title: Single variable category scatter plot pandas
body: <p>Is It possible to plot single value as scatter plot? 
  I can very well plot it in line by getting the ccdfs with markers but I want to know if any alternative is available? </p>
  
  <p>Input: </p>
  
  <p>Input 1</p>
  
  <pre><code>tweetcricscore 51 high active
  </code></pre>
  
  <p>Input 2</p>
  
  <pre><code>tweetcricscore 46 event based
  tweetcricscore 12 event based
  tweetcricscore 46 event based
  </code></pre>
  
  <p>Input 3</p>
  
  <pre><code>tweetcricscore 1 viewers 
  tweetcricscore 178 viewers
  </code></pre>
  
  <p>Input 4</p>
  
  <pre><code>tweetcricscore 46 situational
  tweetcricscore 23 situational
  tweetcricscore 1 situational
  tweetcricscore 8 situational
  tweetcricscore 56 situational
  </code></pre>
  
  <p>I can very much write scatter plot code with <code>bokeh</code> and <code>pandas</code> using <code>x</code> and <code>y</code> values. But in case of single value ?</p>
  
  <p>When all the inputs are merged as one input and are to be grouped by <code>col[3]</code>, values are <code>col[2]</code>. </p>
  
  <p><strong>The code below is for data set with 2 variables</strong></p>
  
  <pre><code>import numpy as np
  import matplotlib.pyplot as plt
  from pylab import*
  import math
  from matplotlib.ticker import LogLocator
  import pandas as pd
  from bokeh.charts import Scatter, output_file, show
  
  df = pd.read_csv('input.csv', header = None)
  
  df.columns = ['col1','col2','col3','col4']
  
  scatter = Scatter( df, x='col2', y='col3', color='col4', marker='col4', title='plot', legend=True)
  
  output_file('output.html', title='output')
  
  show(scatter)
  </code></pre>
  
  <p>Sample Output </p>
  
  <p><a href="https://i.stack.imgur.com/akQlX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/akQlX.png" alt="enter image description here"></a></p>