Auto lisp

Can you help me to filter all values from a list, which between given two values.

eg. all values between 50 and 75.(THANKS EVERYBODY I GOT THE ANSWER)

Welcome to the forum .

What's these values and where you want to filter them from ?

Tharwat

This values are from a cross section of a road.

I want to filter the levels 2m distance to both sides from center of the road.

Thanks for replying me. I think you can help me. wimal

Welcome to the forum .

 

What's these values and where you want to filter them from ?

 

Tharwat

^^ Once again ^^

These values are feeding to AUTO lisp program through a (DCL) dialog box. (distances & levels separately) Distances are given from center line of the road. I need to filter the levels within 2m distance from road cl.

Distance from road cl. D1,D2,D3,D5 etc. & Relevant Levels L1,L2;L3,L4 etc. I need to separate levels between L= -2.0m and L = +2.0m

Not sure what you mean by Values, but if its a list of numeric values

 
(setq lst '(1.5 1.75 2.34 1.54 2.00 2.25 1.23))

(defun HiLow (lst num / a b)    
(setq a (vl-remove-if-not
      '(lambda (v) (< v 2))
      lst)
       b
    (vl-remove-if-not
      '(lambda (v)(>= v 2))
      lst
    )
 )
 (print a)
 (print b)
 (princ)
 )

 
(defun HiLow2 (lst num / a b)
 (foreach itm lst 
   (if (>= itm num)

     (setq b (cons itm b))
     (setq a (cons itm a))
   )
 )
 (print a)
 (print b)
 (princ)
)

(defun HiLow3 (lst num / x y a b)
(while (setq x (car lst))
   (if (>= x num)
    (setq b (cons x b))
    (setq a (cons x a))
   )
(setq lst (cdr lst))
 )
 (print a)
 (print b)
 (princ)
)

(HiLow lst 2)

(HiLow2 lst 2)

(HiLow3 lst 2)

where would 2.00 go? hi or low

Yes it works