User: Martin Olivier

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13 years ago
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Posts by Martin Olivier

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problem with hyperGTest and ath1121501?
... Dear all, First, I would like to thank S. Falcon, J.W. MacDonald and J. Zhang for their help on my previous questions. I want to use the function hyperGTest on arabidopsis data, but it seems that there is a little bug in this function. This is an example that gives me an error message (hereafter, ...
go written 13.0 years ago by Martin Olivier70 • updated 13.0 years ago by Seth Falcon7.4k
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help with ath1121501
... Hi all, I have (again) some problems to use the package ath1121501. I don't understand the difference between ath1121501G02PROBE and ath1121501GO2ALLPROBES... I made a list listGO2GENE to have for each term GO all the genes that belong to this term GO. For this, I use ath1121501G02PROBE or ath112 ...
go ath1121501 written 13.0 years ago by Martin Olivier70 • updated 13.0 years ago by Seth Falcon7.4k
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ath1121501 and GO
... Hi all, I need to extract information from the library ath1121501. I would like to obtain a list to have a correspondance between GO terms and the gene names. The list should be such that the names of the list are the gene names (AT4G19650" ,"AT5G47010", etc...) and each member of the list contain ...
go ath1121501 written 13.0 years ago by Martin Olivier70 • updated 13.0 years ago by James W. MacDonald51k
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about packages GO, Gostats,...
... Dear all, I have some difficulties to use packages such that GOstats or GO... So, I have two questions...(I tried to find the solutions in the mailing list but I don't find them...)...Maybe, there are trivial solutions... First, how I can find all the different GO category associated with a locu ...
go gostats category written 13.1 years ago by Martin Olivier70 • updated 13.1 years ago by James W. MacDonald51k
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GOstats and library ath1121501
... Hello, I don't know very well the bioconductor packages, but I try to use some of them to analyse some data. More precisely, I try to use the function GOHyperg from package GOstats for Arabidopsis data. For the function GOhyperG, there is an example with the hgu95av2 package (human genome) and I w ...
ath1121501 hgu95av2 gostats written 13.1 years ago by Martin Olivier70 • updated 13.1 years ago by Seth Falcon7.4k
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fixed and random effect
... Hi all, In previous works (1999 or 2000), Kerr and Churchill (and others) have proposed different models with fixed effects to analyze microarray data and to detect differentially expressed genes. For this, they consider the Gene effect G and the Variety effect (or treatement effect) V as fixed eff ...
written 15.6 years ago by Martin Olivier70
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proteomics data analysis
... Hi all, The adoption of proteomics approaches (based on two dimensional gels or others means) into biological research is increasing and give important data sets. Distilling biological signifiance from these data sets remain a challenge (a challenge shared by gene expression analysis). So, I would ...
proteomics written 16.2 years ago by Martin Olivier70

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