0👍
Just override the scaleLabel
option
...
scaleLabel: function(valueObj) {
if (valueObj.value === '0')
return 'Mean'
else if (Number(valueObj.value) > 0)
return '+' + valueObj.value + 's';
else
return valueObj.value + 's';
}
});
Note that unless your data range is static, you’ll also need to override the scale.
Fiddle – http://jsfiddle.net/Lbk9ughy/
Source:stackexchange.com