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http://www2.warwick.ac.uk/fac/sci/moac/people/students/peter_cock/r/geo/ This page discusses how to load GEO SOFT format microarray data from the Gene Expression Omnibus database (GEO) (hosted by the NCBI) into R/BioConductor. SOFT stands for Simple Omnibus Format in Text. There are actually four types of GEO SOFT file available: GEO Platform (GPL) These files describe a particular type of microarray. They […] Meta分析的由来： Meta分析（Meta-analysis）是心理学家Glass于1976年首次提出，原文是这样的： Meta-analysis refers to the analysis of analyses. I use it to refer to the statistical analysis of a large collection of results from individual studies for the purpose of integrating the findings. It connotes a rigorous alternative to the casual, narrative discussions of research studies which typify our attempts to make sense of […] Use clustalw to generate nexus format file #NEXUS BEGIN DATA; dimensions ntax=55 nchar=534; format missing=? symbols=”ABCDEFGHIKLMNPQRSTUVWXYZ” interleave datatype=DNA gap= -; Change to as follows: #NEXUS BEGIN DATA; dimensions ntax=55 nchar=534; format datatype=dna interleave=yes gap=- missing=?; then type mb -i *.nex MrBayes > lset nst=6 rates=invgamma Setting Nst to 6 Setting Rates to Invgamma Successfully […] |
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