daviddoji/Kalman-and-Bayesian-Filters-in-Python
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Issue #343

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Measurements were being plotted off by one (day 0 instead of the
correct day 1).
This commit is contained in:
Roger Labbe 2020-10-13 09:16:06 -07:00
parent 2126f9ebc8
commit c47668ec31
2 changed files with 16 additions and 16 deletions
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22
01-g-h-filter.ipynb
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File diff suppressed because one or more lines are too long

10
kf_book/gh_internal.py
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@ -48,7 +48,7 @@ def plot_hypothesis2():
plt.errorbar(range(1, 11), [169, 170, 169,171, 170, 171, 169, 170, 169, 170],
xerr=0, yerr=6, fmt='bo', capthick=2, capsize=10)
plt.plot([1, 10], [169, 170.5], color='g', ls='--')
plt.xlim(0, 11)
plt.ylim(150, 185)
plt.xlabel('day')
@ -89,7 +89,7 @@ def plot_hypothesis4():
book_plots.show_legend()
plt.grid(False)
def plot_hypothesis5():
weights = [158.0, 164.2, 160.3, 159.9, 162.1, 164.6,
169.6, 167.4, 166.4, 171.0, 171.2, 172.6]
@ -108,8 +108,8 @@ def plot_hypothesis5():
plt.ylabel('weight (lbs)')
book_plots.show_legend()
plt.grid(False)
def plot_estimate_chart_1():
with figsize(y=2.5):
plt.figure()
@ -179,7 +179,7 @@ def plot_gh_results(weights, estimates, predictions, actual, time_step=0):
else:
rng = range(n, n+1)
xs = range(n+1)
book_plots.plot_measurements(weights, color='k', lines=False)
book_plots.plot_measurements(range(1, len(weights)+1), weights, color='k', lines=False)
book_plots.plot_filter(xs, estimates, marker='o', label='Estimates')
book_plots.plot_track(xs[1:], predictions, c='r', marker='v', label='Predictions')
plt.plot([xs[0], xs[-1]], actual, c='k', lw=1, label='Actual')