I have been looking to find a package that will allow to plot time series longitude/latitude in a map with density and connecting lines.
For example, if t=1 for (lon1,lat1) then circle of diameter 1 is plotted at lon1, lat1.
if t=3 for (lon2,lat2) then circle of diameter 3 is plotted at...
suppose you have 4 variables (W,X,Y,Z) and 1000 cases.
I want to make a new variable as follows:
For each case, select highest (W,X,Y,Z).
Does this make sense? how to do this in spss??
thank you a lot!!