Calculating sum of square for each column

Teja_VaranasiTeja_Varanasi Member Posts: 17 Contributor II
This is what I want to implement in my columns.

     A   B   C   D
I    5    1    3   1
J   6    3    2   7
K  6    0    1   7
L  4    2     5   1 

I want to implement this formula for each column
                                         r_i jfracx_i jsqrtsum_k1m x_k j2 quad  i12 ldots m quad j12 ldots n
I have created a loop attribute, and inside generate attribute. But dont know about the formula for . Can somebody tell me how to do that? New to this rapidminer. 

Thanks in advance.


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