diff --git a/docs/source/quickstart_illcond.rst b/docs/source/quickstart_illcond.rst index bc9a3a7..00d8cce 100644 --- a/docs/source/quickstart_illcond.rst +++ b/docs/source/quickstart_illcond.rst @@ -38,7 +38,7 @@ This section describes the 3 most basic ways to run the explainer. Additional methods will be described later in the :doc:`advanced_usage_illcond` section. The :ref:`kappa_explain ` method looks for explanations of -arbitrary size. By default it will provide a row-based explanation, but a +arbitrary size. By default, it will provide a row-based explanation, but a column-based explanation can be obtained by setting the ``expltype`` function argument to ``"COLS"``. Here is the simplest sequence of commands to do this. @@ -107,8 +107,8 @@ The last 5 rows all consist of small multipliers and constraint coefficients on the order of 1 or less, so their contribution to the explanation is minimal. The first two basis rows provide the explanation, and examination of these reveals that they intersect the -same 3 variables, and that the rows are almost parallel. This is thie -cause of the ill conditioning. Remedies depend on the model in +same 3 variables, and that the rows are almost parallel. This is the +cause of the ill-conditioning. Remedies depend on the model in general, but in this case the modeler should focus on whether the coefficient of 0.999999999 in constraint ``R09bad`` has a meaningful difference fromn the coefficient in constraint ``R09``, or if the @@ -117,7 +117,7 @@ model. In the former case, the model needs to reflect that difference in a way that it is larger; in the latter case the coefficient should be cleaned up to the true value of 1.0. -The column based explanation is analagous, with an MPS file consisting +The column-based explanation is analagous, with an MPS file consisting of a combined column named ``GRB_Combined_Column`` followed by the individual columns in the explanation. Here is the explanation for the same model::