vmap.calc {RGeostats} | R Documentation |
Calculate the Variogram Map for a set of variables on a set of isolated points
vmap.calc(db, dbmap = NA, nx = 10, ny = 10, dx = NA, dy = NA, calcul = "vg", radix = NA, modify.target = db.locmod())
db |
The |
dbmap |
The |
nx |
Gives the dimension of the Variogram Map along the first axis (2*nx+1) |
ny |
Gives the dimension of the Variogram Map along the second axis (2*ny+1) |
dx |
Gives the mesh of the Variogram Map along the first axis. If not provided, it is calculated as proportion of the field elongation along the first direction. |
dy |
Gives the mesh of the Variogram Map along the second axis. If not provided, it is calculated as proportion of the field elongation along the second direction. |
calcul |
Character string giving the type of structure to compute:
|
radix |
Radix of the name given to the variables stored in the Variogram Map Grid |
modify.target |
Decides whether or not the newly created variables will have their
locator defined or not. For more information, see |
The output consists of a new Grid Data Base with several new variables:
VMAP |
Variables containing the variogram map results |
NB |
Variables containing the number of pairs |