Add missing parameter descriptions to some docstrings

Author: sprenger

nixio/data_array.py

@@ -82,6 +82,9 @@ def append_set_dimension(self, labels=None):
         Append a new SetDimension to the list of existing dimension
         descriptors.
 
+        :param labels: The set of sample labels
+        :type labels: list or convertible to list
+
         :returns: The newly created SetDimension.
         :rtype: nixio.SetDimension
         """
@@ -103,6 +106,12 @@ def append_sampled_dimension(self, sampling_interval, label=None,
 
         :param sampling_interval: The sampling interval of the SetDimension to create.
         :type sampling_interval: float
+        :param label: The label of the dimension
+        :type label: str
+        :param unit: The physical unit of the dimension
+        :type unit: str
+        :param offset: The offset between 0 and the first sample
+        :type offset: float
 
         :returns: The newly created SampledDimension.
         :rtype: nixio.SampledDimension
@@ -126,6 +135,10 @@ def append_range_dimension(self, ticks=None, label=None, unit=None):
 
         :param ticks: The ticks of the RangeDimension to create.
         :type ticks: list of float
+        :param label: The label of the dimension
+        :type label: str
+        :param unit: The physical unit of the dimension
+        :type unit: str
 
         :returns: The newly created RangeDimension.
         :rtype: nixio.RangeDimension