Help with error Invalid argument at position 2. Function requires exactly 1 positional input(s).

2022 12 27
1 个回答
回答已采纳
更新时间：2022 12 28
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I need some help debugging an error I am seeing in my command window when trying to invoke a static method.
This is the code I have began writing to remotely control a visa instrument.
classdef TandE
methods(Static)
function insertionloss(machine, ip, calfile)
switch machine
case 1
vna = visadev('ni', ip);
fopen(vna);
%Setup Calibration / Port Mapping
write(vna, "SYST:PRESET");
write(vna, "MMEM:LOAD:CSAR" + ' ' + calfile);
write(vna, "*WAI");
write(vna, "SENS:SWE:MODE CONT");
fclose(vna);
case 2
otherwise
warning('Unexpected Machine')
end
end
end
end
When I try to call the function I am hit with this error. I am not quite sure what I am doing incorrectly but some help would be appreciated.
>> a = TandE
a =
TandE with no properties.
>> a.insertionloss(1, ip, calfile)
Error using TandE.insertionloss
Invalid argument at position 2. Function requires exactly 1 positional input(s).
>>

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 采纳的回答

Tanner Fortier
Tanner Fortier 2022-12-27
移动：Voss 2022-12-28

0 个投票

Issue was fixed, found it it was due to the visadev call and not the function call. Was using visa to call before and did not realize that the newer visadev did not have the same requirements for a call.

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