columna API reference - v0.3.0
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Series
Class Series<T>
Type Parameters
T
=
number
|
string
|
boolean
|
null
Index
Constructors
constructor
Properties
column
name
num
Rows
Accessors
dtype
length
Methods
bfill
ffill
fill
Null
head
max
mean
min
null
Count
nunique
sum
tail
to
Array
unique
value
Counts
Constructors
constructor
new
Series
<
T
=
string
|
number
|
boolean
|
null
>
(
name
:
string
,
column
:
Column
,
numRows
:
number
,
)
:
Series
<
T
>
Type Parameters
T
=
string
|
number
|
boolean
|
null
Parameters
name
:
string
column
:
Column
numRows
:
number
Returns
Series
<
T
>
Properties
Readonly
column
column
:
Column
Readonly
name
name
:
string
Readonly
num
Rows
numRows
:
number
Accessors
dtype
get
dtype
()
:
DType
Returns
DType
length
get
length
()
:
number
Returns
number
Methods
bfill
bfill
()
:
Series
<
T
>
Returns
Series
<
T
>
ffill
ffill
()
:
Series
<
T
>
Returns
Series
<
T
>
fill
Null
fillNull
(
value
:
string
|
number
|
boolean
)
:
Series
<
T
>
Parameters
value
:
string
|
number
|
boolean
Returns
Series
<
T
>
head
head
(
n
?:
number
)
:
T
[]
Parameters
Optional
n
:
number
Returns
T
[]
max
max
()
:
number
|
null
Returns
number
|
null
mean
mean
()
:
number
|
null
Returns
number
|
null
min
min
()
:
number
|
null
Returns
number
|
null
null
Count
nullCount
()
:
number
Returns
number
nunique
nunique
()
:
number
Returns
number
sum
sum
()
:
number
Returns
number
tail
tail
(
n
?:
number
)
:
T
[]
Parameters
Optional
n
:
number
Returns
T
[]
to
Array
toArray
()
:
T
[]
Returns
T
[]
unique
unique
()
:
T
[]
Returns
T
[]
value
Counts
valueCounts
(
normalize
?:
boolean
)
:
DataFrame
<
Row
>
Parameters
Optional
normalize
:
boolean
Returns
DataFrame
<
Row
>
Settings
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Constructors
constructor
Properties
column
name
num
Rows
Accessors
dtype
length
Methods
bfill
ffill
fill
Null
head
max
mean
min
null
Count
nunique
sum
tail
to
Array
unique
value
Counts
columna API reference - v0.3.0
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