csv = pd.read_csv('file.csv')
data=csv[['deformacia','napatie']]
data=data.astype(float)
x=data['deformacia']
y=data['napatie']
plt.scatter(x,y,s=1)



fit=np.polyfit(y,x,4)
p=np.poly1d(fit)
plt.plot(x,p(y),"r")
plt.show()