How do i get multiple Min() values?

[HenHanna]

How do i get multiple Min() values?
          e.g.      for   Y = (x-2)*(x-3)   for x in range(-10,10)
                                   the min Y is hit twice
print(  min( ((x-2)*(x-3),  (x, (x-2, x-3)))
                                           for x in range(-10,10) ) )
is this easy in Scheme(Gauche) ?

if the Min() is going to check all of the Candidate values,
it could (at least) tell us how many times the Min value was seen!

[Kaz Kylheku]

Post by HenHanna

How do i get multiple Min() values?
          e.g.      for   Y = (x-2)*(x-3)   for x in range(-10,10)
                                   the min Y is hit twice
print(  min( ((x-2)*(x-3),  (x, (x-2, x-3)))
                                           for x in range(-10,10) ) )
is this easy in Scheme(Gauche) ?

if the Min() is going to check all of the Candidate values,
it could (at least) tell us how many times the Min value was seen!

I decided to add something like this to TXR Lisp.

It will appear in 296.

This is the TXR Lisp interactive listener of TXR 295.
Quit with :quit or Ctrl-D on an empty line. Ctrl-X ? for cheatsheet.
When transferring between containers, do not siphon TXR by mouth.
1> (find-mins -10..11 : [callf * pppred ppred])
(2 3)
2> (find-mins (vec-seq -10..11) : [callf * pppred ppred])
#(2 3)
3> (find-mins "abracadabra")
"aaaaa"
4> (find-maxes "abracacabra")
"rr"

I works with any less-like function, assuming equality
when it’s neither true that x is less than y, nor that
y is less than x.