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3ff436c Apr 12, 2017
Ethan Cerami Added
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from flask import Flask, render_template, request
import pandas as pd
from bokeh.charts import Histogram
from bokeh.embed import components
app = Flask(__name__)
# Load the Iris Data Set
iris_df = pd.read_csv("data/",
names=["Sepal Length", "Sepal Width", "Petal Length", "Petal Width", "Species"])
feature_names = iris_df.columns[0:-1].values.tolist()
# Create the main plot
def create_figure(current_feature_name, bins):
p = Histogram(iris_df, current_feature_name, title=current_feature_name, color='Species',
bins=bins, legend='top_right', width=600, height=400)
# Set the x axis label
p.xaxis.axis_label = current_feature_name
# Set the y axis label
p.yaxis.axis_label = 'Count'
return p
# Index page
def index():
# Determine the selected feature
current_feature_name = request.args.get("feature_name")
if current_feature_name == None:
current_feature_name = "Sepal Length"
# Create the plot
plot = create_figure(current_feature_name, 10)
# Embed plot into HTML via Flask Render
script, div = components(plot)
return render_template("iris_index1.html", script=script, div=div,
feature_names=feature_names, current_feature_name=current_feature_name)
# With debug=True, Flask server will auto-reload
# when there are code changes
if __name__ == '__main__':, debug=True)