Line-Fit
Straight Line Regression Fit
免費
2.0for iPhone, iPad and more
Age Rating
Line-Fit 螢幕截圖
About Line-Fit
The Line-Fit app uses linear regression to model the relationship between two variables (x and y) by fitting a linear equation to observed data. One variable is considered to be an explanatory (independent) variable, and the other is considered to be a response (dependent) variable.
A linear regression line has an equation of the form Y = a + bX, where X is the explanatory variable and Y is the dependent variable. The slope of the line is b, and the intercept is a (the value of y when x = 0).
To measure the association between the two variables the correlation coefficient is used, which is a value between -1 and 1 indicating the strength of the association of the observed data for the two variables.
The coefficient of determination, R2, measures how close the data are to the fitted regression line. In general, higher values of R2 indicate a better fit of the model to the given data. R2 is always positive and equal to 1.0 for a perfect fit.
A linear regression line has an equation of the form Y = a + bX, where X is the explanatory variable and Y is the dependent variable. The slope of the line is b, and the intercept is a (the value of y when x = 0).
To measure the association between the two variables the correlation coefficient is used, which is a value between -1 and 1 indicating the strength of the association of the observed data for the two variables.
The coefficient of determination, R2, measures how close the data are to the fitted regression line. In general, higher values of R2 indicate a better fit of the model to the given data. R2 is always positive and equal to 1.0 for a perfect fit.
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最新版本2.0更新日誌
Last updated on 2020年11月15日
歷史版本
Upgraded to SDK 13
Minor bug-fixes
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme to work in Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
Minor bug-fixes
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme to work in Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
Show More
Version History
2.0
2020年11月15日
Upgraded to SDK 13
Minor bug-fixes
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme to work in Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
Minor bug-fixes
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme to work in Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
1.0
2019年06月14日
Line-Fit FAQ
點擊此處瞭解如何在受限國家或地區下載Line-Fit。
以下為Line-Fit的最低配置要求。
iPhone
須使用 iOS 12.3 或以上版本。
iPad
須使用 iPadOS 12.3 或以上版本。
iPod touch
須使用 iOS 12.3 或以上版本。
Line-Fit支持英文