what is regularization coefiicient

I try to use "ELM kernel" code for matlab,(<http://www.ntu.edu.sg/home/egbhuang/elm_codes.html)>. However it seems vague for me and I can't generalize it for my data. my first problem is what is the value of regularization coefficient?
Thanks for your help.

 采纳的回答

the regulazation parameter is the user parameter in the moore peneroose psedoinverse of matrix mathed which is presented by C factor in this formula
(B=(inv((I/C)+H'*H)*H'*T);
wher I is the identity matrix you can type "help eye " in Matlab .

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