Observation Transformation - AAVSO/VStar GitHub Wiki
Magnitude Baseline Shifter
Description: Allows the magnitude baseline of a set of observations to be shifted up or down by a specified amount. This action can be undone and re-applied via the Edit menu.
Author: David Benn
Magnitude and Time Shifter
Description: Allows the time and/or magnitude of a set of observations to be shifted by a specified amount. This action can be undone and re-applied via the Edit menu.
Author: David Benn
VeLa Observation Transformer
Description: Allows the magnitude and error of a set of observations to be modified via a VeLa function with this signature: do():list, where the returned list contains the modified magnitude and error of the current observation.
This action can be undone and re-applied via the Edit menu.
Here is an example of a do() function (slightly contrived: multiplying the magnitude by 10):
do():list {
[ magnitude*10 error]
}
Observation variables such as magnitude, error, observer_code, and band are available for use by code in the do() function, as is the case for VeLa filters.
Author: David Benn