First of all, regarding the contents of the csv file, it says x1,x2,1,y from the first column.(Actually 101 rows and 4 columns)
"x1", "x2", "1", "y"
-0.626,-0.620,1,0.282
0.183,0.042,1,1.732
-0.835,-0.910,1,-0.293
1.595,0.158,1,2.506
0.329,-0.654,1,0.615
Therefore, I would like to set the horizontal axis to a*x1+b*x2 and the vertical axis to y, but it does not work.How do I extract data one line at a time and multiply and plot the variables a,b?
I am not sure about the setting of a and b, but I will answer as a fixed value.Also, the CSV file is aaa.csv.
import numpy as np
import matplotlib.pyplot asplt
data=np.loadtxt('aaa.csv', delimiter=',', skiprows=1)
print("data\n", data)
a = 1
b = 2
x1 = data [:, 0]
x2 = data [:,1]
y=data[:,3]
print(x1,x2,y)
x = a* x1 + b* x2
config=plt.figure()
ax=fig.add_subplot(1,1,1)
ax.scatter(x,y)
ax.set_xlabel('x')
ax.set_ylabel('y')
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