Changeset 0bdddc2 in sasmodels for sasmodels/models/adsorbed_layer.py

Timestamp:

Jul 28, 2017 8:59:19 PM (7 years ago)

Author:

Paul Kienzle <pkienzle@…>

Branches:

master, core_shell_microgels, costrafo411, magnetic_model, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests

Children:

a151caa

Parents:

72be531

Message:

extend sascomp so it can display sets of random models; extend model def to allow random parameter generation

File:

• sasmodels/models/adsorbed_layer.py (modified) (1 diff)

sasmodels/models/adsorbed_layer.py

@@ -94 +94 @@
 Iq.vectorized = True  # Iq accepts an array of q values
 
+def random():
+    # only care about the value of second_moment:
+    #    curve = scale * e**(-second_moment^2 q^2)/q^2
+    #    scale = 6 pi/100 (contrast/density*absorbed_amount)^2 * Vf/radius
+    # the remaining parameters can be randomly generated from zero to
+    # twice the default value.
+    import numpy as np
+    pars = dict(
+        scale=1,
+        second_moment=10**np.random.uniform(1, 3),
+    )
+    return pars
+
 # unit test values taken from SasView 3.1.2
 tests = [