.out) to a file in order to re-access it later and not have to re-load up the array with data every time. Here is the...

How to plot wind direction and strength field
Jenny Barnes · Apr 29, 2008 · r-help

Thanks Jim - here is some data: u <- array(NA,c(5,8)) t <- seq(from=0.5, to=0.11,length=15) t2 <- seq(from=(-0.7),to=(-0.1),length=25) u[1:15] <- t u[16:40] <- t2...

random numbers selection - simple example
Jenny Barnes · Jun 6, 2007 · r-help

You're all stars - thanks for the replies - I will go ahead and use sample........... I need to do this about 10,000 times - any suggestions for this or simply put it in a loop 10,000 times outputting each...

How to plot wind direction and strength field
Jenny Barnes · Apr 29, 2008 · r-help

Hi Jim, I forgot to say that I don't want to create curved arrows, just straight - and I would like them to be proportional to the magnitude :o) Thanks again for your time! Jenny On Tue, 29 Apr 2008...

compiling latest version of R
Jenny Barnes · Mar 7, 2007 · r-help

Dear R-help community, I have had trouble in the past installing the latest version of R: we got the errors shown below (the computer specifications and version of R are below that). Does anybody have tips for compiling the...

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