R Under development (unstable) (2025-08-17 r88631 ucrt) -- "Unsuffered Consequences"
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> # predict.R --- Test function predict
> 
> library(usl)
> 
> options(digits = 3)
> 
> data(specsdm91)
> 
> u <- usl(throughput ~ load, specsdm91)
> 
> predict(u)
   1    2    3    4    5    6    7 
  90 1078 1541 1850 1879 1822 1646 
> 
> predict(u, interval = "confidence")
   fit    lwr  upr
1   90  -41.4  221
2 1078  946.1 1209
3 1541 1409.9 1673
4 1850 1718.7 1982
5 1879 1747.4 2010
6 1822 1690.2 1953
7 1646 1514.8 1778
> 
> proc.time()
   user  system elapsed 
   0.21    0.06    0.26