peroon

# CSVからの読みこみ
g = np.genfromtxt("gen.csv",delimiter=",")
print g

# CSV出力
np.savetxt("saved.csv", c, delimiter=",", fmt="%.2f")

peroon

# -*- coding: utf-8 -*-
import os, sys, unittest
import math

class Sample():
    def sigmoid(self, v):
        return 1.0 / (1 + math.e**(-v))

class SampleTest(unittest.TestCase):
    def setUp(self):

peroon

list0 = []
list1 = [1,2,3]

if list0:
    print 'list0' #長さ0なのでFalse扱いで実行されない

if list1:
    print 'list1'

peroon

def bubble_sort(arr):
    n = len(arr)
    total_swap = 0
    for i in xrange(n):
        numberOfSwaps = 0
        for j in xrange(n - 1):
            if arr[j] > arr[j + 1]:
                arr[j], arr[j + 1] = arr[j + 1], arr[j]
                numberOfSwaps += 1
                total_swap += 1

peroon

A = set([1,2,3])
B = set([2,3,4])
A ^ B
=> set([1, 4])

peroon

def test():
    A = [5,2,4,6,1,3]
    print(A)

    for i in range(1, len(A)):
        print('A', A)
        v = A[i]

        # search insert position
        j = i - 1

peroon

def call():
  print('call')

for i in range(0, N):
  for j in range(i+1, N):
    call()
    
# Q. callは何回呼ばれるか？
# A. N-1, N-2, ..., 1の和なので、(N-1) * N / 2

peroon

a = 5

b = a / 2
print(b) #=> 2.5

c = a >> 1
print(c) #=> 2

peroon

print(100 / 3) # 33.333333
print(100 // 3) # 33

peroon

l = ['a', 'b', 'c']
for i, c in enumerate(l, start=1):
    print(i, c)