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cuDF User Guide
cudf.pandas
Polars GPU engine
libcudf documentation
Developer Guide
GitHub
Twitter
章节导航
API reference
Series
cudf.core.series.DatetimeProperties.year
cudf.core.series.DatetimeProperties.month
cudf.core.series.DatetimeProperties.day
cudf.core.series.DatetimeProperties.hour
cudf.core.series.DatetimeProperties.minute
cudf.core.series.DatetimeProperties.second
cudf.core.series.DatetimeProperties.microsecond
cudf.core.series.DatetimeProperties.nanosecond
cudf.core.series.DatetimeProperties.dayofweek
cudf.core.series.DatetimeProperties.weekday
cudf.core.series.DatetimeProperties.dayofyear
cudf.core.series.DatetimeProperties.day_of_year
cudf.core.series.DatetimeProperties.quarter
cudf.core.series.DatetimeProperties.is_month_start
cudf.core.series.DatetimeProperties.is_month_end
cudf.core.series.DatetimeProperties.is_quarter_start
cudf.core.series.DatetimeProperties.is_quarter_end
cudf.core.series.DatetimeProperties.is_year_start
cudf.core.series.DatetimeProperties.is_year_end
cudf.core.series.DatetimeProperties.is_leap_year
cudf.core.series.DatetimeProperties.days_in_month
cudf.core.column.string.StringMethods.byte_count
cudf.core.column.string.StringMethods.capitalize
cudf.core.column.string.StringMethods.cat
cudf.core.column.string.StringMethods.center
cudf.core.column.string.StringMethods.character_ngrams
cudf.core.column.string.StringMethods.character_tokenize
cudf.core.column.string.StringMethods.code_points
cudf.core.column.string.StringMethods.contains
cudf.core.column.string.StringMethods.count
cudf.core.column.string.StringMethods.detokenize
cudf.core.column.string.StringMethods.edit_distance
cudf.core.column.string.StringMethods.edit_distance_matrix
cudf.core.column.string.StringMethods.endswith
cudf.core.column.string.StringMethods.extract
cudf.core.column.string.StringMethods.filter_alphanum
cudf.core.column.string.StringMethods.filter_characters
cudf.core.column.string.StringMethods.filter_tokens
cudf.core.column.string.StringMethods.find
cudf.core.column.string.StringMethods.findall
cudf.core.column.string.StringMethods.find_multiple
cudf.core.column.string.StringMethods.get
cudf.core.column.string.StringMethods.get_json_object
cudf.core.column.string.StringMethods.hex_to_int
cudf.core.column.string.StringMethods.htoi
cudf.core.column.string.StringMethods.index
cudf.core.column.string.StringMethods.insert
cudf.core.column.string.StringMethods.ip2int
cudf.core.column.string.StringMethods.ip_to_int
cudf.core.column.string.StringMethods.is_consonant
cudf.core.column.string.StringMethods.is_vowel
cudf.core.column.string.StringMethods.isalnum
cudf.core.column.string.StringMethods.isalpha
cudf.core.column.string.StringMethods.isdecimal
cudf.core.column.string.StringMethods.isdigit
cudf.core.column.string.StringMethods.isempty
cudf.core.column.string.StringMethods.isfloat
cudf.core.column.string.StringMethods.ishex
cudf.core.column.string.StringMethods.isinteger
cudf.core.column.string.StringMethods.isipv4
cudf.core.column.string.StringMethods.isspace
cudf.core.column.string.StringMethods.islower
cudf.core.column.string.StringMethods.isnumeric
cudf.core.column.string.StringMethods.isupper
cudf.core.column.string.StringMethods.istimestamp
cudf.core.column.string.StringMethods.istitle
cudf.core.column.string.StringMethods.jaccard_index
cudf.core.column.string.StringMethods.join
cudf.core.column.string.StringMethods.len
cudf.core.column.string.StringMethods.like
cudf.core.column.string.StringMethods.ljust
cudf.core.column.string.StringMethods.lower
cudf.core.column.string.StringMethods.lstrip
cudf.core.column.string.StringMethods.match
