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Variant Calling Pipeline

How to use the align pipeline

Step 0:

curl -fsSL get.nextflow.io | bash 

And add NXF_HOME to your .bashrc in case the space in your home directory is restricted:

export NXF_HOME=/path/to/.nextflow

Step1: Run test

The pipeline is preconfigured with test data. INorder to tst whether the pipeline runs through call vc_pipe without command line parameters:


./nextflow run  PlantandFoodResearch/VariantAnalysis/align.nf [--help]

If the pipeline does not run through, look into teh log file:

.nextflow.log

and contact the app steward ([email protected]).

Step 2: Configure file and sample IDs

This is the test data design.config. Adapt to your needs.

sample,file,rep,read,experiment,date,comments
HW1,kiwitest.1.R1.fq.gz,1,R1,kiwitest,2016-01-01,This is crap
HW1,kiwitest.1.R2.fq.gz,1,R2,kiwitest,2016-01-01,This is crap
HW2,kiwitest.2.R1.fq.gz,2,R1,kiwitest,2016-01-01,This is crap
HW2,kiwitest.2.R2.fq.gz,2,R2,kiwitest,2016-01-01,This is crap

Step 3: Run the pipeline

Options:

output_dir: publish directory for results ["./"]
inpu_dir: Directory that contains the raw reads ["$baseDir/KiwiTestData"]
genome: Reference genome file (*.fasta) ["$baseDir/KiwiTestData/kiwitest.fasta"]
config: Location of config file ["$baseDir/design.config"]

$baseDir = $HOME/.nextflow/assets/hdzierz/VariantAnalysisFB

Typical run with the test data copied to $HOME/KiwiTestData

./nextflow run  PlantandFoodResearch/VariantAnalysis/align.nf --input_dir '$HOME/KiwiTestData/' --genome '$HOME/KiwiTestData/kiwitest.fasta'

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A bioinformatic variant calling pipeline

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