11.4.3.3. Drawing the parameters

Parameters can be plotted using a newly defined drawParameters instance, which shares the same prototype as the original method described in Drawing the parameters.

drawParameters(sTitre, variable = "*", option = "")

It takes up to three arguments, two of which are optional:

1. sTitre: the title of the plot (an empty string is allowed);

2. variable (optional): a list of parameter names to be drawn, separated by colons “:”. The default “*” draws all parameters;

3. option (optional): a list of options, separated by commas “,” to adjust the plotting behavior:

   • “nonewcanvas”: draw on the current canvas (instead of creating a new one);

   • “vertical”: if multiple parameters are plotted, display them stacked vertically (one per row). By default, plots are arranged horizontally, side by side.

   • “apriori/aposteriori”: draw only the a priori residuals or only the a posteriori residuals. If neither option is specified, both are displayed;

   • “transformed”: this option specifies that the transformed values should be used as the mean vector of the multivariate normal posterior distribution.

The main difference compared to the standard drawParameters method in TCalibration is that the plotted object are analytical functions.

In addition to the parameters, the residuals can be plotted using the standard drawResiduals method, which remains unchanged (see Drawing the residuals).