Is it possible to call on specific stimuli in a set and randomize it based on it's name.

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W
W 2014-9-29
回答： Alberto 2014-10-1
I have 144 stimuli named:
1_1_C_D.jpg
1_2_K_C.jpg
1_3_G_F.jpg
1_4_F_H.jpg
1_5_B_K.jpg
1_6_G_C.jpg
1_7_A_F.jpg
1_8_E_K.jpg
1_9_D_B.jpg
1_10_D_E.jpg
1_11_F_D.jpg
1_12_L_G.jpg
2_1_H_E.jpg
2_2_K_H.jpg
2_3_B_D.jpg
2_4_B_J.jpg
2_5_L_A.jpg ... etc. to 12
In my experiment, each character represents a different attribute. I need to be able to call only one attribute at a time in the entire list, for example all stimuli that have x_x_A_x and randomize it - this would be the "same" condition
Also to be able to do the opposite, in this sense call any stimuli such as x_x_A_x and call on all other stimuli that can be anything except x_x_A_x - this would be the "different condition"
Is this possible to do in matlab? Thanks!

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回答（1 个）

Alberto
Alberto 2014-10-1
You can do that using Regular expressions (so you can choose which files has the desired attribute) and the command dir so you can extract the full list of files.

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