Displaying 20 results from an estimated 10000 matches similar to: "find overlap between intervals"
2007 Oct 31
1
find overlap between intervals - Correction
Dear all,
Sorry for the previous email. I had a wrong example output:
Input:
Start End
440 443
380 443
290 468
CORRECTED Desired output:
Start End
290 380
380 440
443 468
Best regards,
João Fadista
[[alternative HTML version deleted]]
2007 Jul 18
2
remove columns having a partial match name
Dear all,
I would like to know how can I retrieve a data.frame without the columns that have a partial match name. Let´s say that I have a data.frame with 200 columns and 100 of them have the name "StartX", with X being the unique part for each column name. I want to delete all columns that have the name starting with "Start". I´ve tried to do this but it doesn´t work:
>
2007 Jun 28
4
compare 2 vectors
Dear all,
I would like to take out the values from one vector that are equal to the values in another vector.
Example:
a <- c(1,2,3,4,5,6,7,8,9)
b <- c(3,10,20,5,6)
b_noRepeats = c(10,20)
So I would like to have the vector b without the same values as vector a.
Kind regards,
João Fadista
[[alternative HTML version deleted]]
2007 Jul 20
3
binned column in a data.frame
Dear all,
I would like to know how can I create a binned column in a data.frame. The output that I would like is something like this:
Start Binned_Start
1 0-5
2 0-5
6 5-10
8 5-10
13 10-15
...
Best regards
João Fadista
Ph.d. student
UNIVERSITY OF AARHUS
Faculty of Agricultural Sciences
Dept. of Genetics and Biotechnology
Blichers
2008 Apr 08
4
permutation test assumption?
Dear all,
Can I do a permutation test if the number of individuals in one group is much bigger than in the other group? I searched the literature but I didin´t find any assumption that refers to this subject for permutation tests.
Best regards
João Fadista
Ph.d. student
UNIVERSITY OF AARHUS
Faculty of Agricultural Sciences
Dept. of Genetics and Biotechnology
Blichers Allé 20, P.O.
2007 Mar 23
2
concatenate 2 data.frames
Dear all,
I would like to know how can I concatenate 2 data.frames into a single one. Both data frames have the same number of columns and the same class type in each correspondent column. So what I want is to have a new data.frame where I have first the values from one data.frame and then the values from a second data.frame would came after in this new data.frame.
Thanks in advance.
Med
2007 Sep 05
6
length of a string
Dear all,
I would like to know how can I compute the length of a string in a dataframe. Example:
SEQUENCE ID
TGCTCCCATCTCCACGG HR04FS000000645
ACTGAACTCCCATCTCCAAT HR00000595847847
I would like to know how to compute the length of each SEQUENCE.
Best regards,
João Fadista
[[alternative HTML version deleted]]
2007 Sep 06
1
order intervals in a data.frame
Dear all,
I would like to know how can I order a data.frame with increasing the dat$Interval (dat$Interval is a factor). There is an example below.
Original data.frame:
> dat
Interval Number_reads
0-100 685
200-300 744
100-200 1082
2007 Oct 10
1
subsetting a data.frame
Dear all,
I would like to be able to subset a data.frame in a special way. I will put here an example:
Score Name
88 000019_0070
88 000019_0070
87 000019_0070
79 002127_0658
79 002127_0658
77 002127_0658
So, for the above example I would like to have a new data.frame that has only the best "Score" for each
2007 Oct 09
1
read only certain parts of a file
Dear all,
I would like to know how can I read a text file and create a data frame of only certain parts of the file.
For instance, from this text file:
===================================================
Matches For Query 0 (108 bases): 000019_0070
===================================================
Score Q_Name S_Name Q_Start Q_End S_Start S_End Direction Bases identity
89 000019_0070
2007 Mar 30
1
Model comparison
Dear all,
I would like to know if I can compare by a significance test 2 models with different kind of parameters. Perhaps I am wrong but I think that we can only compare 2 models if one is a sub model of the other.
