cleaner implementation for larvatagger.jl#65

src/taggingbackends/features/skeleton.py

@@ -48,7 +48,8 @@ def interpolate(times, spines, anchor, window_length,
     grid = range(istart, istop+1)
     series = []
     for i in grid:
-        t = np.trunc((anchor + i * frame_interval) * 1e4) * 1e-4
+        t = np.around(anchor + i * frame_interval, 4)
+        # nextafter may be useless now that we use around instead of trunc
         inext = np.flatnonzero(np.nextafter(t, 0) <= times)[0]
         tnext, xnext = times[inext], spines[inext]
         if tnext - t < 1e-4: