anscombe_nonlinear: Anscombe's Quartet Nonlinear Data
In quartets: Datasets to Help Teach Statistics
anscombe_nonlinear R Documentation
Anscombe's Quartet Nonlinear Data
Description
This dataset contains 11 observations generated by Francis Anscombe to
demonstrate that statistical summary measures alone cannot capture the full
relationship between two variables (here, x and y). Anscombe emphasized
the importance of visualizing data prior to calculating summary statistics.
Usage
anscombe_nonlinear
Format
A dataframe with 11 rows and 2 variables:
-
x: the x-variable
-
y: the y-variable
Details
This Dataset has a nonlinear relationship between x and y
Additionally, the following statistical summaries hold:
mean of x: 9
variance of x: 11
mean of y: 7.5
variance of y: 4.125
correlation between x and y: 0.816
linear regression between x and y: y = 3 + 0.5x
-
R^2 for the regression: 0.67
References
Anscombe, F. J. (1973). "Graphs in Statistical Analysis".
American Statistician. 27 (1): 17–21. doi:10.1080/00031305.1973.10478966.
JSTOR 2682899.
quartets documentation built on April 14, 2023, 12:25 a.m.
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| anscombe_nonlinear | R Documentation |
Anscombe's Quartet Nonlinear Data
Description
This dataset contains 11 observations generated by Francis Anscombe to
demonstrate that statistical summary measures alone cannot capture the full
relationship between two variables (here, x and y). Anscombe emphasized
the importance of visualizing data prior to calculating summary statistics.
Usage
anscombe_nonlinear
Format
A dataframe with 11 rows and 2 variables:
-
x: the x-variable -
y: the y-variable
Details
This Dataset has a nonlinear relationship between x and y
Additionally, the following statistical summaries hold:
mean of
x: 9variance of
x: 11mean of
y: 7.5variance of y: 4.125
correlation between
xandy: 0.816linear regression between
xandy:y = 3 + 0.5x-
R^2for the regression: 0.67
References
Anscombe, F. J. (1973). "Graphs in Statistical Analysis". American Statistician. 27 (1): 17–21. doi:10.1080/00031305.1973.10478966. JSTOR 2682899.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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