Knitr: python引擎输出不是.md或.html格式

Question

处理. rmd文件时，没有显示matplotlib img。是否有一个块选项，或不同的matplotlib方法是需要的?

---
title: "Viz Examples"
output:
  html_document:
    keep_md: true
---
```{r testplot, engine="python"}
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
for c, z in zip(['r', 'g', 'b', 'y'], [30, 20, 10, 0]):
xs = np.arange(20)
ys = np.random.rand(20)
# You can provide either a single color or an array. To demonstrate this,
# the first bar of each set will be colored cyan.
cs = [c] * len(xs)
cs[0] = 'c'
ax.bar(xs, ys, zs=z, zdir='y', color=cs, alpha=0.8)
ax.set_xlabel('X')
ax.set_ylabel('Y')
ax.set_zlabel('Z')
plt.print()
```

Answer 1

用

代替plt.print()或plt.show()

plt.savefig("somefilename.ext")

ext为png或jpg或其他支持的输出格式，以及任何其他savefig选项，如transparent，则使用使用标准针织机制的图形。

' ' ' {r showfig,include=TRUE,echo=FALSE, results='asis'}猫("! (./threedee.png)")

' ' '