Subset an lobo object, in a way that is somewhat
analogous to subset.data.frame.
# S4 method for lobo
subset(x, subset, ...)a lobo object.
a condition to be applied to the data portion of
x.  See ‘Details’.
ignored.
A new lobo object.
Other things related to lobo data: [[,lobo-method,
  [[<-,lobo-method, as.lobo,
  lobo-class, lobo,
  plot,lobo-method, read.lobo,
  summary,lobo-method
Other functions that subset oce objects: subset,adp-method,
  subset,adv-method,
  subset,amsr-method,
  subset,argo-method,
  subset,cm-method,
  subset,coastline-method,
  subset,ctd-method,
  subset,echosounder-method,
  subset,met-method,
  subset,oce-method,
  subset,odf-method,
  subset,rsk-method,
  subset,sealevel-method,
  subset,section-method,
  subset,topo-method