Answers.Body: <p><em>Answer from @benn, converted from comments:</em></p>
  <p>You can find a step by step description in the <a href="https://bioconductor.org/packages/release/bioc/vignettes/limma/inst/doc/usersguide.pdf" rel="nofollow noreferrer">limma user's guide</a>. Just download the CEL files, and follow the user guide.</p>
  <p><em>[please edit to improve this answer, if possible]</em></p>
  
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Answers.CreationDate: 2022-06-21T10:29:44.570Z
Answers.LastActivityDate: 2022-06-21T10:29:44.570Z
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Body: <p>The format of the raw data that upload in GEO is different, like TXT, CEL or other form. How can I extract the <strong>list of genes name</strong> from these formats? And then how can I normalize them with R?</p>
  
  <p>I would be really glad if anyone write <strong>step by step</strong> a complete set of codes for R with an example.</p>
  
Tags: <r><microarray><phylogenetics><data-download>
Title: How can extract the list of genes name from the raw data in GEO?
ThreadText: # How can extract the list of genes name from the raw data in GEO?
  
  (Asked by: username_0 on 2019-08-04)
  
  The format of the raw data that upload in GEO is different, like TXT, CEL or other form. How can I extract the **list of genes name** from these formats? And then how can I normalize them with R?
  
  I would be really glad if anyone write **step by step** a complete set of codes for R with an example.
  
  **Tags:** r, microarray, phylogenetics, data-download
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2022-06-21. Score: 0
  
  *Answer from @benn, converted from comments:*
  
  You can find a step by step description in the [limma user's guide](https://bioconductor.org/packages/release/bioc/vignettes/limma/inst/doc/usersguide.pdf). Just download the CEL files, and follow the user guide.
  
  *[please edit to improve this answer, if possible]*
  
  
  ---
  
  