创建后可以保存matplotlib
数字吗?例如:
import matplotlib.pyplot as plt
import numpy
normal = numpy.random.normal(0, 1, 100)
df = pandas.DataFrame(normal.reshape((10, 10)))
figs = []
for i in df.keys():
fig = plt.figure()
plt.plot(df.index, df[i])
figs.append(fig)
print(figs)
在列表中生成数字:
[<matplotlib.figure.Figure object at 0x7f8f158f1b00>, <matplotlib.figure.Figure object at 0x7f8f100d6128>, <matplotlib.figure.Figure object at 0x7f8f10081da0>, <matplotlib.figure.Figure object at 0x7f8f0a0354a8>, <matplotlib.figure.Figure object at 0x7f8f09fbd470>, <matplotlib.figure.Figure object at 0x7f8f09f18b00>, <matplotlib.figure.Figure object at 0x7f8f09f12d68>, <matplotlib.figure.Figure object at 0x7f8f09e88860>, <matplotlib.figure.Figure object at 0x7f8f09ebbc18>, <matplotlib.figure.Figure object at 0x7f8f09d6e198>]
我希望不必在创建后直接显式保存绘图,但可以选择稍后执行(可能来自另一个类)。理想情况是将fig
传递给plt.savefig
,但似乎没有可用于此类用法的插槽。
澄清。我想这样做:
fname = r'/path/to/file.jpg'
plt.savefig(fname, fig=figs[2])
这可能以另一种方式吗?
答案 0 :(得分:2)
只需使用fig.savefig()
即可。这是针对您的案例剪切的代码:
for idx, fig in enumerate(figs):
fname = '{}_tmp.jpg'.format(idx)
fig.savefig(fname)