python2 compat: don't assume true division

2017-01-20 09:09:18 +08:00 · 2017-01-20 09:09:18 +08:00 · 4553b55f73
commit 4553b55f73
parent 0a8d5b253a
1 changed files with 1 additions and 1 deletions
--- a/pyqtgraph/graphicsItems/PlotDataItem.py
+++ b/pyqtgraph/graphicsItems/PlotDataItem.py
@ -681,7 +681,7 @@ class PlotDataItem(GraphicsObject):
            x = x2
        n = y.size
        f = np.fft.rfft(y) / n
-        d = (x[-1] - x[0]) / (n - 1)
+        d = float(x[-1]-x[0]) / (len(x)-1)
        x = np.fft.rfftfreq(n, d)
        y = np.abs(f)
        return x, y