Better comment, use -inf as startup min

2022-06-26 10:41:21 -04:00 · 2022-06-26 10:41:21 -04:00 · 783914c7fe
parent 920a394539
commit 783914c7fe
1 changed files with 2 additions and 1 deletions
--- a/piker/ui/_compression.py
+++ b/piker/ui/_compression.py
@ -314,7 +314,8 @@ def _m4(
    # set all y-values to the first value passed in.
    y_out[bincount] = ys[0]

-    mx: float = 0
+    # full input y-data mx and mn
+    mx: float = -np.inf
    mn: float = np.inf

    # compute OHLC style max / min values per window sized x-frame.