plotting_data/questions.rst
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     1 Objective Questions
       
     2 -------------------
       
     3 
       
     4 .. A mininum of 8 questions here (along with answers)
       
     5 
       
     6 1. How do you declare a sequence of numbers in python?
       
     7    Give example .
       
     8    
       
     9    Comma seperated numbers inside two square brackets.
       
    10 
       
    11    seq=[1.5,3.2,8.7]
       
    12 
       
    13 
       
    14 2. Square the following sequence? 
       
    15    
       
    16    distance_values=[2.1,4.6,8.72,9.03].
       
    17 
       
    18    square(distance_values)
       
    19    
       
    20  
       
    21 
       
    22 3. How do you plot the data as points using plot function?
       
    23 
       
    24    By passing an extra parameter '.'.
       
    25 
       
    26 .. #[[Anoop: It can better if asked as, How do you plot the data as
       
    27    points using plot function?]]
       
    28 
       
    29 4. Can you comment about the result of this plot command .
       
    30    plot(x, y,'o')
       
    31 
       
    32 
       
    33    It plots large points.
       
    34 
       
    35 .. #[[Anoop: give an example and ask what it does, like plot(x, y,
       
    36    'o'), that makes the question simple]]
       
    37 
       
    38 5. How do you plot error in Python?
       
    39 
       
    40    Using the function error bar.
       
    41 
       
    42 6. How do I get large red colour dots on a plot?
       
    43 
       
    44    By passing the paramter 'ro'.
       
    45 
       
    46 7. What are the parameters 'xerr' and 'yerr' in errorbar function for?
       
    47    
       
    48    xerr - List of error values of variable on x axis.
       
    49    yerr - List of error values of variable on y ayis.
       
    50    
       
    51 8. How would you plot error bar with a line?
       
    52 
       
    53    The fmt parameter for a line will be '-'.
       
    54 
       
    55 
       
    56 
       
    57 
       
    58 Larger Questions
       
    59 ----------------
       
    60 
       
    61 .. A minimum of 2 questions here (along with answers)
       
    62 
       
    63 1. Plot an errorbar for following experimental data.
       
    64 
       
    65    |  X    |  Y   | Xerr | Yerr  |
       
    66    | 154.9 | 8106 | 8.51 | 165.8 |
       
    67    | 154.3 | 8138 | 8.50 | 166.3 |
       
    68    | 148.7 | 8148 | 7.78 | 161.2 |
       
    69    | 149.6 | 8171 | 7.81 | 162.6 |
       
    70 
       
    71 in red colour with large dots
       
    72 
       
    73 2. List the parameters for errorbar and their function?