{Error using assert The condition input argument must be convertible to a scalar logical. Error in gemini3d.read.frame (line 35) assert(isfile(filename), "Invalid simulation directory: no data file found") Error in aurogem.sim.plot (line 166) dat = gemini3d.read.frame(direc,'time',time, vars = ["ne", "Ti", "Te", "v1", "v2", "v3", "J1", "J2", "J3", "Phitop","vn1","vn2","vn3"]); Error in aurogem.sim.process (line 39) aurogem.sim.plot(direc... }