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INTERVALS Statement |
The following entries provide detailed descriptions of options in the INTERVALS statement.
proc capability data=steel; intervals width / alpha = 0.05 0.10 0.15 0.20; run;Note that some references use to denote probability or confidence levels. Values for the ALPHA= option must be between 0.00001 to 0.99999. By default, values of 0.01, 0.05, and 0.10 are used.
Index | Statistical Interval |
1 | approximate simultaneous prediction interval for k future observations |
2 | prediction interval for the mean of k future observations |
3 | approximate statistical tolerance interval that contains at least proportion p of the population |
4 | confidence interval for the population mean |
5 | prediction interval for the standard deviation of k future observations |
6 | confidence interval for the population standard deviation |
proc capability data=steel; intervals width / methods=4 6; run;
proc capability data=steel; intervals width / outintervals=ints; run;See "OUTINTERVALS= Data Set" for details.
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