Table 1.

Number of genes with different percentages of missing values in the datasets

Datasets	Number of arrays		Number of genes		Number of genes with specific missing percentages (%)
	N	N'	L	L'	0~5	5~10	10~15	15~20	>20
Histone	24	24	6120	3913	1074	98	25	749	261
Gasch	173	44	6153	2990	2597	317	139	55	54
Calcineurin	24	24	6586	3367	0	1102	312	162	420
Sp.elu	14	14	6178	5766	0	296	11	0	105
Sp.alpha	18	18	6178	4489	0	1183	282	65	159
Diauxic	7	7	6068	5875	0	0	0	191	2

N and L are the number of experimental conditions and genes in the original dataset respectively. N' and L' are the number of experimental conditions and genes in the dataset after removing the genes with missing values.