add mention of seeds

nasa · Aug 24, 2023 · 2e9ba11 · 2e9ba11
1 parent 9813df3
commit 2e9ba11
Showing 1 changed file with 33 additions and 4 deletions.
diff --git a/examples/01_Simulation.ipynb b/examples/01_Simulation.ipynb
@@ -656,7 +656,7 @@
  "metadata": {},
  "outputs": [],
  "source": [
- "loading = GaussianNoiseLoadWrapper(loading, 0.2)"
+ "loading_with_noise = GaussianNoiseLoadWrapper(loading, 0.2)"
  ]
  },
  {
@@ -674,7 +674,7 @@
  "metadata": {},
  "outputs": [],
  "source": [
- "results = m.simulate_to_threshold(loading, save_freq=100)\n",
+ "results = m.simulate_to_threshold(loading_with_noise, save_freq=100)\n",
  "fig = results.inputs.plot()"
  ]
  },
@@ -691,7 +691,7 @@
  "metadata": {},
  "outputs": [],
  "source": [
- "results = m.simulate_to_threshold(loading, save_freq=100)\n",
+ "results = m.simulate_to_threshold(loading_with_noise, save_freq=100)\n",
  "fig = results.inputs.plot()"
  ]
  },
@@ -717,6 +717,30 @@
  "source": [
  "Note that the noise in input can be seen in the resulting output plots.\n",
  "\n",
+ "The seed can be set in creation of the GaussianNoiseLoadWrapper to ensure repeatable results, for example."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "loading_with_noise = GaussianNoiseLoadWrapper(loading, 0.2, seed=2000)\n",
+ "results = m.simulate_to_threshold(loading_with_noise, save_freq=100)\n",
+ "fig = results.inputs.plot()\n",
+ "\n",
+ "loading_with_noise = GaussianNoiseLoadWrapper(loading, 0.2, seed=2000)\n",
+ "results = m.simulate_to_threshold(loading_with_noise, save_freq=100)\n",
+ "fig = results.inputs.plot()"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "The load profiles in the two examples above are identical because they share the same random seed.\n",
+ "\n",
  "In this section we introduced the concept of NoiseWrappers and how they are used to represent uncertainty in future loading. This concept is expecially important when used with prediction (see 9. Prediction). A GuassianNoiseLoadWrapper was used with a Piecewise loading profile to demonstrate it, but NoiseWrappers can be applied to any loading object or function, including the advanced profiles introduced in the next section."
  ]
  },
@@ -900,7 +924,12 @@
  "## Conclusions\n",
  "...\n",
  "\n",
- "simulate_to_event(), events"
+ "simulate_to_event(), events\n",
+ "loading.plot()\n",
+ "guassian std dev for each event.\n",
+ "Guassian std dev as function of t\n",
+ "Switch to use generator so you can set seed\n",
+ "remove x=None requirement\n"
  ]
  }
  ],