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...from 0 to 1 in continuous form) and I have a set of points where I know that species really occurs. But I don´t have points of absence. So, for each true presence I know the estimated presence. I would like to know how can I compute AUC, taking account these Available data. Best wishes, Miltinho autronauta brazil [[alternative HTML version deleted]]

Dear all I have a code like x<-1:10 y1<-x+runif(10)*2 y2<-seq(0,50,length.out=10)+rnorm(10)*10 par(mfrow=c(1,2)) plot(y1~x) plot(y2~x) Now I would like to plot y1 and y2 on the same graph, with its two scales (y1 on left and y2 on rigth side). Any help are welcome. Kind regards Miltinho Brazil [[alternative HTML version deleted]]

...d the XY coordinate which the user clicked. Roughly I wrote a short code below. You see that I suppose that the user will choose four coordinates inside the region of intersection between three segmentes. On each click, I would like to record the position clicked in a vector. Any help are welcome. Miltinho ----- number.clicks<-4 for (i in 1:number.clicks) { plot(0,0, type="n") seg1<-arrows(-0.5,-1,0.5,0, col=1) seg2<-arrows(0,-1,-0.3,0.3, col=2) seg3<-arrows(0.2,-0.7,-0.5,0, col=4) # here I would like click on PLOT # and record de XY position # before go to next aquisiti...

Dear all, I have a set of x,y,z points obtained from a lizard species and now I would like to estimate the three-dimensional use of space for this species. I know that 2D area I can estimate using adehabitat packages, but I don´t know how to estimate the volumetric space. Any help are welcome. Miltinho Brazil [[alternative HTML version deleted]]

Hi there, I´m trying to use "simecol" package but I got the error showed below. I´m runnig R version 2.4.0 (2006-10-03). Kind regards, miltinho Brazil --- > require(simecol) Loading required package: simecol Error in loadNamespace(package, c(which.lib.loc, lib.loc), keep.source = keep.source) : in 'simecol' methods specified for export, but none defined: fixInit, fixParms, fixTimes, plot, print, solver, solver<...

...ame I would like that the new data.frame have many rows as the population collumn. place<-c("place1", "place2", "place3", "place4", "place5") population<-c(100,200,300,50,30) my.df<-data.frame(cbind(place,population)) my.df best wishes, miltinho astronauta brazil [[alternative HTML version deleted]]

...we are happy to hear about them (bug tracker/forum/email). > xls.getshlib() Loading required package: tools --- xls.getshlib running... --- - zipped shlib has been downloaded from ' http://dl.dropbox.com/u/2602516/swissrpkg/bin/win32/shlib/xlsReadWrite_1.5.1_dll.zip' to 'C:\Users\Miltinho\AppData\Local\Temp\Rtmp2cUZxb/xlsReadWrite.zip' - md5 hash value has been read from ' http://dl.dropbox.com/u/2602516/swissrpkg/bin/win32/shlib/xlsReadWrite_1.5.1_dll.zip.md5.txt' - zipped shlib has correct md5 hash - zipped shlib has been extracted to'C:\Users\Miltinho\AppDa...

...choose an family of fonts. I tryed par(family="times") without success. Surfing on R archieve I got an suggestion of use par(font.lab=6), but when I go to the par(font.lab) help the highest value there is 5. How can I have sure that font.lab=6 is the Times New Roman? Thanks in advance, miltinho astronauta brazil --- op<-par() x11(800,500) par(mfrow=c(1,2)) x<-plot(runif(100),rnorm(100) , main="standard font") par(font.lab=6) par(font.axis=6) x<-plot(runif(100),rnorm(100) , main="font=6") par<-op [[alternative HTML version deleted]]

...like hear from you if anyone have some suggestin in this regards. I have also ArcGis 8.6 ans Erdas 8.3 running on my system and I can read the largest file without problem. But I dont know how clip the large image to keep only those pixels that math to he smallest image coordinates. kind regards, miltinho para armazenamento! [[alternative HTML version deleted]]

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I am trying to produce a simple plot where the points in the plot are actually integers from my data. That is, I am making a length/width plot and I would like the points, rather dots or triangles, appear as different numbers corresponding to a column in my data. I have tried using this: ...,pch="column title" but this merely returns the first letter of the column title, B. Is there

Hi, how can I treat data organised in classes and frequencies? Ex. class frequency 20-23 9 23-25 7 26-28 5 29-31 5 32-34 3 Thanks Angelo Scozzarella

Hi, How can I make the cor(x, y, method="spearman") call to produce an error when the input to it (x, y) produces an error? Here is a simple example: > a <- c(0, 1, 2) > b <- c(100, 2, 4) ## error: > log(a) [1] -Inf 0.0000000 0.6931472 ## error, as expected: > cor(log(a), log(b), method="pearson") [1] NaN ## not an error any more (not expected): >

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...1990 1 1 ... 1990 1 2 ... 1990 1 3 ... 1990 2 1 ... 1990 2 2 ... 1990 2 3 ... I´d like to compute the mean rainfall for each YEAR * SITE combination. Kind regards, Miltinho --------------------------------- [[alternative HTML version deleted]]

...zil Sp4 21.5 30 5 And I need for example only "columns" Bodysize Weigth and Age when Region=="Brazil" AND Species=="Sp2" AND Age>=3 In fact my dataset is greater than this, but it is just a example. Thanks for all helps, Kind regards, Miltinho --------------------------------- Música para ver e ouvir: You're Beautiful, do James Blunt [[alternative HTML version deleted]]

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...t;,"a","c","d"),12) df<-data.frame(cbind(site,species)) df2<-table(df) But when I convert df2 to data.frame I miss the square format. I would like have my data.frame like this: site a b c d s1 8 4 4 4 s2 8 4 4 4 s3 8 4 4 4 Any help? Miltinho --------------------------------- [[alternative HTML version deleted]]

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