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nf-core/demo

GitHub Actions CI Status GitHub Actions Linting StatusAWS CICite with Zenodo nf-test

Nextflow run with conda run with docker run with singularity Launch on Seqera Platform

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Introduction

nf-core/demo is a simple nf-core style bioinformatics pipeline for workshops and demonstrations. It was created using the nf-core template and is designed to run quickly using small test data files.

nf-core/demo metro map

  1. Read QC (FASTQC)
  2. Adapter and quality trimming (SEQTK_TRIM)
  3. Present QC for raw reads (MULTIQC)

Usage

Note

If you are new to Nextflow and nf-core, please refer to this page on how to set-up Nextflow. Make sure to test your setup with -profile test before running the workflow on actual data.

First, prepare a samplesheet with your input data that looks as follows:

samplesheet.csv:

sample,fastq_1,fastq_2
SAMPLE1_PE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample1_R1.fastq.gz,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample1_R2.fastq.gz
SAMPLE2_PE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample2_R1.fastq.gz,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample2_R2.fastq.gz
SAMPLE3_SE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample1_R1.fastq.gz,
SAMPLE3_SE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample2_R1.fastq.gz,

Each row represents a fastq file (single-end) or a pair of fastq files (paired end).

Now, you can run the pipeline using:

nextflow run nf-core/demo \
   -profile <docker/singularity/.../institute> \
   --input samplesheet.csv \
   --outdir <OUTDIR>

Warning

Please provide pipeline parameters via the CLI or Nextflow -params-file option. Custom config files including those provided by the -c Nextflow option can be used to provide any configuration except for parameters; see docs.

For more details and further functionality, please refer to the usage documentation and the parameter documentation.

Pipeline output

To see the results of an example test run with a full size dataset refer to the results tab on the nf-core website pipeline page. For more details about the output files and reports, please refer to the output documentation.

Credits

nf-core/demo was originally written by Chris Hakkaart (@christopher-hakkaart).

Contributions and Support

If you would like to contribute to this pipeline, please see the contributing guidelines.

For further information or help, don't hesitate to get in touch on the Slack #demo channel (you can join with this invite).

Citations

If you use nf-core/demo for your analysis, please cite it using the following doi: 10.5281/zenodo.12192442

An extensive list of references for the tools used by the pipeline can be found in the CITATIONS.md file.

You can cite the nf-core publication as follows:

The nf-core framework for community-curated bioinformatics pipelines.

Philip Ewels, Alexander Peltzer, Sven Fillinger, Harshil Patel, Johannes Alneberg, Andreas Wilm, Maxime Ulysse Garcia, Paolo Di Tommaso & Sven Nahnsen.

Nat Biotechnol. 2020 Feb 13. doi: 10.1038/s41587-020-0439-x.