Work around x_contact == x[0] in limited_linear_param_guess.

diff --git a/calibcant/bump_analyze.py b/calibcant/bump_analyze.py
index 7601cadb91b97692170c0d94f9bef5dbf1e61076..d5e0f9cc8bbe6ca7160d4eddfd7f05f3b75a3438 100644 (file)
--- a/calibcant/bump_analyze.py
+++ b/calibcant/bump_analyze.py
@@ -234,6 +234,8 @@ def limited_linear_param_guess(x, y):
     x_high = float(x[i_high])
     if x_high == x_contact:  # things must be pretty flat
         x_contact = (x_contact + x[0]) / 2
+    if x_high == x_contact:
+        x_high = x[1]
     slope = (y_high - y_contact) / (x_high - x_contact)
     return (x_contact, y_contact, slope)