Created
November 2, 2015 18:10
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| db.homeSales.aggregate([ | |
| { | |
| $group: | |
| { | |
| _id: {$year: "$date"}, | |
| higestPrice: {$max: "$amount"}, | |
| lowestPrice: {$min: "$amount"}, | |
| averagePrice: {$avg: "$amount"}, | |
| priceStdDev: {$stdDevPop: "$amount"} | |
| } | |
| }, | |
| { | |
| $sort: {_id: 1} | |
| } | |
| ]) |
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