Interpolation and graph
import numpy as np from scipy import interpolate import matplotlib.pyplot as plt Kc=np.array([ 0.35 , 0.35 , 0.75 , 1.15 , 0.45 ]) Days=np.array([ 1 , 15 , 40 , 90 , 120 ]) f=interpolate.interp1d(Days , Kc) print (f( 20 )) plt.xlabel( 'Days' ) plt.ylabel( 'Kc' ) plt.title( "Kc vs Days" ) plt.plot(Days , Kc , ) plt.show()