matplot_sub.py

plt.figure(figsize=(15,8))

plt.subplot(4, 1, 1)
plt.plot(OH.iloc[:,0],OH.iloc[:,1])
plt.ylim(0, 3.5e-18)
plt.xlim(3580, 3900)
plt.title('R branch', fontsize=16, pad=-20)

plt.subplot(4, 1, 2)
plt.plot(OH.iloc[:,0],OH.iloc[:,1])
plt.ylim(0, 3.5e-18)
plt.xlim(3580, 3900)
for i in range(len(trans)):
        plt.text(trans[i],inten[i],'%d'%i)

plt.subplot(4, 1, 3)
plt.plot(OH.iloc[:,0],OH.iloc[:,1])
plt.ylim(0, 3.5e-18)
plt.xlim(3580, 3900)
for i in range(len(trans_clean)):
        plt.text(trans_clean[i],inten_clean[i],'%d'%i)

plt.subplot(4, 1, 4)
plt.plot(OH.iloc[:,0],OH.iloc[:,1])
plt.ylim(0, 3.5e-18)
plt.xlim(3580, 3900)
for i in range(len(trans_clean)):
    if (i%2==0):
        plt.text(trans_clean[i]-3, inten_clean[i]+0.1e-18, '%.1f'%(i/2+0.5), color='red')
    else:
        plt.text(trans_clean[i]-3, inten_clean[i]+0.5e-18, '%.1f'%((i+1)/2 +0.5), color='green')
plt.show()