diffusion: fix rare invalid value warning

lumicks · Jul 17, 2024 · 521c948 · 521c948
1 parent 28eb430
commit 521c948
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lumicks/pylake/kymotracker/detail/msd_estimation.py b/lumicks/pylake/kymotracker/detail/msd_estimation.py
@@ -611,7 +611,7 @@ def estimate_diffusion_constant_simple(
     to_time = 1.0 / (2.0 * time_step)
     return DiffusionEstimate(
         value=slope * to_time,
-        std_err=np.sqrt(var_slope) * to_time,
+        std_err=np.sqrt(np.abs(var_slope)) * to_time,
         num_lags=max_lag,
         num_points=len(coordinate),
         localization_variance=intercept / 2.0,