関数

Python 入門

Hugo Bowne-Anderson

Data Scientist at DataCamp

関数

  • 新しいことではありません！

  • type()

  • 再利用可能なコード

  • 特定の処理を行う

  • 自分でコードを書く代わりに関数を呼び出す

Python 入門

例

fam = [1.73, 1.68, 1.71, 1.89]
fam

[1.73, 1.68, 1.71, 1.89]

max(fam)

1.89

ch_3_1_slides.012.png

Python 入門

例

fam = [1.73, 1.68, 1.71, 1.89]
fam

[1.73, 1.68, 1.71, 1.89]

max(fam)

1.89

ch_3_1_slides.013.png

Python 入門

例

fam = [1.73, 1.68, 1.71, 1.89]
fam

[1.73, 1.68, 1.71, 1.89]

max(fam)

1.89

ch_3_1_slides.014.png

Python 入門

例

fam = [1.73, 1.68, 1.71, 1.89]
fam

[1.73, 1.68, 1.71, 1.89]

max(fam)

1.89

tallest = max(fam)
tallest

1.89
Python 入門

round()

round(1.68, 1)

1.7

round(1.68)

2

help(round) # Open up documentation

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.
Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.026.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.027.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.028.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.029.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.030.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.031.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.032.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.033.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.034.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.035.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.036.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.

ch_3_1_slides.037.png

Python 入門

round()

help(round)

Help on built-in function round in module builtins:

round(number, ndigits=None)
    Round a number to a given precision in decimal digits.

    The return value is an integer if ndigits is omitted or None. 
    Otherwise the return value has the same type as the number. ndigits may be negative.
  • round(number)
  • round(number, ndigits)
Python 入門

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Python 入門

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Python 入門

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