search for: trmesh

...ing to triangulate a point set as follows: > head(cbind(x,y)) x y [1,] -78.1444 -60.4424 [2,] -78.1444 -58.4424 [3,] -78.1444 -56.4424 [4,] -78.1444 -54.4424 [5,] -76.1444 -60.4424 [6,] -76.1444 -58.4424 > length(x) [1] 5000 > tri <- tri.mesh(x, y) Fehler in tri.mesh(x, y) : error in trmesh > tri <- tri.mesh(x, y, "remove") Fehler in tri.mesh(x, y, "remove") : error in trmesh > tri <- tri.mesh(x, y, "strip") Fehler in tri.mesh(x, y, "strip") : error in trmesh Zusätzlich: Warnmeldung: In hist.default(i, plot = FALSE, freq = TRUE, br...

...mple of my data (UTM coordinates) > xcoords[1:5] [1] 670080.2 670080.2 670080.2 670080.2 670080.2 > ycoords[1:5] [1] 5005501 5005499 5005498 5005497 5005495 > xcoords[1:5] #try the ashape routine with error > alpha.shape<-ashape(xcoords,ycoords,15) Error in tri.mesh(X) : error in trmesh #get statistics to generate a similar dataset to test against > length(xcoords) [1] 26257 > length(ycoords) [1] 26257 > mean(xcoords) [1] 670462.4 > mean(ycoords) [1] 5005382 > sd(xcoords) [1] 149.3114 > sd(ycoords) [1] 181.5950 #generate the test data > xtest<-rnor...