cudf.core.column.string.StringMethods.minhash
cudf.core.column.string.StringMethods.ngrams
cudf.core.column.string.StringMethods.ngrams_tokenize
cudf.core.column.string.StringMethods.normalize_characters
cudf.core.column.string.StringMethods.normalize_spaces
cudf.core.column.string.StringMethods.pad
cudf.core.column.string.StringMethods.partition
cudf.core.column.string.StringMethods.porter_stemmer_measure
cudf.core.column.string.StringMethods.repeat
cudf.core.column.string.StringMethods.removeprefix
cudf.core.column.string.StringMethods.removesuffix
cudf.core.column.string.StringMethods.replace
cudf.core.column.string.StringMethods.replace_tokens
cudf.core.column.string.StringMethods.replace_with_backrefs
cudf.core.column.string.StringMethods.rfind
cudf.core.column.string.StringMethods.rindex
cudf.core.column.string.StringMethods.rjust
cudf.core.column.string.StringMethods.rpartition
cudf.core.column.string.StringMethods.rsplit
cudf.core.column.string.StringMethods.rstrip
cudf.core.column.string.StringMethods.slice
cudf.core.column.string.StringMethods.slice_from
cudf.core.column.string.StringMethods.slice_replace
cudf.core.column.string.StringMethods.split
cudf.core.column.string.StringMethods.startswith
cudf.core.column.string.StringMethods.strip
cudf.core.column.string.StringMethods.swapcase
cudf.core.column.string.StringMethods.title
cudf.core.column.string.StringMethods.token_count
cudf.core.column.string.StringMethods.tokenize
cudf.core.column.string.StringMethods.translate
cudf.core.column.string.StringMethods.upper
cudf.core.column.string.StringMethods.url_decode
cudf.core.column.string.StringMethods.url_encode
cudf.core.column.string.StringMethods.wrap
cudf.core.column.string.StringMethods.zfill
cudf.core.column.categorical.CategoricalAccessor.categories
cudf.core.column.categorical.CategoricalAccessor.ordered
cudf.core.column.categorical.CategoricalAccessor.codes
cudf.core.column.categorical.CategoricalAccessor.reorder_categories
cudf.core.column.categorical.CategoricalAccessor.add_categories
cudf.core.column.categorical.CategoricalAccessor.remove_categories
cudf.core.column.categorical.CategoricalAccessor.set_categories
cudf.core.column.categorical.CategoricalAccessor.as_ordered
cudf.core.column.categorical.CategoricalAccessor.as_unordered
cudf.core.column.lists.ListMethods.astype
cudf.core.column.lists.ListMethods.concat
cudf.core.column.lists.ListMethods.contains
cudf.core.column.lists.ListMethods.index
cudf.core.column.lists.ListMethods.get
cudf.core.column.lists.ListMethods.leaves
cudf.core.column.lists.ListMethods.len
cudf.core.column.lists.ListMethods.sort_values
cudf.core.column.lists.ListMethods.take
cudf.core.column.lists.ListMethods.unique
cudf.core.column.struct.StructMethods.field
cudf.core.column.struct.StructMethods.explode
DataFrame
cudf.DataFrame.dtypes
cudf.DataFrame.info
cudf.DataFrame.select_dtypes
cudf.DataFrame.values
cudf.DataFrame.ndim
cudf.DataFrame.size
cudf.DataFrame.shape
cudf.DataFrame.memory_usage
cudf.DataFrame.empty
Index objects
cudf.Index.dtype
cudf.Index.duplicated
cudf.Index.empty
cudf.Index.has_duplicates
cudf.Index.hasnans
cudf.Index.is_monotonic_increasing
cudf.Index.is_monotonic_decreasing
cudf.Index.is_unique
cudf.Index.name
cudf.Index.names
cudf.Index.ndim
cudf.Index.nlevels
cudf.Index.shape
cudf.Index.size
cudf.Index.values
cudf.CategoricalIndex.codes
cudf.CategoricalIndex.categories
cudf.IntervalIndex.from_breaks
cudf.IntervalIndex.values
cudf.IntervalIndex.get_indexer
cudf.IntervalIndex.get_loc
cudf.MultiIndex.from_arrays
cudf.MultiIndex.from_tuples
cudf.MultiIndex.from_product
cudf.MultiIndex.from_frame
cudf.MultiIndex.from_arrow
