matplotlib & pandas

Python/matplotlab/gallery/images_contours_and_fields/matshow.md

@@ -0,0 +1,39 @@
+# Matshow
+
+简单的 matshow 例子。
+
+```python
+import matplotlib.pyplot as plt
+import numpy as np
+
+
+def samplemat(dims):
+    """Make a matrix with all zeros and increasing elements on the diagonal"""
+    aa = np.zeros(dims)
+    for i in range(min(dims)):
+        aa[i, i] = i
+    return aa
+
+
+# Display matrix
+plt.matshow(samplemat((15, 15)))
+
+plt.show()
+```
+
+![matshow示例](https://matplotlib.org/_images/sphx_glr_matshow_001.png)
+
+## 参考
+
+此示例中显示了以下函数和方法的用法：
+
+```python
+import matplotlib
+matplotlib.axes.Axes.matshow
+matplotlib.pyplot.matshow
+```
+
+## 下载这个示例
+
+- [下载python源码: matshow.py](https://matplotlib.org/_downloads/matshow.py)
+- [下载Jupyter notebook: matshow.ipynb](https://matplotlib.org/_downloads/matshow.ipynb)