Quick Linear Regression
教育
USD 0.99 · 專為 iPad 設計
In statistics, linear regression is a technique for estimating the relationship between an independent variable, X, and its scalar result, the dependent variable, Y, derived from a series of X-Y relationships.
The computational routine involves trying to fit a straight line between a scatter plot of X-Y coordinates such that the sum of the squared differences between each dependent outcome, Yi, and the line computed at each Xi is minimized. This is the so-called "ordinary least squares (OLS)" estimator.
R-squared, often called the "coefficient of determination," expresses the "goodness of fit" of the line to the scatter plot. It ranges from 0, no fit whatever, to 1, which is a perfect relationship where all the points in the plot fit along the straight line.
The iPad version allows you to add, retrieve, reorder, or delete data sets. It also permits emailing, text messaging, and printing of a PDF report. Also, changing the form of the regression equation from Y = function(X) to X = function(Y) is allowed along with estimation of the dependent variable amount from a user-specified independent variable amount.
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- Fixed bug that prevented app output from being shared from the iPad.
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資料
- 供應商
- Michael YOUNG
- 大小
- 3 MB
- 類別
- 教育
- 相容性
須使用 iOS 12.4 或以上版本。
- iPhone
須使用 iOS 12.4 或以上版本。 - iPad
須使用 iPadOS 12.4 或以上版本。 - iPod touch
須使用 iOS 12.4 或以上版本。 - Mac
須使用 macOS 11.0 或以上版本及配備 Apple M1 或以上版本晶片的 Mac。 - Apple Vision
須使用 visionOS 1.0 或以上版本。
- 語言
- 英文
- 年齡分級
4+
- 4+
- 版權
- Copyright © 2011 Michael S. Young
