Usage Arguments Value Examples
| 1 | precision(x,se,digits=0)
 | 
| x | numeric vector | 
| se | standard error(s) of value(s). | 
| digits | one less than the number of extra digits | 
value(s) rounded off to precision of 2 standard errors plus
(digits+1) extra digit.
| 1 | precision(75.111,.12)
 | 
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