User: ALAN SMITH

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ALAN SMITH40
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40
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Last seen:
12 years, 10 months ago
Joined:
13 years, 1 month ago
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a*********@gmail.com

Posts by ALAN SMITH

<prev • 4 results • page 1 of 1 • next >
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libraries or commands to help with parsing or handling web based database queries
... Hello Bioconductors I am having a very hard time figuring out how to make web based database query results into a nice neat table (if such a thing is possible in R). I am constantly searching the metabolite database METLIN by copying and pasting addresses. I have to search this database with sever ...
process keggsoap written 12.8 years ago by ALAN SMITH40 • updated 12.8 years ago by Thomas Girke1.7k
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normalization of a microarray like dataframe and removing missing data by % missing
... Hello, I have several questions about data normalization of a large matrix of intensity data (21269,72) (non-microarray data). summary(MYdata) #### example of data NOTE many NAs ######## ID a b c Min. : 1 Min. : 2003 ...
normalization written 12.8 years ago by ALAN SMITH40
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KEGGSOAP questions: how to handle multiple annotations in R data frames, and why does a "for" loop only use one annotation.
... Hello, I am attempting to use R to query KEGG in order to find cpd IDs from neutral masses and eventually link these cpd IDs up to the pathways they are part of. I have several question that are listed after the example R code for the problems. Finally, at the end is what I think the ideal result w ...
annotation keggsoap written 13.1 years ago by ALAN SMITH40
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help with KEGG or KEGGSOAP
... Hello, I would like to access the KEGG database from R and a create list of compound IDs from neutral masses. Does anyone know if this is possible in R and if so how one could perform it in R. I also am not able to get the examples to work in KEGGSOAP. The error is this examples occurs in the other ...
keggsoap written 13.1 years ago by ALAN SMITH40 • updated 13.1 years ago by Nianhua Li870

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