Uncaught Error: Row 29 has 1 columns, but must have 32 - datatable

Question

I'm trying to get some CSV data into a DataTable in order to create a line graph. The CSV has gone through a function to clean up the data prior to creating a new DataTable, the variable data2Array.
I only want to access 5 of the columns from data2Array. When I try to add a new row with the 5 data values, I get the following exception:
Uncaught Error: Row 29 has 1 columns, but must have 32
This has me confused, because I can see I've only tried to add the one row to data2Table, supplying only the 5 aforementioned values. Here is the log of what the row looks like:
0, Jul 1 2015, 3.379, 6.57, 0
data2Array has 32 columns and 29 rows, but in my DataTable, I've only specified for 5 columns before attempting to add a row. Since I am not adding anything to the original data source, but rather to data2Table, why is the exception mentioning row 29 or needing 32 columns? My new DataTable has been specified with only 5 columns.
Below is the code I am working with currently:
var data2Array = fullDataArray(csvData2);
console.log("data2 clean: " + data2Array);
// request line graph - data2
var data2Table = new google.visualization.DataTable(data2Array);
data2Table.addColumn('number', 'colIndex');
data2Table.addColumn('string', 'colLabel1');
data2Table.addColumn('string', 'colLabel2');
data2Table.addColumn('string', 'colLabel3');
data2Table.addColumn('string', 'colLabel4');
var testArr = [0, data2Array[0][0],data2Array[0][4], data2Array[0][5], data2Array[0][7]];
console.log('test: ' + testArr);
data2Table.addRow([0, data2Array[0][0],data2Array[0][4], data2Array[0][5], data2Array[0][7]]);