Subset the custom parameters of an operating model by simulation and projection years

```
SubCpars(x, ...)
# S4 method for OM
SubCpars(x, sims = 1:x@nsim, proyears = x@proyears)
# S4 method for MOM
SubCpars(x, sims = 1:x@nsim, proyears = x@proyears)
```

## Arguments

- x
An object of class OM or MOM

- ...
Arguments for method.

- sims
A logical vector of length `x@nsim`

to either retain (TRUE) or remove (FALSE).
Alternatively, a numeric vector indicating which simulations (from 1 to nsim) to keep.

- proyears
If provided, a numeric to reduce the number of projection years (must be less than `x@proyears`

).

## Value

An object of class OM or MOM (same class as `x`

).

## Details

Useful function for running multiMSE in batches if running into memory constraints.

## See also

Sub for MSE objects, SubOM for OM components.

## Author

T. Carruthers, Q. Huynh