r - Matching a vector element with another vector values -


Does anyone correct me in trying to read the index of values ​​from a vector that matches my current value . Thanks in advance ... 

  lat_array & lt; -c (seq (90, -89.95, = -0.05)) a & lt; -c (3.7, 90) match (a [1], late_re) # Returns NA, price 177. 3.7 matches (a [2], wave_are) # Surprising and return 1

One way to find the closest match is to: 

  JoeMan (Ab (Lot_Are - A [1])) ## [1] 1727 Lot_Ere [1727] ## [1] 3.7

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