5 Fake data

 5.1 Faking it from scratch
 5.2 Faking it from existing data

FROG has an extensive suite of tools to generate fake data.

5.1 Faking it from scratch

The Fake Data popup, obtained from the main browser’s Operations=>Create fake periodic data item, allows you to generate sinusoidal data.

Noise can be added to both the x and y-data values. The fake data can then be manipulated like any other time series using the Constant Airithmetic and sin() Arithmetic popups to make more complex fake data sets.

5.2 Faking it from existing data

The sin() Arithmetic popup can be used to generate fake data based on real datasets. The Add to Windowed Function option sets all the y-axis data points to unity.

The sin() function is then added, subtracted, multiplied or divided (as specified) into this window function. Effectively this generates fake data with the same sampling as your original dataset,

Here (above) we have generated a fake dataset with the same sampling as our original data.