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About
The regression application plots the price of one product against another, with the points plotted being the respective prices of each product at each point in time in the duration selected.
Regression analysis can be used to study whether the movements of two products are correlated (ie. if they tend to move together or in opposite directions), and measure how responsive the change in price of one product is relative to the other. The line of best fit equation as well as the strength of correlation (both R-squared and adjusted R-squared) are displayed.
(Density of data points is also shown as bar charts along the axes.)
Guide
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Start and end dates dictates the period for analysis.
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Product Pair
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Products (1 and 2) for linear regression.
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Number of days to view latest price movement.
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The words typed here will be displayed at the bottom left of the application. This can be useful for documenting or for settings description.
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模型介绍：
回归分析模型将一种产品的价格与另一种产品的价格进行对比，绘制的点数是在所选持续时间内每个时间点的每种产品的相应价格。 回归分析可用于研究两种产品的走势是否相关（比如它们是否倾向于一起移动或相反方向），并测量一种产品的价格相对于另一种产品的价格变化的响应性。显示最佳拟合方程线以及相关强度（R平方和调整后的R平方）。 数据点的密度也显示为沿轴的条形图。
使用指南：
| 名称 | 图片和描述 |
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起始日 结束日 |
时间序列数据的开始日和结束日 |
数据 |
回归分析相关的产品对，以及其他相关参数。 |
| 天数 |
查看最新天数的价格变动。 |
| 评论 |
用户通过此处输入的评论将显示在产生图形的的左下角 |
案例：
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