[R] Help!!

H. Zmarrou Hicham.Zmarrou at student.uva.nl
Thu Jan 16 21:18:02 CET 2003

Dear R-ers:
I'm sorry to disturb you, I want just ask how to work with a sum?
To be more exact I want to work with the function 

f(x)= sum_1^{n}K(x-x_i/h), K is a kernel or any other function
I have a data set (x_i) and I want to compute x for each x or plot 
Thank you for your hulp

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