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> On 15 May 2021, at 04:13, HH PackRat <hhpack...@gmail.com> wrote: > > Hello again! > > I'm thinking, for example, of a table of boxed data in its transposed > horizontal position that has, say, 3 rows of, say, 1000 *boxed* values > each. My goal is to amend *all* of the boxed values to their square > roots in one version of what I want to do and *all* of the original > boxed values to their logarithmic equivalents (maybe multiplied by a > constant, say, 100) in a second version . > > Using what I know from past answers to my questions, I'm sure I could > use "for" loops with repeated amends to accomplish this, but that > seems to be working against J's efficiency in dealing with large > quantities of data at once. > > How can I do such a mass "amend" of entire tables in one fell swoop in > J? Please show EXPLICIT code rather than tacit code. > > Thanks for any and all help! > > Harvey > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
