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<@U01819B63HP> As part of ngspice simulation `fosc1` expression is being generated and its value can be seen ngspice xterm window. Can I directly see value of this expression inside xschem using `ngspice_get_expr.sym`  or  `ngspice_get_expr.sym` elements in schematic ?

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xschem gets data from the raw file so any simulation variable you want to see in xschem must be saved in the raw file before the write instruction.
You can do something like this (see the foo value). If you add variables to raw file do the same in all runs since xschem expects the same variables to be present in multiple simulation runs.
You can see the value in schematic using a text object with floater=1 attribute set

You an also see multiple values in different runs, use the last parameter in `xschem raw value` to indicate the dataset (run number):