functions for optimising K in maxKNN prediction of FW		
f1		
K	SDGVM	LPJ
1	434.078772	461.952845
2	388.986874	414.551244
3	369.029138	356.694595
4	359.848901	348.016338
5	353.300785	344.632913
6	351.678772	342.434184
7	349.772545	342.434184
8	349.546504	341.047651
9	343.968531	339.632532
10	343.968531	339.632532
		
f2		
K	SDGVM	LPJ
1	0.221672	0.25831
2	0.276605	0.323229
3	0.337238	0.371272
4	0.350176	0.397356
5	0.36147		0.431683
6	0.373399	0.446325
7	0.382499	0.464045
8	0.394843	0.48242
9	0.411223	0.510229
10	0.417813	0.518951
