Example 1 for PROC NESTED
/******************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: NESTEX1 */
/* TITLE: Example 1 for PROC NESTED */
/* Variability of Calcium Concentration in Turnip Greens */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: Variability */
/* PROCS: NESTED */
/* DATA: */
/* */
/* SUPPORT: Tianlin Wang */
/* REF: PROC NESTED, EXAMPLE 1. */
/* MISC: */
/******************************************************************/
title 'Calcium Concentration in Turnip Leaves--Nested Random Model';
title2 'Snedecor and Cochran, ''Statistical Methods'', 1967, p. 286';
data Turnip;
do Plant=1 to 4;
do Leaf=1 to 3;
do Sample=1 to 2;
input Calcium @@;
output;
end;
end;
end;
datalines;
3.28 3.09 3.52 3.48 2.88 2.80 2.46 2.44
1.87 1.92 2.19 2.19 2.77 2.66 3.74 3.44
2.55 2.55 3.78 3.87 4.07 4.12 3.31 3.31
;
proc nested data=Turnip;
class plant leaf;
var calcium;
run;