Table 1.

Multivariate detection of outlier samples based on cPCA and various rPCA methods in different datasets.

Dataset	No	Code	Type	Classic	Grid	Hubert	Locantore	Proj
Well-watered	1	4	Landrace	✓
	2	111	Landrace			✓	✓	✓
	3	170	Landrace		✓
	4	182	Landrace			✓
	5	200	Landrace	✓
	6	238	Cultivar		✓	✓
	7	252	Cultivar	✓	✓	✓	✓	✓
	8	277	Cultivar			✓	✓	✓
Rain-fed	1	17	Landrace					✓
	2	82	Landrace	✓		✓	✓
	3	105	Landrace	✓		✓	✓	✓
	4	182	Landrace		✓	✓
	5	210	Cultivar	✓	✓			✓
	6	215	Cultivar			✓	✓
	7	219	Cultivar			✓
	8	286	Cultivar		✓
SNP	1	5	Landrace	✓			✓
	2	19	Landrace			✓
	3	21	Landrace		✓
	4	23	Landrace			✓
	5	24	Landrace			✓
	6	57	Landrace	✓
	7	133	Landrace					✓
	8	145	Landrace		✓
	9	161	Landrace		✓
	10	166	Landrace				✓
	11	213	Cultivar					✓
	12	219	Cultivar			✓
	13	262	Cultivar			✓
	14	270	Cultivar					✓
	15	276	Cultivar	✓			✓
	16	283	Cultivar			✓