我的实际和预测的原始数据集有超过 5000 多个值我只想 plot 150 个值

Question

I tried the below code but it didn't work what else should i try

 fig=plt.figure()
    plt.plot(ypredicted[0:150],color="red",linewidth=2.5,linestyle="-")
    plt.plot(actual[0:150],color="blue",linewidth=2.5)

Answer 1

It looks like this because it is a line chart and all of those points are connected. I'm assuming you want a scatter plot showing the predicted on x-axis and actual on y-axis. If they have a positive relationship, then you know that the model is more or less predicting okay.

Try replacing your plt.plot lines with

plt.scatter(ypredicted[0:150], actual[0:150])

plt.show()