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Hello wizards, I need to convert the following functions (prestd, poststd, prepca) of matlab to R. Does Somebody knows how to do it. A description of the functions is: prestd preprocesses the network training set by normalizing the inputs and targets so that they have means of zero and standard deviations of 1. poststd postprocesses the network training set which was preprocessed by prestd. It

Hi wizards, I have seen the function svd of R for singular value decomposition, but I need to computes the ``economy size'' or ``thin'' singular value decomposition of a matrix in R. Somebody knows how to do that?. Thanks in advance. -- Web Page http://geocities.com/lord_tyranus_96/

...: Two sided How can I interpret this result ? Generally, one rejects the null hypothesis if the p-value is smaller than or equal to the significance level,but I have examined the documentation but I don't find the significance level. Thanks in advance. -- Web Page http://geocities.com/lord_tyranus_96/