k_taneja's articles:

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Neural Networks reducing inputs other than pca method 3 36 (2/16/2004 7:34:12 AM) comp.soft-sys.matlab hi ! i want to reduce the number of inputs to my neural network in order to reduce computational time... data : 1000 points (10x10x10) (contains alot of zeros also) method 1 (i ve tried this) change the poin... k_taneja

PCA with data contain alot of 0 9 33 (2/9/2004 4:25:16 PM) comp.soft-sys.matlab hi ! i ve tried using pca.m to carry out pca on data matrix that contain substantial number of 0 values.this cause the eig to give error as it encounters NaN while doing calucations in functions like corrcoef.... k_taneja

using corrcoef with data having 0 for pca 2 48 (2/9/2004 3:39:57 PM) comp.soft-sys.matlab hi ! i need to use pca to reduce the dimensions of my data for neural network analysis ... however in my data set there are alot of 0 values.Now when i use the pca matlab code it makes use of corrcoef functio... k_taneja