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<!DOCTYPE gretldata SYSTEM "gretldata.dtd">
<gretldata name="anscombe" frequency="1" startobs="1" endobs="11" type="cross-section">
<description>
The data for "Anscombe's quartet"
F. J. Anscombe, "Graphs in Statistical Analysis",
American Statistician, 27 (February 1973), pp. 17-21</description>
<variables count="6">
<variable name="x"
label="x-axis variable for use with y1, y2, y3"
/>
<variable name="y1"
label=""random" y variable"
/>
<variable name="y2"
label="nonlinear y variable"
/>
<variable name="y3"
label="linear plus outlier"
/>
<variable name="x4"
label="x-axis variable for use with y4"
/>
<variable name="y4"
label=""chord" plus outlier"
/>
</variables>
<observations count="11" labels="false">
<obs>10 8.04 9.14 7.46 8 6.58 </obs>
<obs>8 6.95 8.14 6.77 8 5.76 </obs>
<obs>13 7.58 8.74 12.74 8 7.71 </obs>
<obs>9 8.81 8.77 7.11 8 8.84 </obs>
<obs>11 8.33 9.26 7.81 8 8.47 </obs>
<obs>14 9.96 8.10 8.84 8 7.04 </obs>
<obs>6 7.24 6.13 6.08 8 5.25 </obs>
<obs>4 4.26 3.10 5.39 19 12.50 </obs>
<obs>12 10.84 9.13 8.15 8 5.56 </obs>
<obs>7 4.82 7.26 6.42 8 7.91 </obs>
<obs>5 5.68 4.74 5.73 8 6.89 </obs>
</observations>
</gretldata>
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