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Hi,

I am trying to plot voltage clamp currents of multiple channels for different mod files. For this I use Vector.record(). As there as multiple channels, I am passing a string to Vector.record(). As a test case, I tried it with hh channels. 'hh2' is same as hh with ik made a RANGE variable.

strname is a string: When I use to record I get this error: But when I use ik_vec.record(soma(0.5)._ref_ik_hh2), the code works. Do I have to convert strname to pointer using h.Pointer() or make pointer e.g. using p = h.Pointer(soma(0.5).ik_hh2) ?

Thanks,
Darshan

The problem is that Vector.record doesn't accept a string as its argument--it wants something that the parser recognizes to be a recordable variable.
If you are determined to continue on this path, as an experiment you might see if
Vector.record(eval(somestring))
succeeds; if it doesn't, you could try using Python statements to construct the entire command string, starting with Vector and ending with )), then exec that string.

But that seems too clever by half. Why write multiple lines of code and fiddle around to get it to work, when you already know how to write a single line pf Python that works and is understood by all who view it.

Thank you, Ted!

Python provides a standard way of using a string to grab a property, namely the getattr function.

e.g. if you have a section called soma and you wanted to get a pointer to a specific variable var from the 0.5 location, you could do
Similarly, a second getattr could be used if the "hh" mechanism was to be selected based on a variable.