Data Visualization

Paste an order or event CSV and get the growth stack in one page: a cohort retention triangle with a heatmap, RFM quintile scoring mapped to the ten standard lifecycle segments, and a strict-order funnel.

Data Visualization

See the Central Limit Theorem in action: draw samples from a non-normal source distribution (uniform, exponential, Poisson, or Bernoulli), plot the histogram of sample means, and overlay the predicted Normal curve N(μ, σ²/n). Compare empirical vs theoretical mean and standard error, and watch convergence tighten as the sample size grows.

Data Visualization

Generate GitHub-style calendar heatmaps to visualize activity patterns over time, perfect for tracking yearly contributions, habits, or metrics

Data Visualization

Generate interactive chord diagrams for visualizing bidirectional flows and relationships between entities

Data Visualization

目标vs实际对比图表，包含目标线、实际值、比较范围

Data Visualization

Generate customizable bar charts from data with various styling options

Data Visualization

Generate customizable bubble charts from data with three dimensions (x, y, size)

Data Visualization

Generate back-to-back bar charts for positive and negative value comparison, perfect for contrasting data sets

Data Visualization

Generate customizable area charts from data with filled areas under lines, perfect for showing trends and cumulative data

Data Visualization

Generate box plots for statistical distribution analysis with quartiles, whiskers, and outliers