Using python 3.6.5
import numpy as np
valores = np.genfromtxt("arquivo.csv",delimiter = ";",skip_header = 1)
print(valores)
.csv file:
Valores1,Valores2,Valores3
10,20,30
40,50,60
70,80,90
34,54,23
Output:
array([nan, nan, nan, nan])
What's happening?
As already indicated in the comments, it is only the parameter of the delimiter that is wrong. When changing from ";" to "," the code works:
import numpy as np
valores = np.genfromtxt("arquivo.csv", delimiter=",", skip_header=1)
print(valores)
# saída:
[[10. 20. 30.]
[40. 50. 60.]
[70. 80. 90.]
[34. 54. 23.]]