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count_if(group, condition)

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 Function   [other Function type actions]

 Group   [operators of similar scope]

 Data manipulation   [other Data manipulation operators]



count_if(group, condition)

Counts the number of notes in the list derived from group that satisfy the expression condition.

group describes the notes to be examined and may be any group designator including a find() query.

condition is action code forming a valid conditional query test, i.e. it equates to true when matched. Some query-style operators terms may allow use of regular expressions.

This equivalent to use of sum_if(), as the next two code examples have the same result:

sum_if(group, condition,1)

but this is perhaps more easily understood as:

count_if(group, condition)