plot_pr.py

import numpy as np
from sklearn.metrics import precision_recall_curve
from sklearn.metrics import average_precision_score
import matplotlib.pyplot as plt
import numpy as np

plt.clf()
filename = ['CNN+ATT','Hoffmann','MIMLRE','Mintz','PCNN+ATT']
color = ['red', 'turquoise', 'darkorange', 'cornflowerblue', 'teal']
for i in range(len(filename)):
	precision = np.load('./data/'+filename[i]+'_precision.npy')
	recall  = np.load('./data/'+filename[i]+'_recall.npy')
	plt.plot(recall,precision,color = color[i],lw=2,label = filename[i])


#ATTENTION: put the model iters you want to plot into the list
model_iter = [10900]
for one_iter in model_iter:
	y_true = np.load('./data/allans.npy')
	y_scores = np.load('./out/sample_allprob_iter_'+str(one_iter)+'.npy')

	precision,recall,threshold = precision_recall_curve(y_true,y_scores)
	average_precision = average_precision_score(y_true, y_scores)

	plt.plot(recall[:], precision[:], lw=2, color='navy',label='BGRU+2ATT')
	plt.xlabel('Recall')
	plt.ylabel('Precision')
	plt.ylim([0.3, 1.0])
	plt.xlim([0.0, 0.4])
	plt.title('Precision-Recall Area={0:0.2f}'.format(average_precision))
	plt.legend(loc="upper right")
	plt.grid(True)
	plt.savefig('iter_'+str(one_iter))