MATLAB: How to make specific point the origin

originvector

I have two column vectors (they hold longitude and latitude data) and I need to make the easternmost point my origin.
lat=[36.4050
   36.4054
   36.4096
   36.4099
   36.4100
   36.4147
   36.3706
   36.3657
   36.3538
   36.3450
   36.3329
   36.3237
   36.3109
   36.3037
   36.3035
   36.3036
   36.3044
   36.3058
   36.3061
   36.3081
   36.3090
   36.3077
   36.3090
   36.3113
   36.3134
   36.3162
   36.3180];
long=
  [116.7822
  116.7675
  116.7518
  116.7352
  116.7126
  116.7216
  116.8170
  116.8452
  116.8537
  116.8638
  116.8724
  116.8856
  116.8897
  116.8940
  116.9031
  116.9117
  116.9203
  116.9289
  116.9372
  116.9435
  116.9529
  116.9600
  116.9688
  116.9782
  116.9856
  116.9940
  116.9973]
I want lat(27,1) and long(27,1) to be my origin for future calculations (I will be finding distance between points).
Help!

Best Answer

[~, idx] = max(long);
base_point = [lat(idx), long(idx)]
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