title: conversion to float in R
body: <p>I have a set of Latitudes stored in VARCHAR format in mysql database-</p>
  
  <pre><code>"[26.455359183496455,26.44229519242908,26.437069181137474,26.45489812668682]"
  </code></pre>
  
  <p>I have imported them in R and I want to work with them by converting them as float. I know that <code>as.numeric()</code> is used for conversion but how to apply it in my case.
  someone please guide me. </p>