APLX Help : Help on APL language : System Methods : ⎕EVAL Evaluate external expression




Implemented (as a system method) for the R external class only. Syntax:
The monadic The right argument is a text vector containing the expression. The result is the explicit result (if any) of evaluating the expression in the external environment. For example: r←'r' ⎕new 'r' r.x←2 3⍴⍳6 ⍝ x is an R variable r.x 1 2 3 4 5 6 r.⎕eval 'x[2,]' 4 5 6 r.⎕eval 'mean(x[2,])' 5 Note that the last line could be executed using the alternative syntax: 'r' ⎕eval 'mean(x[2,])' 5 

APLX Help : Help on APL language : System Methods : ⎕EVAL Evaluate external expression

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