我有这段代码:
import matplotlib.pyplot as pl
pl.plot(np.log(alphas_lasso),coefs_lasso.T) #this generate a plot which xlim=[-8,-2]
for alpha in alpha_min:
pl.axvline(np.log(alpha),0,1) #add vertical line for every value of alpha
pl.xlim([-10,0]) # the xlim value I would like to set
pl.xlabel('Log(alpha)')
pl.ylabel('coefficients')
pl.title('Lasso Path')
pl.axis('tight')
pl.show()
print "log(alpha_min)=",log(alpha_min)
它有效,但x轴从-8到-2,而我想从-10到0,错误在哪里?
答案 0 :(得分:2)
您使用pl.axis('tight')
将xrange设置为默认值。尝试删除该行,或将其放在xlim
命令之前。
pl.axis('tight')
对{{1}}说:
“更改x和y轴限制,以便显示所有数据。”