SFig7abe: 16 stimulus directions (0:22.5:337.5,rows) by 15 days for each LDA component X time combination (sheets), LDA_dir1 is the first direction coding LDA axes, where LDA_1 and LDA_2 are first two orientation coding axes.   
SFig7cdf: 24 stimulus conditions (ordered in 0:30:150degree of 0.02cpd, 0:30:150degree of0.04cpd etc) by 15 days for each LDA component X time combination (sheets)
Ori:orientations. SF: spatial frequencies. Dir:directions.
