let min = myData[0][0];
for(var r = 0; r < myData.length; r++) {
			for (let c = 0; c < myData[r].length; c++) {
				if (isNaN(Number(myData[r][c]))) {
					//console.log(myData[r][c])
				} else {
					if(myData[r][c] < min) {
						min = myData[r][c];
					}
				}
			}
		} // end for