我试图写一段代码,只有当列表的所有元素(guess3)都是>时才能找到变量的最小值(RSS3)。我已经完成了:
if RSS3_min < RSS3_fin and (all(guess3[q]) > 0 for q in range(len(guess3))):
RSS3_fin = RSS3_min
guess3_fin = guess3
print i,j,k, 'RSS3 = ',RSS3_fin, 'guess3 = ', guess3
输出如下:
0 1 2 RSS3 = 152.470584348 guess3 = [ 1.03993316e-18 -4.21309327e-21 3.91958921e-23]
0 1 3 RSS3 = 138.828305634 guess3 = [ -9.72979812e-18 2.45455199e-20 9.91015993e-17]
0 2 6 RSS3 = 110.971076196 guess3 = [ 2.51690683e-18 6.50243486e-23 -1.64840584e-18]
0 2 12 RSS3 = 110.167564411 guess3 = [ 1.67526232e-18 6.93897310e-23 -9.25020238e-19]
这意味着我if
条件的第二部分并不满足。我哪里错了?请考虑一下我对python真的很新,所以请保持简单......谢谢!
答案 0 :(得分:2)
右括号不在正确的位置,修复它:
if RSS3_min < RSS3_fin and all(guess3[q] > 0 for q in range(len(guess3))):
请注意,由于这是Python,您可以直接遍历列表中的项目:
if RSS3_min < RSS3_fin and all(item > 0 for item in guess3):