lag.listw {spdep} | R Documentation |
Using a listw
sparse representation of a spatial weights matrix, compute the lag vector V x
lag.listw(listw, x, zero.policy=FALSE)
listw |
a listw object created for example by nb2listw |
x |
a numeric vector the same length as the neighbours list in listw |
zero.policy |
if TRUE assign zero to the lagged value of zones without neighbours, if FALSE assign NA |
a numeric vector the same length as x
Roger Bivand Roger.Bivand@nhh.no
data(oldcol) Vx <- lag.listw(nb2listw(COL.nb, style="W"), COL.OLD$CRIME) plot(Vx, COL.OLD$CRIME) require(stepfun) plot(ecdf(COL.OLD$CRIME)) plot(ecdf(Vx), add=TRUE, col.points="red", col.hor="red")