98 lines
2.1 KiB
Markdown
98 lines
2.1 KiB
Markdown
---
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layout: default
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title: Adjacency matrix
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parent: Bucket aggregations
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grand_parent: Aggregations
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nav_order: 10
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---
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# Adjacency matrix aggregations
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The `adjacency_matrix` aggregation lets you define filter expressions and returns a matrix of the intersecting filters where each non-empty cell in the matrix represents a bucket. You can find how many documents fall within any combination of filters.
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Use the `adjacency_matrix` aggregation to discover how concepts are related by visualizing the data as graphs.
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For example, in the sample eCommerce dataset, to analyze how the different manufacturing companies are related:
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```json
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GET opensearch_dashboards_sample_data_ecommerce/_search
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{
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"size": 0,
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"aggs": {
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"interactions": {
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"adjacency_matrix": {
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"filters": {
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"grpA": {
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"match": {
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"manufacturer.keyword": "Low Tide Media"
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}
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},
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"grpB": {
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"match": {
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"manufacturer.keyword": "Elitelligence"
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}
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},
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"grpC": {
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"match": {
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"manufacturer.keyword": "Oceanavigations"
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}
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}
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}
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}
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}
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}
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}
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```
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#### Example response
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```json
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{
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...
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"aggregations" : {
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"interactions" : {
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"buckets" : [
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{
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"key" : "grpA",
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"doc_count" : 1553
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},
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{
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"key" : "grpA&grpB",
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"doc_count" : 590
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},
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{
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"key" : "grpA&grpC",
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"doc_count" : 329
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},
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{
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"key" : "grpB",
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"doc_count" : 1370
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},
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{
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"key" : "grpB&grpC",
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"doc_count" : 299
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},
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{
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"key" : "grpC",
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"doc_count" : 1218
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}
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]
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}
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}
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}
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```
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Let’s take a closer look at the result:
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```json
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{
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"key" : "grpA&grpB",
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"doc_count" : 590
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}
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```
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- `grpA`: Products manufactured by Low Tide Media.
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- `grpB`: Products manufactured by Elitelligence.
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- `590`: Number of products that are manufactured by both.
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You can use OpenSearch Dashboards to represent this data with a network graph. |