1.區(qū)間統(tǒng)計(jì).通常用于柱狀圖 每個(gè)范圍內(nèi)的量. 比如價(jià)格范圍的商品數(shù), 年齡范圍的人數(shù), 分?jǐn)?shù)范圍的人數(shù)等等.
可以概括為某個(gè)指標(biāo)范圍內(nèi)的出現(xiàn)次數(shù).
參考來源: http://www.cnblogs.com/xing901022
{
"aggs":{
"grade_ranges":{
"range":{
"field":"grade",
"ranges":[
{"to":60},
{"from":60,"to":80},
{"from":80}]
}
}
}
}
結(jié)果
{
...
"aggregations":{
"price_ranges":{
"buckets":[
{
"to":60,
"doc_count":2
},
{
"from":60,
"to":80,
"doc_count":32
},
{
"from":80,
"doc_count":14
}
]
}
}
}
指定區(qū)間名稱
{
"aggs":{
"price_ranges":{
"range":{
"field":"price",
"keyed":true,
"ranges":[
{"key":"cheap","to":50},
{"key":"average","from":50,"to":100},
{"key":"expensive","from":100}
]
}
}
}
}
