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#+TITLE: Other type of plots
#+AUTHOR:    FOSSEE
#+EMAIL:     
#+DATE:    

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#+LANGUAGE:  en
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* Outline
  - Scatter plot
  - Pie chart
  - Bar chart
  - Log-log Plot
  - ~matplotlib~ help
* Exercise 1: Scatter plot
  Plot a scatter plot showing the percentage profit of Company A from the year 2000
  to 2010. The data for the same is available in the file ~company-a-data.txt~.
* ~scatter()~ function
  - /Syntax :/ scatter(x,y)
    - x, a sequence of data
    - y, a sequence of data, the same length of x
  : In []: scatter(year, profit)
* Exercise 2: Scatter plot
  Plot a scatter plot of the same data in ~company-a-data.txt~ with red diamond markers.
  : 
  *Clue* - /try scatter? in your ipython interpreter/
* Pie chart
  Pie chart - a circle graph divided into sectors, illustrating proportion. 
* Exercise 3: Pie chart
  Plot a pie chart representing the profit percentage of company A, with the data 
  from the file ~company-a-data.txt~.
  : 
  /(we can reuse the data in lists year and profit)/
* ~pie()~ function
  - /Syntax :/ pie(values, labels=labels)
    - values, the data to be plotted
    - labels, the label for each wedge in the pie chart
  : In []: pie(profit, labels=year)
* Exercise 4: Pie chart
  Plot a pie chart with the same data with colors for each wedges as white, red, 
  magenta, yellow, blue, green, cyan, yellow, magenta, and blue.
  : 
  *Clue* - /try pie? in your ipython interpreter/
* Bar chart
  Bar chart - a chart with rectangular bars with lengths proportional 
  to the values that they represent.
* Exercise 5: Bar chart
  Plot a bar chart representing the profit percentage of company A, with the data 
  from the file ~company-a-data.txt~.
  : 
  /(we can reuse the data in lists year and profit)/
* ~bar()~ function
  - /Syntax :/ bar(x, y)
    - x, a sequence of data
    - y, a sequence of data, the same length of x
  : In []: bar(year, profit)
* Exercise 6: Bar chart
  Plot a bar chart which is not filled and which is hatched with 
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    $45^o$
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  slanting lines as shown in the image. The data for the chart may be
  obtained from the file ~company-a-data.txt~.
  #+begin_latex
   \begin{center}
      \includegraphics[scale=0.3]{bar-chart-hatch}    
    \end{center}
  #+end_latex
  *Clue* - /try bar? in your ipython interpreter/
* Log-log graph
  - Log-log graph
    - 2-dimensional graph.
    - uses logarithmic scales on both axes.
    - graph appears as straight line due to non-linear scaling.
* Exercise 7:
  Plot a log-log chart of 
  #+begin_latex
    $y = 5x^3$
  #+end_latex
  for x from 1-20.
* ~loglog()~ function
  - /Syntax :/ loglog(x, y)
    - x, a sequence of data
    - y, a sequence of data, the same length of x
  : In []: loglog(x, y)
* Getting help on ~matplotlib~
  - Help 
    - [[matplotlib.sourceforge.net/contents.html]]
  - More plots
    - [[matplotlib.sourceforge.net/users/screenshots.html]]
    - [[matplotlib.sourceforge.net/gallery.html]]

* Summary
  - Scatter plot (~scatter()~)
  - Pie chart (~pie()~)
  - Bar chart (~bar()~)
  - Log-log plot (~loglog()~)
  - ~matplotlib~ online help
* Thank you!
#+begin_latex
  \begin{block}{}
  \begin{center}
  This spoken tutorial has been produced by the
  \textcolor{blue}{FOSSEE} team, which is funded by the 
  \end{center}
  \begin{center}
    \textcolor{blue}{National Mission on Education through \\
      Information \& Communication Technology \\ 
      MHRD, Govt. of India}.
  \end{center}  
  \end{block}
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