WallyFit – Smart Control

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This is a visualization tool for data analysis and mathematics teaching. Users simply input two sets of numerical data, and the system automatically draws a scatter plot, fits a trend line, and calculates the Pearson correlation coefficient (r) and correlation strength. Graphs can be exported as images, making them suitable for use in reports or teaching demonstrations. A built-in history record function facilitates review and re-analysis. Its simple and intuitive interface makes it suitable for a variety of scenarios, including statistical learning, experimental data analysis, and classroom presentations, making it a practical aid for understanding the relationships between variables.