## S3 method for class 'dspat':
AIC(object,...,k)
## S3 method for class 'dspat':
print(x,...)
## S3 method for class 'dspat':
summary(object,...)
## S3 method for class 'dspat':
coef(object,...)
## S3 method for class 'dspat':
vcov(object,...)
x.psp==y.psp
x.psp!=y.psp
rev_val(x,y,val)
im.clipped(x, window)
owin.gpc.poly(window)dspat with class dspat, for rev_val: a vector of x coordinates,
for im.clipped: a vector of image values idspat with class dspatrev_val reverses order of val such that y increases within increasing x as needed in im
im.clipped creates image and fills values (val) into the clipped portion
of the image as defined by window
owin.gpc.poly creates a gpc class poly from first polygon of an owin class
}