[R] extract value from first column based on value in second column

Hi all, I have two columns of data, the first consists of parameter estimates and the second probability estimates. I would like to extract the value from the first column based on the max value of column two, but not sure how to do this other than by extracting the value and then manually

Re: [R] extract value from first column based on value in second column

Will something like this work for you: x - cbind(runif(10), runif(10)) x [,1] [,2] [1,] 0.26550866 0.2059746 [2,] 0.37212390 0.1765568 [3,] 0.57285336 0.6870228 [4,] 0.90820779 0.3841037 [5,] 0.20168193 0.7698414 [6,] 0.89838968 0.4976992 [7,] 0.94467527 0.7176185 [8,]