cudf.DatetimeIndex.year
cudf.DatetimeIndex.month
cudf.DatetimeIndex.day
cudf.DatetimeIndex.hour
cudf.DatetimeIndex.minute
cudf.DatetimeIndex.second
cudf.DatetimeIndex.microsecond
cudf.DatetimeIndex.nanosecond
cudf.DatetimeIndex.day_of_year
cudf.DatetimeIndex.dayofyear
cudf.DatetimeIndex.dayofweek
cudf.DatetimeIndex.weekday
cudf.DatetimeIndex.quarter
cudf.DatetimeIndex.is_leap_year
cudf.DatetimeIndex.isocalendar
cudf.TimedeltaIndex.days
cudf.TimedeltaIndex.seconds
cudf.TimedeltaIndex.microseconds
cudf.TimedeltaIndex.nanoseconds
cudf.TimedeltaIndex.components
cudf.TimedeltaIndex.inferred_freq
GroupBy
cudf.Grouper
cudf.core.groupby.groupby.DataFrameGroupBy.bfill
cudf.core.groupby.groupby.DataFrameGroupBy.corr
cudf.core.groupby.groupby.DataFrameGroupBy.count
cudf.core.groupby.groupby.DataFrameGroupBy.cumcount
cudf.core.groupby.groupby.DataFrameGroupBy.cummax
cudf.core.groupby.groupby.DataFrameGroupBy.cummin
cudf.core.groupby.groupby.DataFrameGroupBy.cumsum
cudf.core.groupby.groupby.DataFrameGroupBy.describe
cudf.core.groupby.groupby.DataFrameGroupBy.diff
cudf.core.groupby.groupby.DataFrameGroupBy.ffill
cudf.core.groupby.groupby.DataFrameGroupBy.fillna
cudf.core.groupby.groupby.DataFrameGroupBy.idxmax
cudf.core.groupby.groupby.DataFrameGroupBy.idxmin
cudf.core.groupby.groupby.DataFrameGroupBy.nunique
cudf.core.groupby.groupby.DataFrameGroupBy.quantile
cudf.core.groupby.groupby.DataFrameGroupBy.shift
cudf.core.groupby.groupby.DataFrameGroupBy.size
通用函数
通用工具
Window
输入/输出
TokenizeVocabulary
字符串处理
cudf.core.column.string.StringMethods.byte_count
cudf.core.column.string.StringMethods.capitalize
cudf.core.column.string.StringMethods.cat
cudf.core.column.string.StringMethods.center
cudf.core.column.string.StringMethods.character_ngrams
cudf.core.column.string.StringMethods.character_tokenize
cudf.core.column.string.StringMethods.code_points
cudf.core.column.string.StringMethods.contains
cudf.core.column.string.StringMethods.count
cudf.core.column.string.StringMethods.detokenize
cudf.core.column.string.StringMethods.edit_distance
cudf.core.column.string.StringMethods.edit_distance_matrix
cudf.core.column.string.StringMethods.endswith
cudf.core.column.string.StringMethods.extract
cudf.core.column.string.StringMethods.filter_alphanum
cudf.core.column.string.StringMethods.filter_characters
cudf.core.column.string.StringMethods.filter_tokens
cudf.core.column.string.StringMethods.find
cudf.core.column.string.StringMethods.findall
cudf.core.column.string.StringMethods.find_multiple
cudf.core.column.string.StringMethods.get
cudf.core.column.string.StringMethods.get_json_object
cudf.core.column.string.StringMethods.hex_to_int
cudf.core.column.string.StringMethods.htoi
cudf.core.column.string.StringMethods.index
cudf.core.column.string.StringMethods.insert
cudf.core.column.string.StringMethods.ip2int
cudf.core.column.string.StringMethods.ip_to_int
cudf.core.column.string.StringMethods.is_consonant
cudf.core.column.string.StringMethods.is_vowel
cudf.core.column.string.StringMethods.isalnum
cudf.core.column.string.StringMethods.isalpha
cudf.core.column.string.StringMethods.isdecimal
cudf.core.column.string.StringMethods.isdigit
cudf.core.column.string.StringMethods.isempty
cudf.core.column.string.StringMethods.isfloat
cudf.core.column.string.StringMethods.ishex
cudf.core.column.string.StringMethods.isinteger
cudf.core.column.string.StringMethods.isipv4
cudf.core.column.string.StringMethods.isspace
cudf.core.column.string.StringMethods.islower
cudf.core.column.string.StringMethods.isnumeric
cudf.core.column.string.StringMethods.isupper
cudf.core.column.string.StringMethods.istimestamp
