Checks if the central point used is valid.
1  | isnot_validcp(grid16, loni, lati)
 | 
grid16 | 
 Data.frame with the 16-grid scheme  | 
loni | 
 Array with longitudes  | 
lati | 
 Array with latitudes  | 
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.