up Inquisit Language Reference

frequency attribute

The frequency attribute specifies the sampling frequency (in hertz) at which a datastream captures and records data.

Member of



/ frequency = integer


integer A positive integer specifying the frequency in hz.


Although there is no theoretical limit to high the frequency can be set, there may be practical limits to how fast Inquisit can capture and record data on a given device. The default is 60 hz.


The following datastream captures mouse coordinates at a frequency of 75 hz.

<datastream mousetracking>
/ columns = (date, time, subject, datastream.mousetracking.elapsedtime, trialcode, stimulusitem, stimulusitem, mouse.x, mouse.y)
/ frequency = 75

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