如何在没有valueerror的情况下将情节嵌入Bokeh Flask？

Question

我是Bokeh和HTML的新手，正在努力建立一个图表，当两个过滤器发生变化时，该图表将发生变化。但是，当我通过FLASK运行代码时，遇到了valueerror，不确定我做错了什么。值错误显示为

"ValueError: Input must be a Model, a Document, a Sequence of Models and Document, or a dictionary from string to Model and Document

下面的追溯屏幕截图。如果有人能够指导我，我将不胜感激。谢谢

我的app.py代码

import numpy as np
from bokeh.plotting import figure
import pandas as pd
from bokeh.models.tools import HoverTool
from flask import Flask, render_template, request
from bokeh.embed import components
from bokeh.io import show


x=np.random.random(100)
y=np.random.random(100)

f_12 = pd.Series(['f1', 'f2'])
f_12 = f_12.repeat(50)
f_34 = pd.Series(['f3', 'f4'])
f_34 = f_34.repeat(50)

sample_df = pd.DataFrame(data={'x': x
                          ,'y': y
                          ,'filter_12': f_12
                          ,'filter_34': f_34})

f12_list = sample_df['filter_12'].unique().tolist()
f34_list = sample_df['filter_34'].unique().tolist()


def grph(f_12, f_34):
    small_df = sample_df.loc[(sample_df['filter_12'] == f_12) & (sample_df['filter_34'] == f_34)]   
    x = list(small_df['x'])
    y = list(small_df['y'])
    fig=figure(x_axis_label="x",y_axis_label="y")
    hover=HoverTool()
    hover.tooltips = [
            ('X ','@x'),
            ('Y', '@y')]
    hover.mode = 'mouse'
    fig.add_tools(hover)
    par = np.polyfit(x, y, 1, full=True)
    slope=par[0][0]
    intercept=par[0][1]
    y_cal = [slope*i + intercept  for i in x]

    fig.line(x, y_cal, color='red', legend="Line_fit")
    fig.circle(x, y, color='green', legend='A')

    return show(fig)

app = Flask(__name__, template_folder='templates')
# Index page
@app.route('/viz2')
def index():
    f_12 = request.args.get("f_12")
    if f_12 == None:
        f_12 = "f1"
    f_34 = request.args.get("f_34")
    if f_34 == None:
        f_34 = "f3"
    # Create the plot
    plot = grph(f_12, f_34)
            # Embed plot into HTML via Flask Render
    script, div = components(plot)
    return render_template("view1.html", script=script, div=div, f12_list=f12_list, f34_list=f34_list, f_12=f_12, f_34=f_34)

if __name__ == '__main__':
    app.run(debug=True)

我的view1.html文件

<html>
<head>
<link
    href="http://cdn.pydata.org/bokeh/release/bokeh-0.12.5.min.css"
    rel="stylesheet" type="text/css">
<link
    href="http://cdn.pydata.org/bokeh/release/bokeh-widgets-0.12.5.min.css"
    rel="stylesheet" type="text/css">

<script src="http://cdn.pydata.org/bokeh/release/bokeh-0.12.5.min.js"></script>
<script src="http://cdn.pydata.org/bokeh/release/bokeh-widgets-0.12.5.min.js"></script>

</head>
<body>
<H1>Chart</H1>

<form action="/">
<select name="f_12">
    {% for f12 in f12_list %}
        {% if f12 == f_12 %}
            <option selected value="{{ f12 }}">{{ f12 }}</option> 
        {% else %} 
            <option value="{{ f12 }}">{{ f12 }}</option> 
        {% endif %}
    {% endfor %}
</select>
<select name="f_34">
    {% for f34 in f34_list %}
        {% if f34 == f_34 %}
            <option selected value="{{ f34 }}">{{ f34 }}</option> 
        {% else %} 
            <option value="{{ f34 }}">{{ f34 }}</option> 
        {% endif %}
    {% endfor %}
</select>
<input type="submit">
</form>

{{ script|safe }}
{{ div|safe }}

</body>
</html>

Answer 1

您正在这样做：

return show(fig)

但需要这样做：

return fig

如何在没有valueerror的情况下将情节嵌入Bokeh Flask？

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如何在没有valueerror的情况下将情节嵌入Bokeh Flask？

问题描述 投票：0回答：1

1个回答

最新问题

问题描述投票：0回答：1