DyalogMigrationLevels

The system variable ⎕ML determines the degree of compatability of Dyalog APL towards IBM's APL2. In general, the value 0 represents "native Dyalog". The higher the value, the closer to APL2/

For the time being (2009), 3 is the highest level of compatability one can achieve.

Note that with a default installation ⎕ML is set to 0.

ML setting

APL

Remarks

⎕ML←0

Native Dyalog (Default)

⎕ML←1

∊R

Monadic is interpreted as 'enlist' rather than 'type'

⎕ML←2

↑R

Monadic is interpreted as 'first' rather than 'mix'

⊃R

Monadic is interpreted as 'mix' rather than 'first'

L≡­R

For an array with unequal levels of nesting in its subarrays,
depth returns the maximum level of nesting. With ⎕ml≤2
depth returns a negative value if the subarrays have unequal depth

⎕ML←3

X⊂[K]Y

Dyadic follows the APL2 rather than the original Dyalog convention

⎕TC

The order of the elements of ⎕TC is the same as in APL2

CategoryDyalog

DyalogMigrationLevels (last edited 2009-07-30 09:43:24 by KaiJaeger)