title: Python Plotly express x axis values
body: <p>I have been trying to create a graph using plotly express. however, I haven't been able to put the values for the x axis correctly. Here is the data frame I am using:</p>
  <p><a href="https://i.stack.imgur.com/gtCRm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gtCRm.png" alt="df" /></a></p>
  <p>I need to plot 'Mean Train Score' vs ' Hidden Layer Size' keeping 'Activation Function' and 'Learning Rate' Constant, and this is the code I am using to plot it:</p>
  <pre><code>[1] df['No. of Neurons in Two Hidden Layers'] = [t[0] for t in 
                                                  zip(df['Hidden Layer Size'])]
  
  
  [2] df['Alpha, Activation'] = [f'{alpha} {activation}' for alpha, activation in 
                                zip(df['Learning Rate'], df2['Activation Function'])]
  
  [3] fig = px.line(df, x='No. of Neurons in Two Hidden Layers', y=&quot;Mean Train 
                 Score&quot;, color='Alpha, Activation', symbol = 'Alpha, Activation', title 
                 = 'Mean Train Score vs. No. of Hidden Layer Size' )
      fig.update_layout(
      title = {
               'y':0.9,
               'x':0.5,
               'xanchor': 'center',
               'yanchor': 'top'
              })
      fig.show()
  </code></pre>
  <p>I cannot display both of the values for the 'Hidden Layer Size' column on the x axis
  <a href="https://i.stack.imgur.com/qjKGB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qjKGB.png" alt="Graph" /></a></p>
  <p>I need each value of 'Mean Train Score' to have its corresponding Hidden Layer value as (#,#).</p>
  <p>What can I do?</p>