Med venlig hilsen / Regards
João Fadista
Ph.d. studerende / Ph.d. student
AARHUS UNIVERSITET / UNIVERSITY OF AARHUS
Det Jordbrugsvidenskabelige Fakultet / Faculty of
2007 May 30
2
runif with weights
Dear all,
I would like to generate 25 numbers from 1 to 100 but I would like to have some numbers that could be more probable to come out. I was thinking of the function runif:
runif(25, 1, 100) , but I don?t know how to give more weight to some numbers.
Example:
each number from 2 to 10 has the probability of 40% to come out but the probability of each number from 11 to 100 to come out is
2007 May 15
0
sliding window approach
Dear all,
I would like to know if there is any R package that uses a sliding window approach to assess statistical significance out of my data. My data is composed of DNA sequences (of variable length) that are mapped to a genome with a determined score of alignment.
So, I want to see if I can find more tags in a given region of the genome as opposed to finding them by chance. In this sliding
2007 May 31
0
distribution of peaks in random data results
Dear all,
I have the positions of N points spread through some sequence of length L (L>N), and I would like to know how can do the following:
1- Permute the positions of the N points along the whole sequence.
Assuming a uniform distribution I did: position1 <- runif(N, 1, L)
2- Apply a kernel convolution method to the resulting permuted points profile.
For this I applied the
2007 Jul 19
0
test about distribution of data in a single population
Dear all,
I would like to know how can I test which are the intervals of my data that have significant less or more counts than the other intervals.
Example:
Interval [1:200] [200:400] [400:600] [600:800] ... more 900 hundred columns
Count 12 28 7 5
Thanks in advance,
Best regards
João Fadista
Ph.d.
2012 Sep 12
1
SNPRelate package error
Dear all,
I am using the R package SNPRelate but I found an error when I run the following command. Do you know what might be the problem? Thanks in advance.
> vcf.fn <- system.file("extdata", "sequence.vcf", package="SNPRelate")
> snpgdsVCF2GDS(vcf.fn, "test.gds")
Start snpgdsVCF2GDS ...
Open
2007 Oct 17
2
wilcox.test test statistic
Dear all,
When we perform a Wilcoxon rank sum test (on two samples with different sizes) we get a test statistic. My question is, as the value of test statistic increases the difference between the distributions of the two samples also increase, right?
Thanks in advance,
João Fadista
[[alternative HTML version deleted]]
2012 Jan 06
5
add data to a file while doing a loop
Hi,
I would like to know how can I keep adding data to a file while doing a loop and without deleting the data of the previous iteration. Thanks.
2013 Feb 27
2
matrix multiplication
Hi,
Try this:
#mat1 is the data
res<-do.call(cbind,lapply(seq_len(nrow(mat1)),function(i) {new1<-do.call(rbind,lapply(seq_len(nrow(mat1[-i,])),function(j) {x1<-rbind(mat1[i,],mat1[j,]); x2<-(abs(x1[1,1]-x1[2,1])*abs(x1[1,5]-x1[2,5]))+(abs(x1[1,2]-x1[2,2])*abs(x1[1,6]-x1[2,6]))+(abs(x1[1,3]-x1[2,3])*abs(x1[1,7]-x1[2,7]))+(abs(x1[1,4]-x1[2,4])*abs(x1[1,8]-x1[2,8]))}));new1}))
2011 Dec 27
1
differences between 1.7 and 1.7.1 glmnet versions
Dear All,
?
I have found differences between glmnet versions 1.7 and 1.7.1 which, in
my opinion, are not cosmetic and do not appear in the ChangeLog. If I am
not mistaken, glmnet appears to return different number of selected
input variables, i.e. nonzeroCoef(fit$beta[[1]]) differes between
versions. The code below is the same for 1.7.1 and 1.7, but you can see
that outputs differ. I would