Research Articles
Kaiser-Guttman vs. Scree Test: A Practical Guide for Dimensionality in RNA-Seq Analysis
This article provides a comprehensive guide for researchers and drug development professionals on applying and evaluating the Kaiser-Guttman criterion and the Scree test for dimensionality assessment in RNA-Seq analysis.
Optimizing High-Dimensional Covariance Estimation for Robust Gene Expression Analysis in Biomedical Research
Accurate covariance matrix estimation is fundamental for analyzing high-dimensional gene expression data, enabling critical tasks in drug discovery and disease research such as co-expression network analysis, module identification, and biomarker...
Beyond Noise: A Strategic Guide to Handling Outliers in Gene Expression PCA Analysis
Principal Component Analysis (PCA) is a cornerstone of gene expression data exploration, but outliers can severely skew results and lead to flawed biological interpretations.
Beyond Linearity: A Comprehensive Guide to Addressing Non-Linearity in Gene Expression PCA
Principal Component Analysis (PCA) is a cornerstone of genomic data exploration, but its reliance on linear assumptions often fails to capture the complex, non-linear relationships inherent in gene expression data.
Why Your PCA Clusters Aren't Separating: A Biomedical Researcher's Guide to Diagnosis and Solutions
This guide provides a comprehensive framework for researchers and drug development professionals struggling with poor cluster separation in PCA plots.
Correcting for Sequencing Depth Bias in PCA: A Practical Guide for Genomic Researchers
Principal Component Analysis (PCA) is a cornerstone of genomic data exploration, but its results can be severely biased by uneven sequencing depth across samples.
Mastering Heteroskedasticity in RNA-seq PCA: A Comprehensive Guide for Biomedical Researchers
This article provides a comprehensive framework for addressing heteroskedasticity in RNA-seq data analysis, particularly when using Principal Component Analysis (PCA).
Beyond Basic PCA: A Practical Guide to Varimax Rotation for Clearer Results in Biomedical Research
This article provides a comprehensive guide for researchers and drug development professionals on using Varimax rotation to enhance the interpretability of Principal Component Analysis (PCA).
Navigating the Gap: A Comprehensive Guide to Handling Missing Data in Gene Expression PCA
This article provides a definitive guide for researchers and bioinformaticians on managing missing data in gene expression datasets for Principal Component Analysis (PCA).
A Researcher's Guide to Batch Effects in Gene Expression PCA: From Detection to Correction and Validation
This article provides a comprehensive guide for researchers and drug development professionals on addressing batch effects in Principal Component Analysis (PCA) of gene expression data.