Statistics with Pandas DataFrames
The Pandas DataFrame has a dozen statistical methods. The following table lists these methods, along with a short description of each:
| 
 Method  | 
 Description  | 
| 
 
  | 
 This method returns a small table with descriptive statistics.  | 
| 
 
  | 
 This method returns the number of non-NaN items.  | 
| 
 
  | 
 This method calculates the mean absolute deviation, which is a robust measure similar to the standard deviation.  | 
| 
 
  | 
 This method returns the median. This is equivalent to the value at the 50th percentile.  | 
| 
 
  | 
 This method returns the lowest value.  | 
| 
 
  | 
 This method returns the highest value.  | 
| 
 
  | 
 This method returns the mode, which is the most frequently occurring value.  | 
| 
 
  | 
 This method returns the standard deviation, which measures dispersion. It is the square root of the variance.  | 
| 
 
  | 
 This method returns the variance.  | 
| 
 
  | 
 This method returns skewness. Skewness is indicative of the distribution symmetry.  | 
| 
 
  | 
 This method returns...  |