Created
March 27, 2023 11:16
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import matplotlib.pyplot as plt | |
from matplotlib.path import Path | |
import matplotlib.patches as patches | |
import pandas as pd | |
import sweat | |
x = [6, 180, 720] | |
X = sweat.array_1d_to_2d(x) | |
y = [831,436,332] | |
#cp = round(((12*y[2])-(3*y[1]))/9) | |
#w_prime = 0.24*(y[1] - y[2])*1000 | |
pdr = sweat.PowerDurationRegressor(model="3 param") | |
pdr.fit(X, y) | |
durations = range(0, 3600) | |
durations_2d = sweat.array_1d_to_2d(durations) | |
data = pd.DataFrame({ | |
"3 param": pdr.predict(durations_2d) | |
}) | |
print(f"CP: {pdr.cp_}") | |
print(f"W': {pdr.w_prime_}") | |
#watts is joules per seconden. controle watts = p3min - cp | |
print(f"W' in watts: {pdr.w_prime_/x[1]}") | |
# plot cp | |
fig = plt.figure(figsize=(15, 10)) | |
ax = fig.add_subplot(1, 1, 1) | |
pp1 = plt.Rectangle((0, pdr.cp_), | |
x[1], y[1]-pdr.cp_,color='orange',alpha=0.4) | |
pp2 = plt.Rectangle((0, pdr.cp_), | |
x[2], y[2]-pdr.cp_,color='orange',alpha=0.4) | |
ax.add_patch(pp1) | |
ax.add_patch(pp2) | |
#asymtoot | |
plt.text(3000, pdr.cp_-10, "cp asymtoot") | |
plt.plot([0,3600], [pdr.cp_, pdr.cp_], 'r--') | |
# linear regressie | |
plt.scatter(x, y, color="black") | |
plt.plot(durations, data['3 param'], label="cp curve") | |
plt.show() |
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