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#+TITLE: Statistics
#+AUTHOR: FOSSEE
#+DATE
#+EMAIL:     info@fossee.in

#+DESCRIPTION: 
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#+LANGUAGE:  en
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* Outline 
 - Doing statistical operations in Python  
   - Summing set of numbers
   - Finding there mean
   - Finding there Median
   - Finding there Standard Deviation 

* Data set
  - A;015163;JOSEPH RAJ S;083;042;47;00;72;244;;; 

  The following are the fields in any given line.
   - Region Code which is 'A'
   - Roll Number 015163
   - Name JOSEPH RAJ S
   - Marks of 5 subjects: -- English 083 -- 
     Hindi 042 -- Maths 47 --
     Science 35 -- Social 72
   - Total marks 244

* Question
  - In the given file football.txt at path /home/fossee/football.txt , 
    one column is player name,second is goals at home 
    and third goals away.
    - Find the total goals for each player
    - Mean home and away goals
    - Standard deviation of home and away goals 

* Solution
#+begin_src python
  L=loadtxt('/home/amit/football.txt',usecols=(1,2),
            delimiter=',')
  sum(L,1)
  mean(L,0)
  std(L,0)
#+end_src python

* Summary 
  - sum
  - mean
  - median
  - std