Use inplace multiply

2016-01-02 10:31:03 -08:00 · 2016-01-02 10:31:03 -08:00 · e495bbc69b
commit e495bbc69b
parent 15ba9e67e6
1 changed files with 1 additions and 1 deletions
--- a/pyqtgraph/functions.py
+++ b/pyqtgraph/functions.py
@ -826,7 +826,7 @@ def rescaleData(data, scale, offset, dtype=None):
        #p = np.poly1d([scale, -offset*scale])
        #data = p(data).astype(dtype)
        d2 = data-offset
-        d2 = np.multiply(d2, scale)
+        np.multiply(d2, scale, out=d2, casting="unsafe")
        data = d2.astype(dtype)
    return data