title: unumpy.uarray -- IndexError: too many indices for array
body: <pre><code>hdudata = pf.open(p_new)
  tbdata = hdudata[1].data
  hdudata.close()
  
  MGII = unumpy.uarray(tbdata['LOGL_BROAD_MGII'],abs(tbdata['LOGL_BROAD_MGII_ERR']))
  
  lum = unumpy.uarray(1.0 , 1.0)
  
  for i in range (len(tbdata)):
      if (tbdata['LOGL_BROAD_MGII'][i] != 0.0):
          a = unumpy.nominal_values(unumpy.pow(10 , MGII[i])/34.0) 
          b = unumpy.std_devs(unumpy.pow(10 , MGII[i])/34.0)
          lum[i] =+ ufloat(a[0] , b[0])
          print 'MGII'
          print unumpy.pow(10 , MGII[i])/34.0        
          print lum[i]
  </code></pre>
  
  <p>I get that error</p>
  
  <pre><code>IndexError                                Traceback (most recent call last)
  C:\Users\Denny\Documents\Denny\Unimib\Tesina_triennale\Programma_fit\Fit_lin_log.py in &lt;module&gt;()
       72         a = unumpy.nominal_values(unumpy.pow(10 , MGII[i])/34.0)
       73         b = unumpy.std_devs(unumpy.pow(10 , MGII[i])/34.0)
  ---&gt; 74         lum[i] =+ ufloat(a[0] , b[0])
       75         print 'MGII'
       76         print unumpy.pow(10 , MGII[i])/34.0
  
  IndexError: too many indices for array 
  </code></pre>
  
  <p>I inserted a lot of print for studies the problem.
  The function of unumpy give a array type object.</p>