[R] unique rows

Dear list, I would like to extract from a matrix all those rows, that are unique. By unique, I don't mean the unique that is accomplished by the function unique(), though... Consider the following example: h [,1] [,2] [1,]44 [2,]14 [3,]41 Now unique(h) returns

[R] extracting from a data.frame

Hi, I am sorry for this simple question, but... How do I extract something from a data.frame? The following is my Problem: I have got a dataframe a with various columns. One of those columns is called V3 and contains elements of the following levels: levels(a$V3) [1] C CA CB CD CD1 CD2

[R] avoiding loops

Hi again, thanks a lot for the quick answer. I just forgot the comma, always these stupid mistakes... Anyways, as I said before, I have two data.frames containing about 1000 rows and I would like to avoid looping through all of them... In each data.frame are coordinates (x,y,z), so every row

[R] strange behaviour of negative binomial

Dear list, I ran into a strange behaviour of the pnbinom function - or maybe I just made a stupid mistake. First thing is that pnbinom seems to be very slow. The other - more interesting one - is that I get two different curves when I plot the estimated density and the density given by pnbinom.

Re: [R] strange behaviour of negative binomial

23:32 schrieb Peter Dalgaard: dax42 [EMAIL PROTECTED] writes: Dear list, I ran into a strange behaviour of the pnbinom function - or maybe I just made a stupid mistake. First thing is that pnbinom seems to be very slow. The other - more interesting one - is that I get two different curves when I plot

[R] quantiles for geometric distribution

Dear list, I have got an array with observational values t and I would like to fit a geometric distribution to it. As I understand the geometric distribution, there is only one parameter, the probability p. I estimated it by 1/mean(t). Now I plotted the estimated density function by

[R] labels and counting

Hello, I have got the following problem: given is a large string sequence consisting of the four letters A C G and T (as before). Additionally, I have got a second string sequence of the same length giving a label for each character. The labels are + and -. Now I would like to create an 8x8

[R] number format

This mailing list truly is amazing. Thank you so much for all the help! I feel a little strange asking something that simple again, but I wasn't able to find it in the help... Is there a way to tell R how to display numbers (double)? How many numbers after the decimal point, etc... Thanks

[R] numeric(0)

Dear all, I am trying to calculate a score for a string sequence consisting of the following four letters: ACGT. I have got a matrix giving the scores for each pair of letters. So for example the string ACCT has got the pairs: AC, CC and CT. The matrix has got the following form:

Re: [R] numeric(0)

Hi, it's true, simply adding the parenthesis does the trick. Anyways, I am trying to do it without the loop now. Thanks for helping out! Cheers, Dax Am 29.12.2004 um 14:45 schrieb (Ted Harding): On 29-Dec-04 dax42 wrote: I am now trying to sum up all the scores with the following code: score-0