title: statsmodels Error Message: "ValueError: v must be > 1 when p >= .9"
body: <p>I am trying to perform multiple sample comparison and Tukey HSD using the statsmodels module, but I keep getting this error message, "ValueError: v must be > 1 when p >= .9". I have tried looking this up on the internet for a possible solution, but no avail. Any chance anyone familiar with this module could help me out decipher what I am doing wrong to prompt this error. I use Python version 2.7x and spyder. Below is a sample of my data and the print statement. Thanks!</p>
  
  <pre><code>import numpy as np
  from statsmodels.stats.multicomp import (pairwise_tukeyhsd,MultiComparison)
  
  ###--- Here are the data I am using:
  data1 = np.array([ 1,     1,     1,     1,   976,    24,     1,     1,    15, 15780])
  data2 = np.array(['lau15', 'gr17', 'fri26', 'bays29', 'dantzig4', 'KAT38','HARV50', 'HARV10', 'HARV20', 'HARV41'], dtype='|S8')
  
  ####--- Here's my print statement code: 
  print pairwise_tukeyhsd(data1, data2, alpha=0.05)
  </code></pre>