jamestha3d

randoms

May 16th, 2021
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  1. import random
  2. import math
  3.  
  4. #RANDOMLY GENERATE 100 INTEGERS AND STORE IN X
  5. #we use the random function to generate these numbers and append them to the empty array x
  6. x = []
  7. for i in range(10000):
  8.     x.append(random.randint(1, 200))
  9.  
  10. #SAMPLE 100 NUMBERS RANDOMLY FROM X
  11. #x has 10,000 items. indexed at 0 - 9,999. to sample randomly from x, we just have to
  12. #pick from these numbers randomly using our random generator to generate an index.
  13.  
  14. meen = []
  15. for i in range(50000):
  16.     mean_array = []
  17.     loop_index = []
  18.     #sample function
  19.     for i in range(100):
  20.         #get random index by randomly going through the indices
  21.         random_index = random.randint(0, 9999)
  22.  
  23.         #do this continuously until you get random index not seen in previous iteration
  24.         while random_index in loop_index:
  25.             random_index = random.randint(0,9999)
  26.         #store random index so that we can check on next iteration if same index is generated again.
  27.         loop_index.append(random_index)
  28.  
  29.         #save these indices in mean array
  30.         mean_array.append(x[random_index])
  31.        
  32.     #remember to compute mean
  33.     total = 0
  34.     for i in range(len(mean_array)):
  35.         total += mean_array[i]
  36.     avg = total/len(mean_array)
  37.     meen.append(avg)
  38. meen.sort()
  39. #print(meen)
  40.  
  41. frq = [0]
  42.  
  43. #we are dealing with special characters between 85 - 115
  44. #we will go through the array called meen
  45. #each character we see, we will check which number it is. and then we will count the frequency.
  46.  
  47. #check the numbers. if number less than 85 or greater than 115, ignore.
  48. #if number is between 85 - 115 do the following:
  49. #if number is 85.xx, we will round up to 85.
  50. #we will count number and all other 85.xx numbers.
  51. #once we hit 86, we will start new count.
  52.  
  53. frq_index = 0
  54. last_seen = 85
  55. for i in range(50000):
  56.    
  57.     if meen[i] >= 85 and meen[i] <= 116:
  58.         num = math.floor(meen[i])
  59.         #check if number has been seen before.
  60.         if num == last_seen:
  61.             #this means the number has been seen before.
  62.             frq[frq_index] += 1
  63.            
  64.         else:
  65.             #number has not been seen before
  66.             #determine the difference between this number and last seen
  67.             #know how many zeroes to add
  68.             zeroes = num - last_seen
  69.             for i in range(zeroes):
  70.                 frq.append(0)
  71.             frq_index += zeroes
  72.             last_seen += zeroes
  73.             frq[frq_index] += 1
  74.  
  75. print(frq)
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