User: Alberto Goldoni

gravatar for Alberto Goldoni
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Posts by Alberto Goldoni

<prev • 42 results • page 1 of 5 • next >
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Comment: C: Reading 5000 celfiles with ReadAffy
... great!!!! 100.000 not on a regular machine... 2012/2/22 Henrik Bengtsson > I bet a dinner w/ drinks that aroma.affymetrix can process 20,000 such > CEL files on regular machine (say >2GB of RAM). The bet is open to > the first 3 persons who challenge me (email me). I would be happy ...
written 7.8 years ago by Alberto Goldoni420
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comparison between two toptable
... Dear all, i have problem in comparing two toptable toptable A data<-ReadAffy(widget=T) data.rma<-rma(data) design <- cbind(WT=c(0,0,1,1),MU=c(1,1,0,0)) colnames(design) <- c("WT","MU") fit <- lmFit(data.rma, design) cont.matrix <- makeContrasts(MUvsWT=MU-WT, levels=design) cont. ...
written 8.0 years ago by Alberto Goldoni420
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Comment: C: help to proceed with the interpretation of an analysis
... Thank you Sean, but i guess that the hypothesys is a little bit different. i would obtain 1000 genes from the first comparisono and then i would like to know which is the FC of the previous 1000 genes in the second comparison and then a value in order to compare the two different FC (the second FC ...
written 8.4 years ago by Alberto Goldoni420
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Comment: C: help to proceed with the interpretation of an analysis
... Dear Samuel, i have affymetrix rattus norvegius chip. i have found 1000 interesting genes in the comparison 1 between "hypertensive rats (A)" vs "standard rats (B)" and i would like to understand the behaviour of these 1000 genes in the comparison 2 "hypertensive rats+omega3 (C)" vs "standard rats ...
written 8.4 years ago by Alberto Goldoni420
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help to proceed with the interpretation of an analysis
... Dear all, i have a doubt on the way to proceed in analyzing my data. Let me explain what i would like to obtain: i have 1000 genes obtained from the comparison 1 (A vs B) and i would like to obtain the Fold Change and pvalue of this 1000 genes in the comparison 2 (C vs B). After that what i'm gonn ...
written 8.4 years ago by Alberto Goldoni420 • updated 8.4 years ago by Samuel Wuest330
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info on vennCounts function
... Dear all, i have a question on the "vennCounts" function. Using this function on "results" value: > vennCounts(results) [hda+str]-[ref] [ref+str]-[ref] [hda+str]-[ref+str] Counts [1,] 0 0 0 21496 [2,] 0 0 ...
written 8.5 years ago by Alberto Goldoni420 • updated 8.5 years ago by James W. MacDonald52k
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Answer: A: problem with rat database
... Dear All, i'm working with a agilent rat microarry, what i would to know if there is a script or a package that starting from the GeneName "CB606456" it gives to me the Genomic location(strand) for example chr 7:16261621-16262210 as you can do pasting the GeneName "CB606456" to the ensamble databas ...
written 8.5 years ago by Alberto Goldoni420
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packege for presence of motifs or protein domains
... Dear all, i would like to know if with R is possible to analyze the presence of motifs or protein domains? I would need a package that, for a given protein sequence, it will look for the presence of protein domains. for example I tried ITIM motifs (I / V / L / SxYxxL / V). Do you know something? ...
written 8.6 years ago by Alberto Goldoni420
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Comment: C: problem with rat database
... Very clear. Thanks Marc. 2011/5/10 Marc Carlson : > Hi Alberto, > > So the way that the annotation packages work is that they take a probe to > gene mapping from a manufacturer and then return to you the relevant gene > information that is associated with the gene that is mapped to ...
written 8.6 years ago by Alberto Goldoni420
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Comment: C: problem with rat database
... @Davis You are right! But i have tryed to perform this kind of search: library("rgug4130a.db") x <- rgug4130aENSEMBL mapped_genes <- mappedkeys(x) xx <- as.list(x[mapped_genes]) or this approach: x <- rgug4130aGENENAME mapped_probes <- mappedkeys(x) xx <- as.list(x[mapped_probe ...
written 8.6 years ago by Alberto Goldoni420

Latest awards to Alberto Goldoni

Popular Question 7.8 years ago, created a question with more than 1,000 views. For *** caught segfault *** ....cause 'invalid permissions' with PUMA pachage

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