i am making a face recognition system using HOG and ecoc model but i am getting 2 errors . can someone please tell me what do they mean and how do i get rid of them

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jaya matuwani
jaya matuwani 2015-4-12
评论： Image Analyst 2015-4-12
Error using classreg.learning.classif.CompactClassificationECOC/predictEmptyX (line 100) X data must have 4680 columns.
Error in classreg.learning.classif.CompactClassificationECOC/predict (line 237) [labels,negloss,pscore,posterior] = predictEmptyX(this,X);

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