Fundamental introduction to regular expression (regex or regexp for short) in R. Repost by indicating the source please!
One week ago, I encoutered a problem when I was learning The Art of R Programming (page 35), I would like to use pattern match, that is regex, however, something unusual happened. I sought for help on
stackoverflow, you could find the question here (unfortunately duplicated). The answer by akrun invokes my interest on regex!
Regex is kind of independent but important concept that is almost implemented by every programming language. Although this post is titled with “01”, I suggest, you could come back learning this when you come across some concrete problems related, that would make you understand more clearly!
本讲主要介绍正则表达式(regular expression, regex)的概念、主要语法风格以及在R中的使用方法。欢迎转载，但请注明出处！
I would like to post a series recording my way of learning R language, with the name “leaRning”! Repost by indicating the source please!
Because I swithed my major to bioinformatics in which data manipulation is the core, on the other hand, the R programming language is irreplaceable now for data science, so learning R is a necessity and must! What’s more, it would be much easier learning other programming languages after you conquer one.
This is a brief tutorial about methods of downloading sra, sam and fastq files, mainly focusing on Aspera Connect. Repost by indicating the source please!
SRA: Sequence Read Archive: It belongs to NCBI (National Center for Biotechnology Information), is a database storing high throughput sequencing (HTS) raw data, alignment information and metadata. Almost all HTS data in published publications will be asked uploading to here, and stored as .sra compressed file format.
SRA数据库: Sequence Read Archive：隶属NCBI (National Center for Biotechnology Information)，它是一个保存高通量测序原始数据以及比对信息和元数据 (metadata) 的数据库，所有已发表的文献中高通量测序数据基本都上传至此，方便其他研究者下载及再研究。其中的数据则是通过压缩后以.sra文件格式来保存的。