Jupyter笔记本-函数内绘图-不绘制图形

Question

我想从一个类中调用一个函数，在这个类中我想绘制几个图形。 没有抛出错误，但我没有收到情节，但仅：

#############################################
Histograms of the continuous data:
#############################################
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>
<Figure size 640x480 with 1 Axes>

我使用的代码是：

class Pipeline:
    import matplotlib.pyplot as plt
    global plt
    from matplotlib import style
    style.use('ggplot')  


    def __init__(self,goal):
        self.goal = goal


    def examine(self,dataset):
        # Check for categorical and continous data
        continuous = []
        categorical = []
        for n,i in enumerate(dataset.columns):
            if isinstance(dataset[i][1],str):
                categorical.append(dataset.columns[n])
            else:
                continuous.append(dataset.columns[n])

        continuous_data = dataset[continuous]
        categorical_data = dataset[categorical]

        #Plot the histograms of the continuous data
        print('#############################################')
        print('Histograms of the continuous data:')
        print('#############################################')

        for col in continuous_data.columns:
            fig = plt.figure()
            ax = continuous_data[col].hist()
            ax.set_title(col)
            plt.show()







pipe = Pipeline('C')
pipe.examine(data)

我想知道，如果我再次运行同一个代码，它会按照建议绘制图形。 感谢您的帮助！

Answer 1

看起来你在用Jupyter。要在Jupyter中显示绘图，可以添加

%matplotlib inline

或者

%matplotlib notebook

（对于一个稍微花哨一点的绘图选项）