cudf.core.column.string.StringMethods.istitle
cudf.core.column.string.StringMethods.jaccard_index
cudf.core.column.string.StringMethods.join
cudf.core.column.string.StringMethods.len
cudf.core.column.string.StringMethods.like
cudf.core.column.string.StringMethods.ljust
cudf.core.column.string.StringMethods.lower
cudf.core.column.string.StringMethods.lstrip
cudf.core.column.string.StringMethods.match
cudf.core.column.string.StringMethods.minhash
cudf.core.column.string.StringMethods.ngrams
cudf.core.column.string.StringMethods.ngrams_tokenize
cudf.core.column.string.StringMethods.normalize_characters
cudf.core.column.string.StringMethods.normalize_spaces
cudf.core.column.string.StringMethods.pad
cudf.core.column.string.StringMethods.partition
cudf.core.column.string.StringMethods.porter_stemmer_measure
cudf.core.column.string.StringMethods.repeat
cudf.core.column.string.StringMethods.removeprefix
cudf.core.column.string.StringMethods.removesuffix
cudf.core.column.string.StringMethods.replace
cudf.core.column.string.StringMethods.replace_tokens
cudf.core.column.string.StringMethods.replace_with_backrefs
cudf.core.column.string.StringMethods.rfind
cudf.core.column.string.StringMethods.rindex
cudf.core.column.string.StringMethods.rjust
cudf.core.column.string.StringMethods.rpartition
cudf.core.column.string.StringMethods.rsplit
cudf.core.column.string.StringMethods.rstrip
cudf.core.column.string.StringMethods.slice
cudf.core.column.string.StringMethods.slice_from
cudf.core.column.string.StringMethods.slice_replace
cudf.core.column.string.StringMethods.split
cudf.core.column.string.StringMethods.startswith
cudf.core.column.string.StringMethods.strip
cudf.core.column.string.StringMethods.swapcase
cudf.core.column.string.StringMethods.title
cudf.core.column.string.StringMethods.token_count
cudf.core.column.string.StringMethods.tokenize
cudf.core.column.string.StringMethods.translate
cudf.core.column.string.StringMethods.upper
cudf.core.column.string.StringMethods.url_decode
cudf.core.column.string.StringMethods.url_encode
cudf.core.column.string.StringMethods.wrap
cudf.core.column.string.StringMethods.zfill
列表处理
cudf.core.column.lists.ListMethods.astype
cudf.core.column.lists.ListMethods.concat
cudf.core.column.lists.ListMethods.contains
cudf.core.column.lists.ListMethods.index
cudf.core.column.lists.ListMethods.get
cudf.core.column.lists.ListMethods.leaves
cudf.core.column.lists.ListMethods.len
cudf.core.column.lists.ListMethods.sort_values
cudf.core.column.lists.ListMethods.take
cudf.core.column.lists.ListMethods.unique
结构处理
cudf.core.column.struct.StructMethods.field
cudf.core.column.struct.StructMethods.explode
选项和设置
扩展数据类型
cudf.core.dtypes.CategoricalDtype.categories
cudf.core.dtypes.CategoricalDtype.construct_from_string
cudf.core.dtypes.CategoricalDtype.deserialize
cudf.core.dtypes.CategoricalDtype.device_deserialize
cudf.core.dtypes.CategoricalDtype.device_serialize
cudf.core.dtypes.CategoricalDtype.from_pandas
cudf.core.dtypes.CategoricalDtype.host_deserialize
cudf.core.dtypes.CategoricalDtype.host_serialize
cudf.core.dtypes.CategoricalDtype.is_dtype
cudf.core.dtypes.CategoricalDtype.name
cudf.core.dtypes.CategoricalDtype.ordered
cudf.core.dtypes.CategoricalDtype.serialize
cudf.core.dtypes.CategoricalDtype.str
cudf.core.dtypes.CategoricalDtype.to_pandas
cudf.core.dtypes.CategoricalDtype.type
cudf.core.dtypes.Decimal32Dtype.ITEMSIZE
cudf.core.dtypes.Decimal32Dtype.MAX_PRECISION
cudf.core.dtypes.Decimal32Dtype.deserialize
cudf.core.dtypes.Decimal32Dtype.device_deserialize
cudf.core.dtypes.Decimal32Dtype.device_serialize
cudf.core.dtypes.Decimal32Dtype.from_arrow
cudf.core.dtypes.Decimal32Dtype.host_deserialize
