跳到正文
cccskills
免费在 GitHub 公开

bioconductor-nanotube

NanoTube includes functions for the processing, quality control, analysis, and visualization of NanoString nCounter data. Analysis functions include differential analysis and gene set analysis methods, as well as postprocessing steps to help understand the results. Additional functions are included to enable interoperability with other Bioconductor NanoString data analysis packages.

中文简介正在准备中。当前显示原文说明。

查看安装方法

包含的文件(1)

  • SKILL.md3.8 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

NanoTube

Workflows

Standard Workflow

library(NanoTube)

# Process and normalize NanoString data
dat <- processNanostringData(
  nsFiles = example_data,
  sampleTab = sample_info,
  idCol = "RCC_Name",
  groupCol = "Sample_Diagnosis",
  normalization = "nSolver"
)

# Run differential expression analysis using Limma
limmaResults <- runLimmaAnalysis(dat, base.group = "None")

# Generate volcano plot of differential expression results
deVolcano(limmaResults, plotContrast = "Autoimmune.retinopathy")

# Run gene set enrichment analysis
fgseaResults <- limmaToFGSEA(limmaResults, gene.sets = ExamplePathways)

Input: RCC files or tabular expression data, sample metadata. Output: Normalized ExpressionSet, differential expression statistics, volcano plots, and GSEA results.

When to Use

  • Processing, quality control, and normalization of NanoString nCounter data (RCC files or tabular counts) using processNanostringData.
  • Performing differential expression analysis on NanoString data using runLimmaAnalysis.
  • Performing Gene Set Enrichment Analysis (GSEA) directly from differential expression results using limmaToFGSEA or nsdiffToFGSEA.
  • Visualizing NanoString data quality using positiveQC, negativeQC, nanostringPCA, or RLE plots.

When NOT to Use

  • For high-throughput RNA-seq data, use standard pipelines like DESeq2 or edgeR.
  • For microarray data, use limma directly.

Data Requirements

  • Raw NanoString RCC files or a CSV/TXT expression matrix.
  • A sample metadata CSV file containing sample characteristics and matching file names.

Key Parameters

  • normalization ("nSolver"): Normalization method in processNanostringData ("nSolver", "RUVIII", "RUVg", or "none").
  • bgType ("threshold"): Method for background assessment ("threshold" or "t.test").
  • bgPVal (0.01): P-value threshold for the t-test background method.
  • skip.housekeeping (FALSE): Whether to skip housekeeping normalization.
  • n.unwanted (1): Number of dimensions of unwanted variation to remove in RUVg/RUVIII.
  • base.group (NULL): Control group for contrast in runLimmaAnalysis.

Best Practices

  • Perform quality control checks on positive controls using positiveQC and negative controls using negativeQC before downstream analysis.
  • Verify that positive scaling factors are between 0.3 and 3, and R-squared values are greater than 0.95.
  • Check housekeeping normalization scale factors to ensure they are within the recommended 0.1-10 range.

Common Pitfalls

  • Mismatched sample names between RCC files and the sample metadata table; specify idCol in processNanostringData to ensure correct merging.
  • Including empty factor levels in the design matrix; drop them using droplevels() before analysis.

Alternatives

  • NanoStringDiff for differential analysis using a generalized linear model.
  • limma for general linear modeling.
  • RUVSeq for removing unwanted variation.

Citations

  • Lundy et al. 2018 (referenced in vignette)
  • Ritchie et al. 2015 (limma reference)

References

评价

还没有评价。欢迎分享你的使用感受。

评论

无需登录即可发表。欢迎分享使用感受、提问,或说明在哪些环境下无法运行。

还没有评论。来写第一条吧。

提交后会立即公开。请勿填写邮箱、电话等个人信息。URL 最多 2 个。

0 / 1000 字

此表单受 reCAPTCHA 保护,适用 Google 的隐私权政策和服务条款。

同一仓库的技能

The package contains functions for exploratory oligonucleotide array analysis. The dependence on tkWidgets only concerns few convenience functions. 'affy' is fully functional without it.

中文简介正在准备中。当前显示原文说明。

bioMate-AI/biomate-bioconductor-kb7972026年6月21日 更新

This tool uses the label-tree function from HyPhy to annotate a phylogenetic tree. It allows users to select a subset of leaves using either a regular expression or a list of sequence names, and then apply a specified label to these selecte

中文简介正在准备中。当前显示原文说明。

bioMate-AI/biomate-bioconductor-kb7972026年6月21日 更新

This package provides a client for the Bioconductor AnnotationHub web resource. The AnnotationHub web resource provides a central location where genomic files (e.g., VCF, bed, wig) and other resources from standard locations (e.g., UCSC, En

中文简介正在准备中。当前显示原文说明。

bioMate-AI/biomate-bioconductor-kb7972026年6月21日 更新

apeglm provides Bayesian shrinkage estimators for effect sizes for a variety of GLM models, using approximation of the posterior for individual coefficients.

中文简介正在准备中。当前显示原文说明。

bioMate-AI/biomate-bioconductor-kb7972026年6月21日 更新

ASURAT is a software for single-cell data analysis. Using ASURAT, one can simultaneously perform unsupervised clustering and biological interpretation in terms of cell type, disease, biological process, and signaling pathway activity. Inputting a single-cell RNA-seq data and knowledge-based databases, such as Cell Ontology, Gene Ontology, KEGG, etc., ASURAT transforms gene expression tables into original multivariate tables, termed sign-by-sample matrices (SSMs).

中文简介正在准备中。当前显示原文说明。

bioMate-AI/biomate-bioconductor-kb7972026年6月21日 更新

AUCell allows to identify cells with active gene sets (e.g. signatures, gene modules...) in single-cell RNA-seq data. AUCell uses the "Area Under the Curve" (AUC) to calculate whether a critical subset of the input gene set is enriched with

中文简介正在准备中。当前显示原文说明。

bioMate-AI/biomate-bioconductor-kb7972026年6月21日 更新

查看 bioMate-AI 的全部技能

报告此技能的问题