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Fuzzy Matching options for Merge Queries (preview)
Merge Queries allows you to easily combine data from multiple tables within the Power Query Editor. In this month’s releasing, we’re adding the option to compare values in the columns to match by using Fuzzy Matching logic, in addition to the existing “exact match” option.
You can enable Fuzzy Merge from the Preview features list in the Options dialog. Once you have done this, you’ll be able to access the new Fuzzy Matching options from within the Merge Queries dialog. Once you've selected the Fuzzy Matching option, you can also (optionally) further tweak the fuzzy matching settings.
This includes configuring:
Similarity Threshold - This option indicates how similar two values need to be in order to match. The minimum value of 0.00 will cause all values to match each other, and the maximum value of 1.00 will only allow exact matches. The default is 0.80.
Ignore case - This option indicates whether text values should be compared in a case sensitive or insensitive setting. Default behavior is case insensitive (ignore casing).
Ignore spaces - This option indicates whether text values should be compared taking into account spaces or not, such as “Some value” vs. “Somevalue”. Default behavior is to ignore spaces.
Maximum number of matches - This option controls the maximum number of matching rows that will be returned for each input row. For example, if you only want to find one matching row for each input row, specify a value of 1. The default behavior is to return all matches.
Transformation table - This option allows users to specify another query that holds a mapping table, so that some values can be auto-mapped as part of the matching logic. For example, defining a two-column table with a “From” and “To” text columns with values “Microsoft” and “MSFT” will make these two values be considered the same (similarity score of 1.00) by the matching logic.
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Selecting this option allows non-exact matches to be performed as part of Merge, like the ones showed in the following example (matching “Will” with multiple variations: Bill, bill, Will, will, etc.)
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Please note that in order to be able to refresh datasets that leverage this feature in the Power BI service, you will need to upgrade to the October release of the On-premises data gateway.
c'est tout !
mais je n'ai pas reporté les dessins et vidéos
note : tu as cru que tout le lien ne traitait que de Fuzzy Matching, alors que ce n'est qu'un détail. Tu es toi aussi surpris que Microsoft fasse autant d'évolutions de Power BI chaque mois !
preuve que Crosoft met le paquet sur ce logiciel, c'est son avenir, parce que c'est le nôtre aussi à nous ses clients
amitiés