Performing mathematical operation on the y coordinates in a list of coordinates

Question

I have a list that contains a set of coordinates in the form {{x1,y1}, {x2,y2}, ...}. I want to edit the list in manner that it takes the log() of all the y coordinates only. Essentially, I want redefine the list such that it now contains {{x1,log(y1)}, {x2,log(y2)}, ...}.

cvgmt · Answer

{{x1, y1}, {x2, y2}, {x3, y3}} /. {x_, y_} :> {x, Log[y]}

Or
{#1, Log[#2]} & @@@ {{x1, y1}, {x2, y2}, {x3, y3}}

Or the method which provided by @wuyudi

Performing mathematical operation on the y coordinates in a list of coordinates

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