Superimposing Experimental Data from EXP Files
If you create one or several EXP files based on the experiments in your POP file, you can visually compare the fit your plot and the experimental data you are optimizing the system against. An EXP-file contains data points specified in the DATAPLOT format. You could make an EXP-file for each type of data that you are using in the optimization.
Use the POST command APPEND_EXPERIMENTAL_DATA to superimpose the data points in an EXP-file on a phase or property diagram that you have plotted. For example, to put the experimental data points from a file entitled DP.EXP onto a plotted diagram, you could enter the following:
APPEND_EXPERIMENTAL_DATA Y DP.EXP 0 1
Such a command call tells Thermo‑Calc to superimpose the data points in dataset 1 of DP.EXP onto the plot in the Console Results window, but not to impose any information about axis scaling, labels and other information which is normally found in the prologue of the DP.EXP file.
The POST command QUICK_EXPERIMENTAL_PLOT can also be used to superimpose data points on a plotted phase or property diagram.