从每个数据框列创建打印子图

时间:2019-10-30 08:26:26

标签: python plotly

我有一个包含36列的数据框'df',这些列被绘制到单个绘图图表上,并使用以下代码以html格式显示。

import plotly.offline as py
import plotly.io as pio

pio.write_html(py.offline.plot([{
'x': df.index,
'y': df[col],
'name': col
}for col in trend_data.columns], filename=new_file_path))

我想遍历每一列并为每列创建一个子图。我已经尝试过;

from plotly.subplots import make_subplots

sub_titles = df.columns()
fig = make_subplots(rows=6, cols=6, start_cell="bottom-left", subplot_titles=sub_titles)
for i in df.columns:
    fig.add_trace(i)

我创建了6行和列,因为这将给出36个图,并尝试将标头名称用作子图标题,但是我收到ValueError指出它期望使用二维字典列表。

此外,我尝试通过添加子图标题;

sub_titles = list(df)
fig = py.subplots.make_subplots(rows=6, cols=6, sub_titles=sub_titles)

这也会返回错误。感谢您的帮助。

2 个答案:

答案 0 :(得分:2)

有关如何使用子图的信息,请参见documentation。这可能有效:

更新(包括子图标题)

fig = py.subplots.make_subplots(rows=36, cols=1, subplot_titles=df.columns)
j = 1
for i in df.columns:
    fig.add_trace(
        go.Scatter(
            {'x': df.index, 
             'y': df[i]}), 
             row=j, col=1)
    j += 1

这将导致以下绘图(包含我的数据):

df = pd.DataFrame(np.random.randint(5, size=(5, 3)), columns=['one', 'two', 'three'])

subplots

答案 1 :(得分:2)

情节:

enter image description here

代码:

# imports
from plotly.subplots import make_subplots
import plotly.graph_objs as go
import pandas as pd
import numpy as np

# data
np.random.seed(123)
frame_rows = 50
n_plots = 36
frame_columns = ['V_'+str(e) for e in list(range(n_plots+1))]
df = pd.DataFrame(np.random.uniform(-10,10,size=(frame_rows, len(frame_columns))),
                  index=pd.date_range('1/1/2020', periods=frame_rows),
                    columns=frame_columns)
df=df.cumsum()+100
df.iloc[0]=100

# plotly setup
plot_rows=6
plot_cols=6
fig = make_subplots(rows=plot_rows, cols=plot_cols)

# add traces
x = 0
for i in range(1, plot_rows + 1):
    for j in range(1, plot_cols + 1):
        #print(str(i)+ ', ' + str(j))
        fig.add_trace(go.Scatter(x=df.index, y=df[df.columns[x]].values,
                                 name = df.columns[x],
                                 mode = 'lines'),
                     row=i,
                     col=j)

        x=x+1

# Format and show fig
fig.update_layout(height=1200, width=1200)
fig.show()

添加: 1列解决方案:

代码:

# imports
from plotly.subplots import make_subplots
import plotly.graph_objs as go
import pandas as pd
import numpy as np

# data
np.random.seed(123)
frame_rows = 50
frame_columns = ['V_'+str(e) for e in list(range(1,37))]
df = pd.DataFrame(np.random.uniform(-8,10,size=(frame_rows, len(frame_columns))),
                  index=pd.date_range('1/1/2020', periods=frame_rows),
                    columns=frame_columns)
df=df.cumsum()+100
df.iloc[0]=100

# plotly setup
plot_rows=6
plot_cols=6

lst1 = list(range(1,plot_rows+1))
lst2 = list(range(1,plot_cols+1))

fig = make_subplots(rows=36, cols=1, subplot_titles=df.columns, insets=[{'l': 0.1, 'b': 0.1, 'h':1}])

# add traces
x = 1
for i in lst1:
    for j in lst2:
        #print(str(i)+ ', ' + str(j))
        fig.add_trace(go.Scatter(x=df.index, y=df[df.columns[x-1]].values,
                                 name = df.columns[x-1],
                                 mode = 'lines',
                                 ),

                      row=x,
                     col=1)

        x=x+1

fig.update_layout(height=12000, width=1200)

fig.show()

图:

enter image description here