Compute conversion-rate or mean differences, 95%/99% confidence intervals, two-sided p-values (Z-test for proportions, Welch t for continuous metrics), lift, sample size for 80%/90% power, recommended experiment days, plus sequential-testing and Bonferroni multiple-comparison warnings.

Data Analysis

Correlation Analyzer

Advanced correlation analysis tool that calculates correlation coefficients between variables to measure the strength and direction of their linear relationships. Perfect for statistical analysis, financial modeling, scientific research, and data exploration. Features: - Multiple correlation methods (Pearson, Spearman, Kendall) - Correlation matrix generation - Statistical significance testing (p-values) - Confidence intervals calculation - Heatmap visualization - Scatter plot matrix generation - Missing value handling strategies - Outlier detection and handling - Group analysis capabilities - Detailed statistical reports Common Use Cases: - Financial market analysis and risk assessment - Scientific research and hypothesis testing - Customer behavior and marketing analysis - Healthcare and medical data analysis - Quality control and process optimization - Educational performance evaluation

Data Processing

AI Data Normalizer

AI-powered data format normalization tool that intelligently cleans and standardizes messy data using advanced AI analysis

Data Analysis

Confidence Interval Calculator

Calculate confidence intervals for population means using Z or T distributions

Data Processing

Chunk Array

Split array into chunks of specified size using lodash _.chunk

Data Processing

Compact Array

Remove falsey values from array using lodash _.compact

Data Processing

Column Calculator

Perform calculations on columns and add new rows

Data Processing

Column Remover

Remove specified columns from table data

Data Processing

Column Renamer

Rename column headers in CSV and table data with preview and validation

Data Processing

Column Reorder

Reorder table columns without changing the data rows

Data Processing

Xor Arrays

Compute the symmetric difference of arrays using lodash _.xor

Data Processing

XML Path Extractor

Extract values from XML documents using XPath expressions. Perfect for extracting specific data from complex nested XML structures, API responses, RSS feeds, and configuration files.