title: how to installing fbprophet module
body: <p>I type some code about forecasting and predicting price of bitcoin.
  Before installing fbprophet,
  it need to install pystan first.</p>
  <p>but i failed to build pystan WHEN I open cmd and type &quot;pip install pystan&quot;</p>
  <p>could someone give me a hand?</p>
  <p>below is my code:</p>
  <pre class="lang-python prettyprint-override"><code>import pandas as pd
  
  from fbprophet import Prophet
  
  df = pd.read_csv(r'D:\downloads\BTC-USD.csv')
  df = df[[&quot;Date&quot;, &quot;Close&quot;]]
  df.columns = [&quot;ds&quot;, &quot;y&quot;]
  print(df)
  
  prophet = Prophet()
  prophet.fit(df)
  
  future = prophet.make_future_dataframe(periods=365)
  print(future)
  
  forecast = prophet.predict(future)
  forecast[[&quot;ds&quot;, &quot;yhat&quot;, &quot;yhat_lower&quot;, &quot;yhat_upper&quot;]].tail(200)
  
  from fbprophet.plot import plot
  prophet.plot(forecast, figsize=(20, 10))
  </code></pre>
  <p>below is my terminal result:</p>
  <pre><code>PS D:\python&gt; python 211030.py
  Traceback (most recent call last):
    File &quot;D:\python\211030.py&quot;, line 3, in &lt;module&gt;
      from fbprophet import Prophet
  ModuleNotFoundError: No module named 'fbprophet'
  </code></pre>