Slumptal

Intermediate Python

Hugo Bowne-Anderson

Data Scientist at DataCamp

Intermediate Python

Intermediate Python

Intermediate Python

Intermediate Python

Intermediate Python

  • Kan inte gå under steg 0
  • 0,1 % chans att ramla nerför trappan
  • Vad sägs om detta: du når steg 60
Intermediate Python

Hur löser man det?

  • Analytiskt
  • Simulera processen
    • Hackarstatistik!
Intermediate Python

Slumptalsgeneratorer

import numpy as np
np.random.rand()      # Pseudo-random numbers

0.9535543896720104    # Mathematical formula

np.random.seed(123)    # Starting from a seed
np.random.rand()

0.6964691855978616

np.random.rand()

0.28613933495037946
Intermediate Python

Slumptalsgeneratorer

np.random.seed(123)
np.random.rand()

0.696469185597861    # Same seed: same random numbers!

np.random.rand()     # Ensures "reproducibility"

0.28613933495037946
Intermediate Python

Myntkast

game.py

import numpy as np

np.random.seed(123)

coin = np.random.randint(0,2)  # Randomly generate 0 or 1

print(coin)

0
Intermediate Python

Myntkast

game.py

import numpy as np
np.random.seed(123)
coin = np.random.randint(0,2)  # Randomly generate 0 or 1
print(coin)

if coin == 0:
    print("heads")

else:
    print("tails")

0
heads
Intermediate Python

Nu kör vi en övning!

Intermediate Python

Preparing Video For Download...