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D3
Bring your data to life.
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d3-array
By
Fil
Edited
Oct 24, 2023
ISC
10 stars
d3-array
Image Sharpening
d3.blur
d3.rank
d3.flatGroup, d3.flatRollup
d3.mode
d3.groupSort
Set Operations
d3.groups as a hierarchy
d3.fsum, d3.Adder
Time thresholds for d3.bin
d3.cumsum
Tidy Stacked Area Chart
Merging Duplicate Values
d3.zip, d3.transpose
d3.bin
d3.ticks
d3.mean, d3.median, and friends
d3.quickselect
d3.bisect
d3.sum
d3.group, d3.rollup, d3.index
d3.count
d3.min, d3.max, d3.extent
d3.least, d3.greatest
d3.pairs
d3.cross
d3.ascending, d3.descending
d3.merge
d3.range
d3.permute
d3.shuffle
d3-array 2.0
Insert cell
Insert cell
elements
=
[
"B"
,
"D"
,
"A"
,
"F"
,
"C"
]
Insert cell
first
=
d3
.
least
(
elements
)
Insert cell
last
=
d3
.
greatest
(
elements
)
Insert cell
Insert cell
firstIndex
=
d3
.
leastIndex
(
elements
)
Insert cell
lastIndex
=
d3
.
greatestIndex
(
elements
)
Insert cell
[
elements
[
firstIndex
]
,
elements
[
lastIndex
]
]
Insert cell
Insert cell
friends
=
[
{
name
:
"BORIS"
,
age
:
15
}
,
{
name
:
"bastien"
,
age
:
2
}
,
{
name
:
"carmen D."
,
age
:
18
}
,
{
name
:
"DIVINE"
,
age
:
35
}
]
Insert cell
d3
.
least
(
friends
,
(
a
,
b
)
=>
d3
.
ascending
(
a
.
age
,
b
.
age
)
)
Insert cell
d3
.
greatest
(
friends
,
(
a
,
b
)
=>
d3
.
ascending
(
a
.
age
,
b
.
age
)
)
Insert cell
Insert cell
d3
.
least
(
friends
,
d
=>
d
.
age
)
Insert cell
d3
.
greatest
(
friends
,
d
=>
d
.
age
)
Insert cell
Insert cell
d3
.
min
(
friends
,
d
=>
d
.
age
)
Insert cell
d3
.
max
(
friends
,
d
=>
d
.
age
)
Insert cell
Insert cell
d3
.
least
(
[
]
)
Insert cell
d3
.
leastIndex
(
[
NaN
,
undefined
,
,
]
)
Insert cell
Insert cell
d3
.
least
(
[
{
value
:
10
,
index
:
0
}
,
{
value
:
5
,
index
:
1
}
/* smallest */
,
{
value
:
15
,
index
:
2
}
,
{
value
:
5
,
index
:
3
}
/* smallest too! */
]
,
d
=>
d
.
value
)
Insert cell
d3
.
leastIndex
(
[
{
value
:
10
,
index
:
0
}
,
{
value
:
5
,
index
:
1
}
/* smallest */
,
{
value
:
15
,
index
:
2
}
,
{
value
:
5
,
index
:
3
}
/* smallest too! */
]
,
d
=>
d
.
value
)
Insert cell
Insert cell
d3
.
least
(
friends
,
d
=>
d
.
name
)
// 🌶 BORIS < bastien
Insert cell
Insert cell
d3
.
least
(
friends
,
d
=>
d
.
name
.
toLowerCase
(
)
)
// boris > bastien
Insert cell
Insert cell
name
=
d
=>
d
.
name
.
toLowerCase
(
)
Insert cell
d3
.
least
(
friends
,
name
)
Insert cell
Insert cell
d3
.
greatest
(
friends
,
name
)
Insert cell
d3
.
least
(
friends
,
(
a
,
b
)
=>
d3
.
descending
(
name
(
a
)
,
name
(
b
)
)
)
Insert cell
Insert cell
letters
=
new
Set
(
[
...
"forwhomthebelltolls"
]
)
Insert cell
d3
.
least
(
letters
)
Insert cell
Insert cell
counts
=
d3
.
rollup
(
"forwhomthebelltolls"
,
v
=>
v
.
length
,
d
=>
d
)
Insert cell
d3
.
least
(
counts
,
(
[
,
count
]
)
=>
count
)
Insert cell
Insert cell
d3
.
least
(
counts
,
(
[
,
count
]
)
=>
-
count
)
Insert cell
Insert cell
d3
.
least
(
counts
,
(
[
,
a
]
,
[
,
b
]
)
=>
d3
.
descending
(
a
,
b
)
)
Insert cell
Insert cell
d3
.
least
(
counts
,
(
a
,
b
)
=>
d3
.
descending
(
a
[
1
]
,
b
[
1
]
)
)
Insert cell
Insert cell
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