 News |
FAQ
|
| Search
|
Home
|
| Getting Started | Documentation | Glish | Learn More | Programming | Contact Us |
|
| Version 1.9 Build 803 |
|
As illustrated above, the calibrater tool has three `set' functions (calibrater.setdata, calibrater.setapply, and calibrater.setsolve) and two `operational' functions (calibrater.solve and calibrater.correct). The calibrater.setdata function selects data and the calibrater.setapply and calibrater.setsolve functions set up the state of the calibrater tool. Both calibrater.setapply and calibrater.setsolve can be executed more than once (for different calibration components) prior to calibrater.solve or calibrater.correct (e.g., calibrater.setapply will typically be executed for both G and P before solving for D). Use the calibrater.state function to review the current state and the calibrater.reset function to clear all or part of the calibrater.setapply/calibrater.setsolve state.
The calibrater.solve function will apply the calibration components (specified with calibrater.setapply) to the observed DATA, and solve for the components specified with calibrater.setsolve. Note that it is possible to specify more than one component for solving. In this case, the solutions are done serially (not simultaneously) in the right-to-left order prescribed by the Measurement Equation formalism (e.g., G before D), with each newly-solved component applied before solving for the next (e.g., G solutions will be applied before solving for D).
The calibrater.correct function applies a set of calibrations to the observed data and saves it for imaging in the CORRECTED_DATA column of the MeasurementSet. Anything set by calibrater.setsolve is ignored by calibrater.correct.