public String printDataTableRows() {
		StringBuilder sb = new StringBuilder();
	    sb.append("data.addRows([");
	    String delim="";
	    for(Row row : this.getRows()) {
	        sb.append(delim).append("[");
	        String delim2 = "";
	        int i =0;
	        for(String entry : row.getEntries()) {
	        	if(columns.get(i).type == Column.Type.number) {
	        		sb.append(delim2).append(entry);
	        	} else {
	        		sb.append(delim2).append("'").append(entry).append("'");
	        	}
	        	i++;
	            delim2 = ",";
	        }
	        sb.append("]");
	        delim=",";
	    }
	    sb.append("]);");
		return sb.toString();
	}