Elysia Tools: Tools, Visualizations, and Samples in One Place

Effect Size Calculator

Calculate Cohen d, Hedges g, Cohen h for proportions, or correlation r effect sizes from summary statistics

Math, Date & Finance

One Sample t Test Calculator

Run a one-sample t test from raw data or summary statistics, including p-value and confidence interval

Math, Date & Finance

Statistical Power Calculator

Estimate statistical power for one-sample mean or proportion tests using sample size, alpha, and expected effect

Math, Date & Finance

F Distribution Calculator

Calculate F distribution density, cumulative probability, and right-tail probability from numerator and denominator degrees of freedom

Math, Date & Finance

Margin of Error Calculator

Calculate the margin of error for a mean or proportion from sample size, confidence level, and variability

Math, Date & Finance

P Value Calculator

Calculate one-tailed or two-tailed p-values for Z, t, chi-square, and F test statistics

Math, Date & Finance

Chi-Square Distribution Calculator

Calculate chi-square distribution PDF, CDF, and right-tail probability from a statistic and degrees of freedom

Math, Date & Finance

Exponential Distribution Calculator

Calculate PDF, CDF, survival probability, and interval probability for an exponential distribution

Math, Date & Finance

Voter Model — Opinion Dynamics & Phase Transitions

Interactive voter model simulation: explore opinion polarization, consensus formation, and critical phase transitions

Taylor Diagram

Interactive Taylor Diagram for evaluating model performance by combining correlation, standard deviation, and RMSE in polar coordinates

Evolutionary Game Theory Simulator

Interactive simulation of evolutionary game dynamics with spatial structure, mutation, and selection

Quantum Wave Function Collapse

Interactive visualization of quantum superposition, time evolution, and wave function measurement collapse in various potential wells

Compound Interest & Exponential Growth

Interactive visualization of compound interest, the Rule of 72, and the surprising power of exponential growth

Baumol's Cost Disease

Interactive two-sector model of unbalanced growth — why services keep getting more expensive while goods get cheaper

El Farol Minority Game

Interactive simulation of bounded rationality and inductive reasoning — the El Farol Bar Problem by W. Brian Arthur (1994)

Mechanical Wave Generation

Interactive exploration of how mechanical waves are generated and propagated

Time Zone Workflow Scheduler ICS Samples

ICS files generated in the same structure returned by the Time Zone Workflow Scheduler, with multiple VEVENT meeting candidates exported from overlap windows

3 samples

Terraform Plan JSON Samples

Sample Terraform plan JSON files exported from terraform show -json style payloads for dependency visualization and change review

3 samples

ICS Calendar Samples

Sample iCalendar (.ics) files for testing calendar import, event parsing, reminders, and recurring schedules

3 samples

PCAP Capture Samples

Downloadable PCAP capture files from simple to complex for protocol inspection, parser testing, and packet-analysis demos

3 samples

PCAPNG Capture Samples

Downloadable PCAPNG capture files from simple to complex for parser validation, format comparison, and network-analysis walkthroughs

3 samples

Length Distance Samples

Educational length and distance reference samples covering metric and imperial units, everyday comparisons, and conversion literacy

3 samples

ASS Subtitle Samples

Sample ASS subtitle files from simple to complex for style-aware subtitle parsing, translation, conversion, and localization QA

3 samples

SRT Subtitle Samples

Sample SRT subtitle files from simple to complex for testing import, translation, conversion, and timing-preservation workflows

3 samples