search for: coincidence

Buenas tardes, Quiero aplicar la función rbind y necesito tener los mismos nombres de columnas. Como tengo unas 195 variables en cada dataframe, necesito hacerlo de una forma rápida. Tengo 9 bases de datos y tengo que fusionar todas. ¿Como puedo comprobar que los nombres de las variables son los mismos? Y de lo contrario, ¿como detecto las diferencias? He probado con

Recent news articles concerning an article from The Lancet with fabricated data indicate that in the sample containing some 900 or so patients, more than 200 had the same birthday. I was curious and tried out the p and q birthday functions but pbirthday could not handle 250 coincidences with n = 1000. The calculation of upper prior to using uniroot produces NaN, upper<-min(n^k/(c^(k-1)),1) I was able to get it to work by using logs, however, as in the following version function(n, classes = 365, coincident = 2){ k <- coincident c <- classes if (coincident...

I'm looking at algorithms for determining coincidences. In educational testing, it is interesting to look at cheating via the birthday problem where I can assess the probability of n students having the same test score in a class of size k. I was writing my own code for the b-day problem until I ran into the qbirthday() function, which has solutions...

Hi, I am trying to do a bayesian prediction for soil pollution data above a certain threshold, using geoR. Everything is working fine until i am doing the krig.bayes. I tried to do the prediction on a grid 67 by 113 cells and my computer is freezing to death. At larger numbers of cells it tells me after a while that it reaches the max. memory of 511 Mb. My computer has only 512 Mb of RAM.

Thank You. i used -polly-ast-detect-parallel but there is no coincident info generated; my c code is simple vec-sum as follows; #include <stdio.h> int a[2048], b[2048], c[2048]; foo () { int i; for (i=0; i<2048; i++) { a[i]=b[5] + c[i]; } } i executed following commands; $clang -S -emit-llvm vec-sum.cpp -march=native -O3 -mllvm -disable-llvm-optzns -o vec-sum.s $opt -S

http://www.theregister.co.uk/2009/10/22/win7_launch/ After you read the article, check out the comment about the timing of the CentOS 5.4 release and draw your own conclusions. ;> -- Ron Loftin reloftin at twcny.rr.com "God, root, what is difference ?" Piter from UserFriendly

Dear List, I registered for the useR conference in Rennes today; half an hour after the confirmation I received a first "requested newsletter" from a company selling a product named "Inference for R". This coincidence might be spurious. Or not, depending on frequency. Dieter

Hi all, I have this information on a file ht.txt, imagine it is a data frame without labels: 1 1 1 8 1 1 6 4 1 3 1 3 3 And on other table called "pru.txt" I have sequences similar this 4 1 1 8 1 1 6 4 1 3 1 3 3 1 6 1 8 1 1 6 4 1 3 1 3 3 1 1 1 8 1 1 6 4 1 3 1 3 3 6 6 6 8 1 1 6 4 1 3 1 3 3 I want to now how many positions are identical between each row in pru compared with ht. n and m

...tem attempts a reconnect immediately. If a reconnect is established but is lost again without a full minute of audio, I don't log it as a reconnect. Once a reconnect is established and holds for at least a minute, it is logged as being reconnected. > One explanation could be that by > coincidence they share some piece of networking equipment that failed on > their network path to your icecast box while the windows machines didn't. I see that as highly unlikely. One of the Linux boxes sits next to the server and is on the same switch as serves the connection to the ISP. All other...

...on the fact that I was doing ps -aux | grep R off and on and the total amount of CPU minutes that got allotted before the job ended was about 5 hours and the total actual time that the job took was about 15 hours. Does elapsed = total actual time job taken ? That seems to be the case or a strange coincidence. Does user + system = CPU time from ps -aux | grep R ? That seems to be the case also or a weird coincidence. Finally, why can't the CPU get a higher percentage ? It's seems like it's always around 30% which would make sense since 5 is ~ 30% of 15 hours. Also, assuming my take above...