cudf.core.dtypes.Decimal32Dtype.host_serialize
cudf.core.dtypes.Decimal32Dtype.is_dtype
cudf.core.dtypes.Decimal32Dtype.itemsize
cudf.core.dtypes.Decimal32Dtype.precision
cudf.core.dtypes.Decimal32Dtype.scale
cudf.core.dtypes.Decimal32Dtype.serialize
cudf.core.dtypes.Decimal32Dtype.str
cudf.core.dtypes.Decimal32Dtype.to_arrow
cudf.core.dtypes.Decimal64Dtype.ITEMSIZE
cudf.core.dtypes.Decimal64Dtype.MAX_PRECISION
cudf.core.dtypes.Decimal64Dtype.deserialize
cudf.core.dtypes.Decimal64Dtype.device_deserialize
cudf.core.dtypes.Decimal64Dtype.device_serialize
cudf.core.dtypes.Decimal64Dtype.from_arrow
cudf.core.dtypes.Decimal64Dtype.host_deserialize
cudf.core.dtypes.Decimal64Dtype.host_serialize
cudf.core.dtypes.Decimal64Dtype.is_dtype
cudf.core.dtypes.Decimal64Dtype.itemsize
cudf.core.dtypes.Decimal64Dtype.precision
cudf.core.dtypes.Decimal64Dtype.scale
cudf.core.dtypes.Decimal64Dtype.serialize
cudf.core.dtypes.Decimal64Dtype.str
cudf.core.dtypes.Decimal64Dtype.to_arrow
cudf.core.dtypes.Decimal128Dtype.ITEMSIZE
cudf.core.dtypes.Decimal128Dtype.MAX_PRECISION
cudf.core.dtypes.Decimal128Dtype.deserialize
cudf.core.dtypes.Decimal128Dtype.device_deserialize
cudf.core.dtypes.Decimal128Dtype.device_serialize
cudf.core.dtypes.Decimal128Dtype.from_arrow
cudf.core.dtypes.Decimal128Dtype.host_deserialize
cudf.core.dtypes.Decimal128Dtype.host_serialize
cudf.core.dtypes.Decimal128Dtype.is_dtype
cudf.core.dtypes.Decimal128Dtype.itemsize
cudf.core.dtypes.Decimal128Dtype.precision
cudf.core.dtypes.Decimal128Dtype.scale
cudf.core.dtypes.Decimal128Dtype.serialize
cudf.core.dtypes.Decimal128Dtype.str
cudf.core.dtypes.Decimal128Dtype.to_arrow
cudf.core.dtypes.ListDtype.deserialize
cudf.core.dtypes.ListDtype.device_deserialize
cudf.core.dtypes.ListDtype.device_serialize
cudf.core.dtypes.ListDtype.element_type
cudf.core.dtypes.ListDtype.from_arrow
cudf.core.dtypes.ListDtype.host_deserialize
cudf.core.dtypes.ListDtype.host_serialize
cudf.core.dtypes.ListDtype.is_dtype
cudf.core.dtypes.ListDtype.leaf_type
cudf.core.dtypes.ListDtype.serialize
cudf.core.dtypes.ListDtype.to_arrow
cudf.core.dtypes.ListDtype.type
cudf.core.dtypes.StructDtype.deserialize
cudf.core.dtypes.StructDtype.device_deserialize
cudf.core.dtypes.StructDtype.device_serialize
cudf.core.dtypes.StructDtype.fields
cudf.core.dtypes.StructDtype.from_arrow
cudf.core.dtypes.StructDtype.host_deserialize
cudf.core.dtypes.StructDtype.host_serialize
cudf.core.dtypes.StructDtype.is_dtype
cudf.core.dtypes.StructDtype.serialize
cudf.core.dtypes.StructDtype.to_arrow
cudf.core.dtypes.StructDtype.type
pylibcudf
aggregation
binaryop
Column
column_factories
连接
copying
datetime
expressions
filling
gpumemoryview
groupby
hashing
interop
join
json
labeling
lists
merge
null_mask
partitioning
quantiles
reduce
replace
reshape
rolling
四舍五入
Scalar
search
排序
stream_compaction
table
traits
transform
transpose
types
unary
I/O
Avro
CSV
JSON
Parquet
Parquet 元数据
text
Timezone
strings
首字母大写
char_types
combine
包含
extract
find
find_multiple
findall
padding
regex_flags
regex_program
重复
replace_re
replace
side_type
切片
分割
strip
包裹
convert
nvtext
edit_distance
generate_ngrams
jaccard
minhash
byte_pair_encode
ngrams_tokenize
normalize
replace
stemmer
subword_tokenize
tokenize
性能跟踪
10分钟了解cuDF和Dask cuDF
cuDF 和 Pandas 的比较
支持的数据类型
输入 / 输出
输入 / 输出
处理JSON数据
处理缺失数据
GroupBy
使用cuDF的用户定义函数概述
cuDF 和 CuPy 之间的互操作性
选项
性能比较
性能比较
Pandas 兼容性说明
Copy-on-write
内存分析
pandas 2 在 cuDF 24.04+ 中的重大变更
cuDF 用户指南
API 参考
GroupBy
cudf.core.groupby.groupby.DataFrameGroupBy.size
cudf.core.groupby.groupby.DataFrameGroupBy.size
#
DataFrameGroupBy.
size
(
)
[source]
#
返回每个组的大小。
On this page
DataFrameGroupBy.size()
Show Source
