Hello, I am working on a task concerning nested procedures. The input is as follows: data experiment; input lot wafer site rho; cards; 1 1 1 4.289 ... run; Then I use the following commands: proc print; run; proc sort; by lot wafer site; run; proc nested; class lot wafer site; var rho; run; As output, I get the 'Nested random effects analysis of variance for variable rho'. But the output shows some dots, for example: Variance source Site: There is a dot in the column of 'random sum of squares' in 'F value' and in 'Pr>F'. Also in variance source Error, there are only dots or zeros. Can anyone tell me why these dots are there?? And how I can get them away? => How can I solve this problem? Thanks in advance and best regards, Richard
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