CC.test                 Random shift test of independence in a
                        bivariate random field
CWR.test                Random shift test of independence between a
                        point process and a covariate
PC.test                 Random shift test of independence between a
                        point process and a covariate
PM.test                 Test of independence between marks and points
                        of a stationary marked point process
PMC.test                Random shift test of independence between marks
                        of a point process and a covariate
PP.test                 Random shift test of independence in a
                        bivariate point process
tau.est                 (Partial) correlation coefficient between a
                        point process and a covariate
tau.test                Random shift test of independence between a
                        point process and a covariate
