wloss y	time x1	humidity x2
4.3	4	0.2
5.5	5	0.2
6.8	6	0.2
8	7	0.2
4	4	0.3
5.2	5	0.3
6.6	6	0.3
7.5	7	0.3
2	4	0.4
4	5	0.4
5.7	6	0.4
6.5	7	0.4