m0=: #"0&1

Stacks of 1s of length y followed by 0s

m1=: #.&.|:

Decimal value of 2-item Boolean list y

m2=: ] { ' +ox'"_

One of four characters chosen by y

m3=: m2@m1@m0"1

Horizontal barchart of two intgr series y

m4=: #"0&'x'

Stack of 'x's of length y followed by ' 's

m5=: [: i. [: >: >./

Dense indices from 0 thru max y

m6=: [: >: [: i. >./

Dense indices from 1 thru max y

d7=: [ + [: i. [: -. -

Dense indices from x thru y

m8=: <./ , >./

Min and max of y

m9=: #/.~

Frequency count of items of y

m10=: <./ d7 >./

Integers from min y to max y, inclusive

m11=: [: >: [: i. ]

Integers from 1 thru y, inclusive

m12=: [: i. [: >: ]

Integers from 0 through y, inclusive

m13=: m25 d18 'x'"_

Barchart of y on vertical axis using ' x'

m14=: m25 d18 1:

Barchart of y on vertical axis using 0 1

m15=: |.@|:@m13

Barchart of y on horizontl axis using ' x'

m16=: |.@|:@m14

Barchart of y on horizontl axis using 0 1

m17=: [: -. m20

Table with i{y trailing 0s on row i

d18=: #"0

x replications of y

m19=: |.@|:@m23

Barchart of y (up the page)

m20=: [: |."1 m22

Table with i{y trailing 1s on row i

m21=: [: -. m22

Table with i{y leading 0s on row i

m22=: d18&1

y replications of 1, trailing 0s

m23=: d18&'x'

Barchart of y (across the page)

d24=: [ {. ] # 1:

List of y 1s followed by x-y 0s

m25=: [: <: [: m9 m11@(>./) ,]

Count of y among 1 through max y

m26=: [: <: [: m9 m12@(>./) ,]

Count of y among 0 through max y

m27=: [: <: [: m9 m10 , ]

Count of y among min through max y

d28=: [:+/\{.@],>:@[#(}.-}:)@]%>:@[

Interpolate x values between items of y

d29=: $@]$((* <.@:% #@]) /:@/:@,)

Classify y into x groups