Series.str.
pad
Pad strings in the Series/Index up to width.
width (int) – Minimum width of resulting string; additional characters will be filled with character defined in fillchar.
side ({'left', 'right', 'both'}, default 'left') – Side from which to fill resulting string.
fillchar (str, default ' ') – Additional character for filling, default is whitespace.
Returns Series or Index with minimum number of char in object.
Series or Index of object
参见
Series.str.rjust
Fills the left side of strings with an arbitrary character. Equivalent to Series.str.pad(side='left').
Series.str.pad(side='left')
Series.str.ljust
Fills the right side of strings with an arbitrary character. Equivalent to Series.str.pad(side='right').
Series.str.pad(side='right')
Series.str.center
Fills both sides of strings with an arbitrary character. Equivalent to Series.str.pad(side='both').
Series.str.pad(side='both')
Series.str.zfill
Pad strings in the Series/Index by prepending ‘0’ character. Equivalent to Series.str.pad(side='left', fillchar='0').
Series.str.pad(side='left', fillchar='0')
实际案例
>>> import mars.dataframe as md >>> s = md.Series(["caribou", "tiger"]) >>> s.execute() 0 caribou 1 tiger dtype: object
>>> s.str.pad(width=10).execute() 0 caribou 1 tiger dtype: object
>>> s.str.pad(width=10, side='right', fillchar='-').execute() 0 caribou--- 1 tiger----- dtype: object
>>> s.str.pad(width=10, side='both', fillchar='-').execute() 0 -caribou-- 1 --tiger--- dtype: object