fix: Update all APIs to pyhf v0.7.0 (#34)

* Update all APIs to be consistent with v0.7.0.
   - Remove comment about making measurement on the fly with
     `workspace.get_measurement` as no longer relevant.
   - Remove all use of `workspace.parameters`, now
     `workspace.model().config.parameters`, as the notebooks
      are focusing on workspace attributes, not model config
      attributes.
* Amends PR #29

book/Combinations.ipynb

@@ -99,7 +99,6 @@
     "print(f\"       nbins: {combined_workspace.channel_nbins}\")\n",
     "print(f\"     samples: {combined_workspace.samples}\")\n",
     "print(f\"   modifiers: {combined_workspace.modifiers}\")\n",
-    "print(f\"  parameters: {combined_workspace.parameters}\")\n",
     "print(f\"measurements: {combined_workspace.measurement_names}\")"
    ]
   },

book/SimpleWorkspace.ipynb

@@ -136,22 +136,6 @@
     "workspace.get_measurement(measurement_index=0)"
    ]
   },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Or create a new measurement on the fly by specifying the name for the parameter of interest:"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "workspace.get_measurement(poi_name=\"mu\")"
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -241,7 +225,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -255,7 +239,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.7"
+   "version": "3.10.4"
   }
  },
  "nbformat": 4,

book/WorkspaceManipulations.ipynb

@@ -344,7 +344,6 @@
     "print(f\"       nbins: {ws.channel_nbins}\")\n",
     "print(f\"     samples: {ws.samples}\")\n",
     "print(f\"   modifiers: {ws.modifiers}\")\n",
-    "print(f\"  parameters: {ws.parameters}\")\n",
     "print(f\"observations: {ws.observations}\")"
    ]
   },