Hi, pbirthday(, coincident = 2) starts to issue warnings (see (*) below) for larger number of classes (R 4.0.0, R-devel ./src/library/stats/R/birthday.R:47). The default coincident = 2 is computed as 1 - prod((c:(c - n + 1))/rep(c, n)) where c = classes. Using exp(log(...)), one can derive the return value if(n > 0) 1 - exp(sum(log1p(-(0:(n-1))/c))) else 0. Simplifying this a bit further one

...event(): Invalid argument I have found that a diff was created for "src/lib/ioloop-kqueue.c" for a similar issue: http://dovecot.org/pipermail/dovecot/2010-November/054855.html I have patched my system with this and haven't seen the problem since, but I don't know if this is a coincidence. Could you please explain if the diff should actually fix anything or just add some more logging in case it stops again? Best regards Henrik Larsson

Full_Name: Andy Lynch Version: 1.9.1 OS: Windows Submission from: (NULL) (131.111.86.211) As I understand it, pbirthday(n,c,k) gives the approximate probability that we see a class with k coicident people in it when n people are sorted into c classes. so the command > pbirthday(4,classes=3,coincident=4) should give the approximate probability that when four people fall into three

Hi, I came across a case when the dimensions of matrices returned by qr() operated on a sparse matrix does not coincide with the initial matrix. Here is a spinet code that should produce an example (one of many that I could provide): ?m=205 ?n=199 ?set.seed(7); ?a=matrix(rnorm(m*n), m, n) ?a[sample(seq(m*n), m*(n-4))]=0 ?a=as(a, "Matrix") ?qa=qr(a); ?stopifnot(nrow(qa at R) ==

When starting, for example, FreeCell in managed more, the program opens with the top of the window out of the top of my screen (i.e. the top corner of my desktop coincides with the top-left of the menu bar). It's not a huge problem, but I can't move the program... -- ------------------------------------------------- Richard Spandit Firmly on the Linux wagon SuSE 6.3, KDE 2.0

Hello. I have a problem with 2 dataframes. There are 2 columns - "value" and "dates". These dataframes have different dimension. Some dates coincide. And I need to intersect them by dates and have on output two dataframes with identical columns "dates" and new dimension . "value" have to recieve in compliance with dates. Regards, Aleksander. [[alternative

Hi All, is there any effiective and dense/compact method to calculate the mean of a list of - of course coincident - matrices on an element by element basis? The resulting matrix' [i, j]-th element is the mean of the list's matrices' [i, j]-th elements respectively... Iterating by for statement is quite straightforward, but I am seeking for a more elegant solution, and my attempt with

...that it would be better to handle factors, character predictors, and logical predictors consistently. > > "logical predictors" can be regarded as categorical or continuous (i.e. 0 or 1). > And the model matrix should be the same, either way. I think that you're mistaking a coincidence for a principle. The coincidence is that FALSE/TRUE coerces to 0/1 and sorts to FALSE, TRUE. Functions like lm() treat logical predictors as factors, *not* as numerical variables. That one would get the same coefficient in either case is a consequence of the coincidence and the fact that the defa...

...tes. Compression level 6, file size 369517 bytes. Compression level 7, file size 369517 bytes. Compression level 8, file size 366411 bytes. ---------------- " So, basically compression levels 1 & 2 result in the same file size, 4-7 also result in the same file size, now is it just a coincidence, considering the test files are small, or should the compression levels be rewritten, to something like compression level 1, 2, and 3 (not corresponding to the current one two and three ofc.) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/piper...

...error E 171, and B0 F3 D0? D0 F3 B0? I forget, and won't be able to double check my memory till the morning. Has anyone seen this, with a f/s suddenly going r/o, on machines that seemed to be running fine for years? Since this is two? three machines, that's somewhere between "coincidence" and "enemy action". mark