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...tly modelling the probability that two sites are analogues for one another for given dissimilarity using glm(). The data I have then are a logical vector ('analogs') indicating whether the two sites come from the same vegetation and a vector of the dissimilarity between the two sites ('Dij'). These are in a csv file currently in my university web space. Each 'row' in this file corresponds to single comparison between 2 sites. When I analyse these data using glm() I get the familiar "fitted probabilities numerically 0 or 1 occurred" warning. The data do not look...

...handling them. metaMDSdist allow you to add a small value to the zero dissimilarities. The details are in the code, but effectively all zero distances are replaced by half the smallest non zero distance. You could do a similar replacement yourself if you feel this is warranted and/or justified. minDij <- min(Dij[Dij > 0) / 2 Dij[Dij <= 0] <- minDij But still I don't understand how can I modify the NaN values. In my data I don't have any NA values. All the cells are either +ve or zero. Please help me with this. Should I just replace all the NaN values with zero? Please advic...

Hi, I am currently working on some data and feel that NMDS would return an excellent result. With my current data set however I have been experiencing some problems and cannot carry out metaMDS. I have tried with a few smaller data sets which I created for practice sake and this has worked fine. I think it is the set up of my data set that is causing me trouble. I have 18 columns and 18 rows,

i'm working on some distance matrices and i was wondering if there is a way to export the matrices from R to excel. OG thanks [[alternative HTML version deleted]]

Hello everybody. I am trying to cluster circular data (data points which are angles), thus i can not use the "dist" function in "mclust" to generate my distance matrix, I am using the function " Dij = 0.5*( 1 - cos(theta_i - theta_j)). The thing is "hclust" will not accept this distance matrix, i tried to put it in a data frame, but again i get an error message saying " Error in if (n < 2) stop("must have n >= 2 objects to cluster") : argument is of length zero&q...

Hello, everybody, I hope somebody could help me with a dist() function. I have a data frame of size 2*4087 (col*row), where col corresponds to the treatment and rows are species, values are Hellinger distances, I should reconstruct a distance matrix with a dist() function. I know that "euclidean" method should be used. When I type: dist(dframe,"euclidean") it gives me a

...appreciated. I just started debugging but feedback is appreciated if anyone has ideas. -r -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web visit https://groups.google.com/d/msg/puppet-users/-/dbVNeQUD-dIJ. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.

Hi, I need to build ROC curve in R, can you please provide data steps / code or guide me through it. Thanks and Regards Rithesh M Mohan [[alternative HTML version deleted]]

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Is there a way to prevent hwaddr/mac address spoofing between DomU''s? So in a way ''binding'' a mac-address on boot time with a virtual interface? (with something like ebtables/arptables/etc?) Stefan -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla -

...> Content-Type: text/plain On Sun, 2009-08-30 at 09:40 -0700, Grzes wrote: > Yes, I'm using euclidean distances Sorry I deleted the original. Here a some responses; First, to be concrete, here is a reproducible example... set.seed(123) D <- data.frame(matrix(rnorm(100), ncol = 10)) Dij <- dist(D) require(MASS) Dnmds <- isoMDS(Dij, k = 2) Now look at structure of Dnmds: > str(Dnmds) List of 2 $ points: num [1:10, 1:2] -0.356 1.058 -2.114 -0.177 0.575 ...   ..- attr(*, "dimnames")=List of 2   .. ..$ : NULL   .. ..$ : NULL $ stress: num 12.2 The second matrix y...

Hello list. I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without modifications. How did I try it? Created a (non-root) build environment (not a mock ) Installed the kernel.scr.rpm and did a rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee prep-out.log The build failed at the end: Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL Checking

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