图表的重要性:Anscombe的四组数据 1973年,统计学家F.J. Anscombe构造出了四组奇特的数据。它告诉人们,在分析数据之前,描绘数据所对应的图像有多么的重要。 Anscombe’s Quartet 这四组数据中,x值的平均数都是9.0,y值的平均数都是7.5;x值的方差都是10.0,y值的方差都是3.75;它们的相关度都是0.816,线性回归线...
sns.set(style="ticks")#Load the example dataset for Anscombe's quartetdf = sns.load_dataset("anscombe")#Show the results of a linear regression within each datasetsns.lmplot(x="x", y="y", col="dataset", hue="dataset", data=df, col_wrap=2, ci=None, palette="muted", size=4, s...
""" Edward Tufte uses this example from Anscombe to show 4 datasets of x and y that have the same mean, standard deviation, and regression line, but which are qualitatively different. matplotlib fun for a rainy day """importmatplotlib.pyplotaspltimportnumpyasnp x = np.array([10,8,13,9...
Carlos VergaraHernández
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The theoretical underpinning of this presentation is based on a hypothetical expansion of Anscombe's Quartet from a two dimensional construct to a three dimensional one. Anscombe's Quartet was developed in 1973 by the statistician Francis Anscombe to demonstrate how datasets can be extremely ...
We look at Anscombe's, (Am Stat 27(1):17–21, 1973) data which is one of the datasets that come with the R software. We compute different linear regressions of Anscombe's four sets of data—they give us the same results. When we look at the scatterplots corresponding to Anscombe's...
Revell, L. J., Schliep, K., Valderrama, E., & Richardson, J. E. (2018). Data from: Graphs in phylogenetic comparative analysis: Anscombe's quartet revisited. Dryad Digital Repository, https://doi.org/10.5061/ dryad.11340t4Revell, L.J.; Schliep, K.; Valderrama, E.; Richardson, J....
K., K. L. B. AdikaramM., A. HusseinM., EffenbergerT., Becker