Table 1. Correlations between the sources and the average spectra for mouse C69 at LTE.

Mouse C69
init	euc	als	alspg	alsobs	convex
Random	.976/.940	.977/.938	.975/.928	.976/.939	.991/.986
K-means	.975/.941	.977/.938	.976/.939	.976/.939	.987/.993
FCM	.975/.940	.977/.938	.976/.939	.976/.939	.987/.993
PCA	.934/.879	.977/.938	.976/.938	.976/.939	.982/.988
ICA	.969/.800	.977/.938	.976/.938	.976/.939	.986/.992
NMF	.976/.938	.977/.938	.976/.939	.976/.939	.986/.992

Table cells should be read as the correlations between the sources and the average spectra (see figures 2 and 3) of the tumor/non-tumor areas. The results of the best performing method, for each initialization condition, are highlighted in bold.