added docstrings

Author: davidsebfischer

batchglm/data.py

@@ -481,6 +481,8 @@ def build_equality_constraints_string(
     :param constraints: List of constraints as strings.
 
         E.g. ["batch1 + batch2 + batch3 = 0"]
+    :param dims: ["design_loc_params", "loc_params"] or ["design_scale_params", "scale_params"]
+        Define dimension names of xarray.
     :return: a constraint matrix
     """
     n_par_all = dmat.data_vars['design'].values.shape[1]

batchglm/unit_test/glm_all/test_acc_constrained_vglm_all.py

@@ -107,7 +107,7 @@ def get_simulator(self):
         if self.noise_model is None:
             raise ValueError("noise_model is None")
         else:
-            if self.noise_model=="nb":
+            if self.noise_model == "nb":
                 from batchglm.api.models.glm_nb import Simulator
             else:
                 raise ValueError("noise_model not recognized")