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# 6 Ondersteunde functies

Klik op de betreffende functiegroep om meer details te zien.

|Functiegroep|<|Functies|
|-|----------|----------------------------------------|
|[Aggregate functies](/manual/appendix/functions/aggregate)|<|avg, bucket\_percentile, count, histogram\_quantile, item\_count, kurtosis, mad, max, min, skewness, stddevpop, stddevsamp, sum, sumofsquares, varpop, varsamp|
||[Foreach functies](/manual/appendix/functions/aggregate/foreach)|avg\_foreach, bucket\_rate\_foreach, count\_foreach, exists\_foreach, last\_foreach, max\_foreach, min\_foreach, sum\_foreach|
|[Bitwise functies](/manual/appendix/functions/bitwise)|<|bitand, bitlshift, bitnot, bitor, bitrshift, bitxor|
|[Functies voor datum en tijd](/manual/appendix/functions/time)|<|date, dayofmonth, dayofweek, now, time|
|[Historiefuncties](/manual/appendix/functions/history)|<|change, changecount, count, countunique, find, first, fuzzytime, last, logeventid, logseverity, logsource, monodec, monoinc, nodata, percentile, rate|
|[Trendfuncties](/manual/appendix/functions/trends)|<|baselinedev, baselinewma, trendavg, trendcount, trendmax, trendmin, trendstl, trendsum|
|[Wiskundige functies](/manual/appendix/functions/math)|<|abs, acos, asin, atan, atan2, avg, cbrt, ceil, cos, cosh, cot, degrees, e, exp, expm1, floor, log, log10, max, min, mod, pi, power, radians, rand, round, signum, sin, sinh, sqrt, sum, tan, truncate|
|[Operatorfuncties](/manual/appendix/functions/operator)|<|between, in|
|[Voorspellingsfuncties](/manual/appendix/functions/prediction)|<|forecast, timeleft|
|[Stringfuncties](/manual/appendix/functions/string)|<|ascii, bitlength, bytelength, char, concat, insert, left, length, ltrim, mid, repeat, replace, right, rtrim, trim|

Deze functies worden ondersteund in [triggeruitdrukkingen](/manual/config/triggers/expression) en [berekende items](/manual/config/items/itemtypes/calculated).

Foreach-functies worden alleen ondersteund voor [aggregatieberekeningen](/manual/config/items/itemtypes/calculated/aggregate).

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