maxframe.dataframe.DataFrame.plot.bar#

DataFrame.plot.bar(*args, **kwargs)#

垂直条形图。

条形图是一种以矩形条形式展示分类数据的图表，其长度与所代表的值成比例。条形图展示了离散类别之间的比较。图表的一个轴显示被比较的具体类别，另一个轴表示测量值。

参数:

x (label or position, optional) -- 允许绘制一列与另一列的对比。如果未指定，则使用 DataFrame 的索引。
y (label or position, optional) -- 允许绘制一列与另一列的对比。如果未指定，则使用所有数值列。
color (str, array-like, or dict, optional) --
DataFrame各列的颜色。可能的值有：
- A single color string referred to by name, RGB or RGBA code, for instance 'red' or '#a98d19'.
- A sequence of color strings referred to by name, RGB or RGBA code, which will be used for each column recursively. For instance ['green','yellow'] each column's bar will be filled in green or yellow, alternatively. If there is only a single column to be plotted, then only the first color from the color list will be used.
- A dict of the form {column name : color}, so that each column will be colored accordingly. For example, if your columns are called a and b, then passing {'a': 'green', 'b': 'red'} will color bars for column a in green and bars for column b in red.
**kwargs -- 其他关键字参数请参见 DataFrame.plot()。

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