npn_check_point_cached {rnpn} | R Documentation |
Check Point Cached
Description
Checks in the global variable "point values" to see if the exact data point being requested has already been asked for and returns the value if it's already saved.
Usage
npn_check_point_cached(layer, lat, long, date)
Arguments
layer |
The name of the queried layer. |
lat |
The latitude of the queried point. |
long |
The longitude of the queried point. |
date |
The queried date. |
Value
The numeric value of the cell located at the specified coordinates
and date if the value has been queried, otherwise NULL
.
[Package rnpn version 1.4.0 Index]