some parameter finder

find_par.py

def find_median(xs):
    ys = sorted(xs)
    if not len(xs) % 2 == 0:
        return ys[len(ys) // 2]
    else:
        return (ys[(len(ys) // 2)] + ys[(len(ys) // 2) - 1]) / 2    

def make_sum(xs, a):
    return sum(map(lambda x: abs(x - a), xs))

def find_x(xs):
    a = find_median(xs)
    i = a
    param = None
    param1 = None
    while True:
        s1 = make_sum(xs, i)
        s2 = make_sum(xs, i + 0.5)
        if s1 == s2:
            param = i
            break
        if s2 < s1:
            i += 0.5
            continue
        if s2 > s1:
            param = i
            break
    
    while True:
        s1 = make_sum(xs, i)
        s2 = make_sum(xs, i -0.5)
        if s1 == s2:
            param1= i
            break
        if s2 < s1:
            i - 0.5
            continue
        if s2 > s1:
            param1= i
            break
    
    return param if make_sum(xs, param) <= make_sum(xs, param1) else param1