User's Manual

LabQuest
®
3 – User Manual
31
o
FFT – FFTs or Fast Fourier Transforms are
typically used when analyzing Microphone
data. The tool calculates the FFT of the selected
data. The results are displayed in a separate
graph that can be analyzed.
For more information, see
www.vernier.com/til/2310
o Peak Integration – This tool is most commonly
used with the Vernier Mini GC, but it can be
applied to any data plot. It calculates the
integral for a selected portion of a graph. Peak
Integration differs from the Integral tool in that
it does not use the x-axis as the baseline.
Instead, the integral for Peak Integration is
evaluated using the minimum y-values to the
left and right of a selected peak.
o Pivot Data – This tool is only available in Data
Matrix mode. It transposes the rows (graphed as
the x-axis data typically 0100representing the
sampling site) with the runs (the datasets
typically representing the sampling day).
With this tool you can view the daily data as the
location changes, or pivot the data and view the
location data as the day changes.
Draw Prediction – The Draw Prediction tool is a free-hand sketch tool for drawing on the
Graph screen. This can be used for a variety of purposes, but is most often used to sketch a
prediction of how a graph will appear once data are subsequently collected.