Your "for" loop is broken. You probably want something like this:
for (j = 0; j < 5; j++) { // with for (j = 0; j =
5; j++) {}, j always equals 5
for (k = 0; k < 4; k++) { // k < 3 doesn't give fill
every cell in the row
data.setValue(j, k, <value>);
}
}
If you want to use the same data multiple times, there several ways to do
so:
1) use the data to build different charts in the same function:
function drawCharts() {
var data = new google.visualization.DataTable();
// populate data
var table = new new
google.visualization.Table(document.getElementById('table_vis'));
var chart = new new
google.visualization.BarChart(document.getElementById('chart_vis'));
table.draw(data, {<options>});
chart.draw(data, {<options>});
}
2) store the data globally (not recommended) and call it within multiple
functions:
var data = new google.visualization.DataTable();
// populate data
function drawTable() {
var table = new new
google.visualization.Table(document.getElementById('table_vis'));
table.draw(data, {<options>});
}
function drawChart() {
var chart = new new
google.visualization.BarChart(document.getElementById('chart_vis'));
chart.draw(data, {<options>});
}
3) store the data in a function, and return it on call:
function getData() {
var data = new google.visualization.DataTable();
// populate data
return data;
}
function drawChart() {
var chart = new new
google.visualization.BarChart(document.getElementById('chart_vis'));
chart.draw(getData(), {<options>});
}
Use #1 if it will work for you, as #2 can cause scope problems and #3 is
inefficient. If #1 won't work, then I'd suggest learning how to construct
the data table in JSON, and then storing the JSON in a function like #3.
There are other options, like setting up data queries or AJAX requests, but
they are probably more inefficient than #3 if your data is static.
If anyone else has better ideas, feel free to chime in.
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