stat.setData(this.testData)
.pipe('group', 'city')
.pipe('aggregate', {
field: 'dist1',
label: null, // can be omitted
action: 'sum',
type: 'single', // no explosion
filters: [{
field: 'year',
min: 2010,
max: 2014
}, {
field: 'status',
include: ['A', 'C', 'Y']
}]
});