similar to: how to get the data in a circle

I have some programs which were writen in mathematica or c language, but I donot know how to use these software. So I want to run them in R. Can I do it ? How to run "mathematica" or "c" programs in R? Jian Zhang [[alternative HTML version deleted]]

I think there is a question in R. I donot know the reason. This is my data about comulative percentage figure. The result is not right. The first point (no=1,leiji=26.94350) in the plot figure was showen in a lower location. Why? Thanks ! > fre no leiji 1 1 26.94350 2 2 46.86401 3 3 60.59032 4 4 72.17355 5 5 77.85521 6 6 82.05853 7 7 85.56495 8 8 87.64378 9 9

how to draw a circle (e.g. radius=10cm) of one point? And how to choose these points in the circle? Thanks! [[alternative HTML version deleted]]

Hi,everyone. I use the following program calculates Fisher's alpha from counts of individuals and species. The program is wrote by Prof. Kyle Harm. However, when I run the program, it can work very quickly sometimes, but it can not work very well sometimes. It depends on the counts of individuals and species. For example, > calc.alpha(1000,70) [1] 17.14375 > calc.alpha(10000,70) [1]

Hi! I want to use the package "SPLANCE" to do Ripley's K analysis I have a basic question about the package. I try to find how to do it, but I cannot. I hope you can help me. I donot know how to change my data form to "point data set". my data form is: > qumo[1:5,] code species dbh x y tag status branch 223 10312 QUMO 54.5 7.83 44.80 10306 alive

Hi! I want to choose part of the data. But it has a question. > attach(PIKO) > PIKO[1:5,] code species dbh x y tag status branch 92 10142 PIKO 38.9 6.05 12.81 10165 alive 0 109 10213 PIKO 41.0 6.71 26.21 10202 alive 0 135 10222 PIKO 48.3 18.98 21.28 10214 alive 0 146 10223 PIKO 47.0 19.45 22.83 10224 alive 0 147 10223 PIKO 20.0 19.74

I want to analyze the co-occurrence of some species. In some papers, the authors said that the index"the number of species combinations (COMBO)" is a good index. I try to calculate the index by R language. But I can not get the right value. I think that I do not understand the concept of the index because my english is not good. The concept: *The number of species combinations *This

Dear R-Community. I am trying show pie charts on a graph. To be precise, I have series of catch calues by species by geographic (5 deg by 5 deg) regions. I want to draw circles (actually pie charts showing the proportion of the catch in each area) so that I have a graph of catch by species by geographic area! I know there is the < symbols(dat$lon,dat$lat,circles = dat$sp1, add=TRUE) > but

Hey, folk. I am trying to get many figures by using the function "xyplot" in the library "lattice". I tried to using the loop to finish it quickly. But I cannot open the saved file after I run the program. But if I use the function "plot" to get other simply figures, it can work. So I want to ask how I can get the saved figures by using "xyplot". The

I want to replace some objects in one row or column.For example, One colume: a,b,a,c,b,b,a,a,c. I want to replace "a" with "1", "b" with "2", and "c" with "3". Like this: 1,2,1,3,2,2,1,1,3. How to do it? I donot know how to do it. Thanks. [[alternative HTML version deleted]]

hi! I did Riply's K function and envelope in the package "SPATSTAT". When the species number is less, it can work well and it is quickly. But when the species number is more(example:2000), it told me"memory limit". So I change "memory limit". But the speed is very slow. I took 13 hours to run the programe. Perhaps there are other methods that can do it. Or just

Dear List members I am trying to find a way to generate a random point in a circle centred in a geographical location. So far I have used the following formula (see code below): random_x = original_x + radius*cos(angle) random_y = original_y + radius*sin(angle) where radius is a random number between 0 and the radius of the circle and angle is between 0 and 360 degrees The code bellow works

Hello all, I'm trying to create a heatmap using 2 matrices I have: z and v. Both matrices represent different correlations for the same independent variables. The problem I have is that I wish to have the values from matrix z to be represented by color intensity while having the values from matrix v to be represented by circle size. I currently have the following in front of me and an unsure

I can load the package in other R file, but I can not do it in the file. How to solve the question? > local({pkg <- select.list(sort(.packages(all.available = TRUE))) + if(nchar(pkg)) library(pkg, character.only=TRUE)}) Loading required package: tcltk Loading required package: car Error in parse(file, n, text, prompt) : syntax error in "*" Error: .onAttach failed in

Hi, I should preface this problem with a statement that although I am sure this is a really easy function to write, I have tried and failed to get my head around writing functions in R. I can use R where functions exist to do what I want done, but have found myself completely incapable of writing them myself. The problem is that I have a table with several rows of species and several columns of

I want to load many files in the R. The names of the files are "Sim1.txt", " Sim2.txt", "Sim3.txt", "Sim4.txt", "Sim5.txt" and so on. Can I read them at one time? What should I do? I can give the same names in R. Thanks. For example: > tst=paste("Sim",1:20,".txt",sep="") # the file names > tst [1]

Hi all,I would like to draw a simple circle where the color gradient follows the rule color = 1/(r^2) where r is the distance from the circle. I would also like to add a color bar with values going from -40 to -110 (and associate those with the color gradient that fills the circle). So far I experiemented with draw circle

On 15/06/17 05:29, David Winsemius wrote: > >> On Jun 14, 2017, at 10:18 AM, David Winsemius <dwinsemius at comcast.net> wrote: >> >> >>> On Jun 14, 2017, at 9:46 AM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us> wrote: >>> >>> I don't see a question. If your question is whether R supports pattern fills, AFAIK it does not. If that is

I would like to draw a circle on a graph I am plotting in R and use the current plot's coordinate system. The most basic functionality I am looking for is the ability to plot a circle on an already existing graph by simply providing the xy coordinates for it's centre and the radius. I am also looking for a way to obtain x,y values of a point (of a circle) by specifying only the origin x,y

Envoy? depuis mon appareil Samsung -------- Message d'origine -------- De : Rolf Turner <r.turner at auckland.ac.nz> Date : 14/06/2017 22:53 (GMT+01:00) ? : David Winsemius <dwinsemius at comcast.net> Cc : r-help at r-project.org Objet : Re: [R] [FORGED] Re:&nbsp; draw stripes in a circle in R On 15/06/17 05:29, David Winsemius wrote: > >> On Jun 14, 2017, at