title: Object not found in R.net c#
body: <p>After importing data from csv files, I want to arrange them according to Id numbers for example for the first table:</p>
  
  <pre><code>DataFrame DataIns = engine.Evaluate("DataIns&lt;-read.table('C:/Users/isalah/Desktop/Fichiers_CRM/Fichier_csv/Diagnostic.csv', header=TRUE, sep =';',fill = TRUE)").AsDataFrame();
  engine.Evaluate("DataIns[with(DataIns, order(Id)),]").AsExpression();
  </code></pre>
  
  <p>But this error was shown :</p>
  
  <blockquote>
    <p>'Error in order(Id) : object 'Id' not found</p>
  </blockquote>
  
  <p>how resolve it? thanks !</p>