| nwsDeclare {nws} | R Documentation |
Declare a variable with particular mode in a shared netWorkSpace.
nwsDeclare(.Object, xName, mode)
.Object |
a netWorkSpace class object. |
xName |
character string giving the name of variable to be declared. |
mode |
character string specifying the mode of the variable, see Details. |
If xName has not already been declared in the netWorkSpace, the behavior
of xName will be determined by mode. Possible values are
'fifo' (the default), 'lifo', 'multi', or
'single'. In the first three cases,
multiple values can be associated with xName. When a value is
retrieved for xName, the oldest value stored will be used in
'fifo' mode, the youngest in 'lifo' mode, and a
nondeterministic choice will be made in 'multi' mode. In
'single' mode, only the most recent value is retained.
## Not run:
ws <- netWorkSpace('nws example')
nwsDeclare(ws, 'pi', 'single')
nwsStore(ws, 'pi', 2.171828182)
nwsStore(ws, 'pi', 3.141592654)
nwsListVars(ws) # shows that only the most recent value of pi is retained
## End(Not run)