Question: From genotype raw data .idat to PLINK files
gravatar for Armand
4.4 years ago by
Armand20 wrote:

Dear all,

I have several raw data (exome genotyping) :   *_Red.idat   *_Grn.idat 

.. and also the illumina data mapping, a file with this columns :

"Family ID","Individual ID","Sample ID","Genotyping Chip Barcode","Genotyping Chip Type","Final Report Name","Sex","Study Role","Birth Year Month"


(where Genotyping Chip Barcode is something like "4252475888_A" and Genotyping Chip Type like "1M-Duov3")

I have different platforms, but now I am focused the data from 1M-Duov3)

I would like to generate the PLINK file. I am using the crlmm R package in order to try to get, at least, the .ped plink genotype file. I am figuring out how to launch successfully genotype.Illumina function.

I am following :

cnSet <- genotype.Illumina(sampleSheet=samplesheet_subset,
                             batch=rep("1", nrow(samplesheet_subset)))

     It seems that cdfName according to 1M-Duov3 should be "human1mduov3b".

     samplesheet_subset a subset data.frame illumina data mapping file with a subset of .idat files. (I am using 38           samples -parents, probands, sibiling, ..)

     arrayNames I don't know what it reefers to... (I try to pass the different sample ID  samplesheet_subset$Sample.ID)

     batch following the example ... (the number of rows of samplesheet_subset)

When I launch, I got this error :


Instantiate CNSet container.
Error en constructInf(sampleSheet = sampleSheet, arrayNames = arrayNames,  : 
  Missing some of the *Grn.idat files


But I think that all the *.idat files are there ...(*_R01C01_Grn.idat, *_R01C02_Grn.idat, *_R01C01_Red.idat,*_R01C02_Red.idat)

[... and I suppose that every .idat file contain variouse samples ..]

Thanks for your help,


sequencing genotype R • 3.4k views
ADD COMMENTlink written 4.4 years ago by Armand20

I encounter the same error.

Have you manage to solve that?

ADD REPLYlink written 2.5 years ago by nadne30
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