cudf.core.column.string.StringMethods.isfloat#

StringMethods.isfloat() → SeriesOrIndex#

Check whether all characters in each string form floating value.

If a string has zero characters, False is returned for that check.

Returns

Series or Index of bool: Series or Index of boolean values with the same length as the original Series/Index.

See also

isalnum: Check whether all characters are alphanumeric.
isalpha: Check whether all characters are alphabetic.
isdecimal: Check whether all characters are decimal.
isdigit: Check whether all characters are digits.
isinteger: Check whether all characters are integer.
isnumeric: Check whether all characters are numeric.
islower: Check whether all characters are lowercase.
isspace: Check whether all characters are whitespace.
isupper: Check whether all characters are uppercase.

Examples

>>> import cudf
>>> s = cudf.Series(["1.1", "0.123213", "+0.123", "-100.0001", "234",
... "3-"])
>>> s.str.isfloat()
0     True
1     True
2     True
3     True
4     True
5    False
dtype: bool
>>> s = cudf.Series(["this is plain text", "\t\n", "9.9", "9.9.9"])
>>> s.str.isfloat()
0    False
1    False
2     True
3    False
dtype: bool