| stf {FLasher} | R Documentation |
Similar to the old STF method in FLAssess. Extends the object by a number of years and fill in the life history characteristics by taking a mean of the last few years.
stf(object, ...) ## S4 method for signature 'FLStock' stf( object, nyears = 3, wts.nyears = 3, fbar.nyears = wts.nyears, f.rescale = FALSE, arith.mean = TRUE, na.rm = TRUE, end = dims(object)$maxyear + nyears, disc.nyears = wts.nyears ) ## S4 method for signature 'FLBiol' stf( object, nyears = 3, wts.nyears = 3, arith.mean = TRUE, na.rm = TRUE, end = dims(object)$maxyear + nyears ) ## S4 method for signature 'FLStocks' stf(object, ...)
object |
The object (FLStock or FLBiol) |
... |
Other things. |
nyears |
Number of years to extend the object |
wts.nyears |
Number of years to average over to get the future mean weights at age. |
fbar.nyears |
Number of years to average the F over (only used if object is an FLStock) |
f.rescale |
Rescale F (TRUE or FALSE - default is FALSE) |
arith.mean |
If TRUE the arithmetic mean is used. If FALSE the geometric mean is used. Default is TRUE. |
na.rm |
For the mean function. |
end |
My beautiful friend |
disc.nyears |
Number of years to average over to get the future mean proportion of discards at age. |
data(ple4) proj <- stf(ple4, 3)