function draw_table(){

	// create variable for table bar
   table = d3.select("#table")
   .append("table")
   .attr("class", "table table-hover table-bordered table-lg")

   // create variable for table heads
   table.append('thead')
   .attr("class", "thead-inverse")

   table.append('tbody');

    // create table heads
   d3.select("thead").append("tr")
   .selectAll('th')
   .data(variables_table).enter()
   .append('th')
   .text(function (column) { return column; });

}
// function to create static elements of table
function to create static elements of table
function to create static elements of table
function draw_table(){
   table = d3.select("#table")
   .append("table")
   .attr("class", "table table-hover table-bordered table-lg")
   table.append('thead')
   .attr("class", "thead-inverse")
   table.append('tbody');
   d3.select("thead").append("tr")
   .selectAll('th')
   .data(variables_table).enter()
   .append('th')
   .text(function (column) { return column; });
}
function draw_table ( ) { table = d3 . select ( "#table" ) . append ( "table" ) . attr ( "class" , "table table-hover table-bordered table-lg" ) table . append ( 'thead' ) . attr ( "class" , "thead-inverse" ) table . append ( 'tbody' ) ; d3 . select ( "thead" ) . append ( "tr" ) . selectAll ( 'th' ) . data ( variables_table ) . enter ( ) . append ( 'th' ) . text ( function ( column ) { return column ; } ) ; }
function to create static elements of table
function to create static elements of table
// create variable for table bar // create variable for table heads // create table heads