Google chart vertical axis strange label - charts

Question

I have made a Google column chart.
It displays ok. but the vertical axis label is showing an unit that I never set myself.
here is the screen shot.
I don't understand why it displays "1 td" instead of 1000 , "1,2 td" instead of 1200.
Here is my code:
google.load("visualization", "1.1", {packages:["bar"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
….
….
]);
var options = {
title: 'My Test',
};
var chart = new google.charts.Bar(document.getElementById('columnchart_material'));
chart.draw(data, options);
<div id="columnchart_material" style="width: 900px; height: 500px;"></div>
my code has nothing special part for the vertical axis and I used from google chart gallery. why it gets 'td' unit for vertical axis even I didn't set myself?
Is it Google column chart default option?
I try to manipulate the vertical axis value with vAxis:. but no luck.
Any advices?

Answer 1

Apparently, when using material bar charts, the y-axis (vAxis) default format is short, meaning showing td for thousands and so on. To reset this set format to '' :
var options = {
axes : {
y : {
all : {
format : {
pattern : ''
}
}
}
}
}
var chart = new google.charts.Bar(document.getElementById('columnchart_material'));
chart.draw(data, options);
demo -> http://jsfiddle.net/sfc9aLd4/
But the material charts are still in beta, and a lot of the options are yet not documented or documented poorly. Luckily we can use the google visualization options object layout and convert it with convertOptions(options) :
var options = {
vAxis : {
format : '' //or #####
}
}
var chart = new google.charts.Bar(document.getElementById('columnchart_material'));
chart.draw(data, google.charts.Bar.convertOptions(options));
Will result in the same as above axes : { ... }
demo -> http://jsfiddle.net/3aq7gucd/
With material charts there seems to be some differences for format. 'none' is now ''. decimal should be changed to ####.## or likewise. scientific, currency and percent works as before.