The VARIOGRAM Procedure

Syntax

The following statements are available in PROC VARIOGRAM.

PROC VARIOGRAM options ;: COMPUTE computation-options ;; COORDINATES coordinate-variables ;; DIRECTIONS directions-list ;; VAR analysis-variables-list ;

The COMPUTE and COORDINATES statements are required.

The following table outlines the options available in PROC VARIOGRAM classified by function.

Table 70.1: Options Available in the VARIOGRAM Procedure

Task	Statement	Option
Data Set Options
specify input data set	PROC VARIOGRAM	DATA=
write spatial continuity measures	PROC VARIOGRAM	OUTVAR=
write distance histogram information	PROC VARIOGRAM	OUTDISTANCE=
write pairwise point information	PROC VARIOGRAM	OUTPAIR=
Declaring the Role of Variables
specify the analysis variables	VAR
specify the x, y coordinates in the DATA= data set	COORDINATES	XCOORD= YCOORD=
Controlling Continuity Measure Computations
specify the basic lag distance	COMPUTE	LAGDISTANCE=
specify the tolerance around the lag distance	COMPUTE	LAGDISTANCE=
specify the maximum number of lags in computations	COMPUTE	MAXLAGS=
specify the number of angle classes	COMPUTE	NDIRECTIONS=
specify the angle tolerances for angle classes	COMPUTE	ANGLETOL=
specify the bandwidths for angle classes	COMPUTE	BANDWIDTH=
compute robust semivariogram	COMPUTE	ROBUST
suppress computation of all continuity measures	COMPUTE	NOVARIOGRAM
Controlling Distance Histogram Data Set
specify the distance histogram data set	PROC VARIOGRAM	OUTDISTANCE=
specify the number of histogram classes	COMPUTE	NHCLASSES=
Controlling Pairwise Information Data Set
specify the pairwise data set	PROC VARIOGRAM	OUTPAIR=
specify the maximum distance for the pairwise data set	COMPUTE	OUTPDISTANCE=