import matplotlib.pyplot as plt
plt.plot(x_test,y_pred)
print(x_test)
print()
print(y_pred)
print()
print(y_test)
plt.plot(x_test,y_test)
plt.show()
I'm trying to plot a line chart using above 3 arrays all the arrays are of same shape but still for some reason the line chart is coming out to be messy. I'm still a noob could anyone please tell me the mistake?
Output:
[31.588117 53.66093226 46.68222865 43.10782022 70.34607562 44.49285588
57.5045333 36.93007661 55.80573336 38.95476907 56.9012147 56.86890066
34.3331247 59.04974121 57.78822399 54.28232871 51.0887199 50.28283635
44.21174175 38.00548801 32.94047994 53.69163957 68.76573427 46.2309665
68.31936082 50.03017434 49.23976534 50.03957594 48.14985889 25.12848465]
[ 48.07285783 77.96480957 68.51395026 63.67333329 100.56054527
65.5490079 83.16997871 55.30716832 80.86939107 58.04909356
82.35293882 82.30917777 51.79026483 85.26256544 83.55416479
78.80633125 74.48140943 73.39004741 65.1683111 56.76353649
49.90428565 78.00639472 98.42037934 67.90283173 97.8158813
73.0478817 71.97747598 73.06061375 70.50147799 39.32494706]
[ 50.39267014 63.64239878 72.24725107 57.81251298 104.25710159
86.64202032 91.486778 55.23166089 79.55043668 44.84712424
80.20752314 83.14274979 55.72348926 77.63418251 99.05141484
79.12064627 69.58889785 69.51050331 73.68756432 61.36690454
67.17065577 85.66820315 114.85387123 90.12357207 97.91982104
81.53699078 72.11183247 85.23200734 66.22495789 53.45439421]
CodePudding user response:
Since your x-axis is not sorted, the line will be messy. It plots exactly what you tell it to plot. If you want a line graph, you'll need to sort your data first (while making sure your other vectors are sorted accordingly). You can easily do that with Pandas, for example.
import pandas as pd
df = pd.DataFrame({'x_test': x_test,
'y_test': y_test,
'y_pred': y_pred})
df.sort_values('x_test', inplace=True)
plt.plot(df.x_test, df.y_pred)
plt.plot(df.x_test, df.y_test)
plt.show()
Alternatively, as mentioned before, you're probably better of with a scatter plot:
plt.figure()
plt.plot(df.x_test, df.y_pred)
plt.scatter(df.x_test, df.y_test)
plt.show()