title: Simple Linear Regression issue in Python
body: <p>I have this data:</p>
  <p><a href="https://i.stack.imgur.com/y7Zrt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/y7Zrt.png" alt="enter image description here" /></a></p>
  <p>and I am trying to do a simple linear regression model on it.</p>
  <p>Here is my code:</p>
  <pre class="lang-py prettyprint-override"><code>from sklearn.linear_model import LinearRegression
  
  X = df[['Date']] 
  y = df['ACP Cleaning'] 
  
  model = LinearRegression()
  model.fit(X, y)
  
  X_predict = [['2021-1-1']]
  y_predict = model.predict(X_predict)
  </code></pre>
  <p>and this is my error:</p>
  <blockquote>
  <p>ValueError: Unable to convert array of bytes/strings into decimal
  numbers with dtype='numeric'</p>
  </blockquote>