bioinformatics

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Can I use K-means algorithm on a string?

I am working on a python project where I开发者_开发技巧 study RNA structure evolution (represented as a string for example: \"(((...)))\" where the parenthesis represent basepairs). The point being is[详细]

2023-03-11 22:13 分类：问答
have trouble in installing biopython package

im using mac 10.6.7, and xcode 4 with gcc 4.2 installed. but when i was installing biopython with: python setup.py install[详细]

2023-03-11 12:48 分类：问答
Add tag to bioperl DB::SAM/BAM

I have a bam file and use bioperl (Bio::DB::Sam) to work with it. Now i wanted to ask if there is an开发者_如何学编程y possibility to add tags to alignments in this File?[详细]

2023-03-09 20:06 分类：问答
Ruby: hash that doesn't remember key values

Is there a hash implementation around that doens\'t remember key values? I have to make a giant hash but I don\'t care what the keys are.[详细]

2023-03-08 11:04 分类：问答
python writing a list to a file incorrectly

I am having an issue with writing a list to a file. I am annotating certain files to change them into a certain format, so I read sequence alignment files, store them in lists, do necessary formatting[详细]

2023-03-07 23:21 分类：问答
Conditional for negative integer

I\'m defining a function that calculates the standard deviation of a list. Sometimes the mean of t开发者_如何学运维his list is negative and so my function can\'t take the square root of a negative, re[详细]

2023-03-04 14:21 分类：问答
creating a function to allow for a header row and row names column

I\'m defining a function that will return a list of lists where element zero is the 2Darray, element one is the header information, and element 2 is the rowname. How can I read this in from a file whe[详细]

2023-03-03 23:59 分类：问答
NCBI gene database question

I m trying to find gene_info file with genenames and chromosomal location. However, I can\'t seem to locate 开发者_JAVA百科it on NCBI FTP site. Can anyone give me a pointer?See: ftp://ftp.ncbi.nlm.nih[详细]

2023-03-02 04:22 分类：问答
Finding/Replacing substrings with annotations in an ASCII file in Python

I\'m having a little coding issue in a bioinformatics project I\'m working on. Basically, my task is to extract motif sequences from a database and use the information to annotate a sequence alignment[详细]

2023-03-02 03:36 分类：问答
Defining a function that counts relative frequency of Amino Acids

I\'m trying to calculate codon frequency within a given sequence of DNA. For example: sequence = \'ATGAAGAAA\'[详细]

2023-02-28 17:03 分类：问答