Deduplicate Canvas reference pages (#3505)

This PR removes Canvas docs that were duplicated to only keep the
version that is already embedded within the Canvas docs, for a better
UX.

Keeping the reference pages separated made no sense here.

Fixes: #2949

Author: florent-leborgne

explore-analyze/visualize/canvas/canvas-function-reference.md

@@ -1308,7 +1308,7 @@ Interprets a `TinyMath` math expression using a `number` or `datatable` as *cont
 
 | Argument | Type | Description |
 | --- | --- | --- |
-| *Unnamed*<br>Alias: `expression` | `string` | An evaluated `TinyMath` expression. See [canvas-tinymath-functions.md](/reference/data-analysis/kibana/tinymath-functions.md). |
+| *Unnamed*<br>Alias: `expression` | `string` | An evaluated `TinyMath` expression. See [canvas-tinymath-functions.md](/explore-analyze/visualize/canvas/canvas-tinymath-functions.md). |
 | `onError` | `string` | In case the `TinyMath` evaluation fails or returns NaN, the return value is specified by onError. When `'throw'`, it will throw an exception, terminating expression execution (default). |
 
 **Returns:** Depends on your input and arguments
@@ -1323,7 +1323,7 @@ Adds a column by evaluating `TinyMath` on each row. This function is optimized f
 | Argument | Type | Description |
 | --- | --- | --- |
 | *Unnamed* **\***<br>Aliases: `column`, `name` | `string` | The name of the resulting column. Names are not required to be unique. |
-| *Unnamed*<br>Alias: `expression` | `string` | An evaluated `TinyMath` expression. See [canvas-tinymath-functions.md](/reference/data-analysis/kibana/tinymath-functions.md). |
+| *Unnamed*<br>Alias: `expression` | `string` | An evaluated `TinyMath` expression. See [canvas-tinymath-functions.md](/explore-analyze/visualize/canvas/canvas-tinymath-functions.md). |
 | `castColumns` † | `string` | The column ids that are cast to numbers before the formula is applied. |
 | `copyMetaFrom` | `string`, `null` | If set, the meta object from the specified column id is copied over to the specified target column. If the column doesn’t exist it silently fails.<br>Default: `null` |
 | `id` **\*** | `string` | id of the resulting column. Must be unique. |
@@ -1443,7 +1443,7 @@ Subdivides a `datatable` by the unique values of the specified columns, and pass
 
 ### `pointseries` [pointseries_fn]
 
-Turn a `datatable` into a point series model. Currently we differentiate measure from dimensions by looking for a `TinyMath` expression. See [canvas-tinymath-functions.md](/reference/data-analysis/kibana/tinymath-functions.md). If you enter a `TinyMath` expression in your argument, we treat that argument as a measure, otherwise it is a dimension. Dimensions are combined to create unique keys. Measures are then deduplicated by those keys using the specified `TinyMath` function
+Turn a `datatable` into a point series model. Currently we differentiate measure from dimensions by looking for a `TinyMath` expression. See [canvas-tinymath-functions.md](/explore-analyze/visualize/canvas/canvas-tinymath-functions.md). If you enter a `TinyMath` expression in your argument, we treat that argument as a measure, otherwise it is a dimension. Dimensions are combined to create unique keys. Measures are then deduplicated by those keys using the specified `TinyMath` function
 
 **Accepts:** `datatable`
 

redirects.yml

@@ -519,8 +519,13 @@ redirects:
 # Search sessions becoming background search
   'explore-analyze/discover/search-sessions.md': 'explore-analyze/discover/background-search.md'
 
+# Deduplicate canvas function reference
+  'reference/data-analysis/kibana/canvas-functions.md': 'explore-analyze/visualize/canvas/canvas-function-reference.md'
+  'reference/data-analysis/kibana/tinymath-functions.md': 'explore-analyze/visualize/canvas/canvas-tinymath-functions.md'
+
 # Remote cluster settings moved to reference: https://github.com/elastic/docs-content/issues/579
   'deploy-manage/remote-clusters/remote-clusters-settings.md': 'elasticsearch://reference/elasticsearch/configuration-reference/remote-clusters.md'
 
 
 
+

reference/data-analysis/index.md

@@ -5,7 +5,6 @@ This section contains reference information for data analysis features, includin
 * [Supplied {{anomaly-detect}} configurations](/reference/data-analysis/machine-learning/supplied-anomaly-detection-configurations.md)
 * [Function reference for anomaly detection jobs](/reference/data-analysis/machine-learning/machine-learning-functions.md)
 * [Metrics reference for the Infrastructure app](/reference/data-analysis/observability/index.md)
-* [Canvas functions](/reference/data-analysis/kibana/canvas-functions.md)
 * [Text analysis components](elasticsearch://reference/text-analysis/index.md)
 * [Aggregations](elasticsearch://reference/aggregations/index.md)