这篇文章主要介绍“OTUtable标准化方法是什么”,在日常操作中,相信很多人在OTUtable标准化方法是什么问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”OTUtable标准化方法是什么”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
OTUtable标准方法
1.抽平方法:
single_rarefaction.py -i pick_de_novo_otus/otu_table_clean.biom -o pick_de_novo_otus/otu_table_clean_rare.biom -d 2032
2.css方法或者deseq2方法
normalize_table.py -i otu_table_clean.biom -a CSS -o otu_table_clean_css.biom normalize_table.py -i otu_table_clean.biom -a DESeq2 -z -o otu_table_clean_deseq2_norm_no_negatives.biom
标准化之后数据处理:
############################################################################### #对OTU丰度进行标准化CSS方法 :https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4010126/ http://qiime.org/scripts/normalize_table.html mkdir normalized_otu_css/ normalize_table.py -i $workdir/5.pick_otu/pick_de_novo_otus/otu_table_clean.biom -a CSS -o normalized_otu_css/CSS_normalized_otu_table.biom biom convert -i normalized_otu_css/CSS_normalized_otu_table.biom -o normalized_otu_css/CSS_normalized_otu_table1.txt --to-tsv --header-key taxonomy #去掉只有界注释的OTU grep -v 'k; _; _; B; a; c; t; e; r; i; a' normalized_otu_css/CSS_normalized_otu_table1.txt >normalized_otu_css/CSS_normalized_otu_table.txt #注意biom格式转变 json to hdf5 :https://www.亿速云.com/article/1314 biom convert -i normalized_otu_css/CSS_normalized_otu_table.txt -o normalized_otu_css/CSS_normalized_otu_table_hdf5.biom --table-type="OTU table" --to-hdf5 --process-obs-metadata taxonomy biom summarize-table -i normalized_otu_css/CSS_normalized_otu_table_hdf5.biom -o normalized_otu_css/CSS_normalized_otu_table_summary.txt #对OTU丰度进行标准化 相对丰度 echo Summarize taxa echo summarize_taxa:level 2,3,4,5,6,7 >taxa_summary_parm.txt echo plot_taxa_summary:x_width 8 >>taxa_summary_parm.txt echo plot_taxa_summary:bar_width 0.5 >>taxa_summary_parm.txt echo plot_taxa_summary:chart_type bar >>taxa_summary_parm.txt summarize_taxa.py -i normalized_otu_css/CSS_normalized_otu_table_hdf5.biom -o normalized_otu_css/absolute_abundance -a --level 2,3,4,5,6,7 summarize_taxa.py -i normalized_otu_css/CSS_normalized_otu_table_hdf5.biom -o normalized_otu_css/relative_abundance --level 2,3,4,5,6,7 mkdir normalized_otu_css/group_otus_css for i in city loc country;do collapse_samples.py -b normalized_otu_css/CSS_normalized_otu_table_hdf5.biom -m $fastmap --collapse_fields $i --output_mapping_fp normalized_otu_css/group_otus_css/group.$i.txt --output_biom_fp normalized_otu_css/group_otus_css/otu_table_$i.biom biom convert -i normalized_otu_css/group_otus_css/otu_table_$i.biom -o normalized_otu_css/group_otus_css/otu_table_${i}.txt --to-tsv --header-key taxonomy summarize_taxa.py -i normalized_otu_css/group_otus_css/otu_table_$i.biom -o normalized_otu_css/group_otus_css/taxa_summary_relative.${i} -L 2,3,4,5,6,7 summarize_taxa.py -i normalized_otu_css/group_otus_css/otu_table_$i.biom -o normalized_otu_css/group_otus_css/taxa_summary_absolute.${i} -a -L 2,3,4,5,6,7 done
到此,关于“OTUtable标准化方法是什么”的学习就结束了,希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习,快去试试吧!若想继续学习更多相关知识,请继续关注亿速云网站,小编会继续努力为大家带来更多实用的文章!
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