Error using / Arguments must be numeric, char, or logical.

Question

Andika Asyuda 2023-5-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1957774-error-using-arguments-must-be-numeric-char-or-logical

评论： Siddharth Bhutiya 2023-5-4

Hi,

I am trying to run the folllowing code and get the following error message. Can anyone help to clarify my mistake and possible solution ? This problem should come from the very last line of code. As information, my input is a table with 181 rows and 5 columns.

error message:

Error using /

Arguments must be numeric, char, or logical.

Error in Henrique_Transistors_in_beaker_mod (line 72)

Gateeff(m,1) = refV(91,1)/GateV(91,1);

code:

input = 'C:\Users\aasyuda\Desktop\histamine\28April2023\scan_1\andikaAugatehistamine4electrode-1.xls';
opts = detectImportOptions(input);
Error using detectImportOptions
Unable to find or open 'C:\Users\aasyuda\Desktop\histamine\28April2023\scan_1\andikaAugatehistamine4electrode-1.xls'. Check the path and filename or file permissions.
T = 1e-7; %Assume 100 nm thick channel
W1 = 50e-6;
L5 = 500e-6;
DrainV = -0.2;
n=181;
m=33;
%Output Variables
OnOffRatio = zeros(33,1);
WTL = [];
AvgGateI =  zeros(33,1);
ThresholdVoltage = zeros(33,1);
LastGateI =  zeros(33,1);
Gateeff =  zeros(33,1);
AbsoluteDrainI=zeros(n,m);
AbsoluteGateI=zeros(n,m);
ElectrolyteV=zeros(n,m);
opts.Sheet = 1;
CurrentRun = readtable(input,opts);
WTL = (W1*T)/L5;
GateV = CurrentRun.AV;
MaxGateV = max(GateV);
DrainI = CurrentRun(:,3);
AbsoluteDrainI(:,m) = abs(table2array(DrainI));
MaxDrainI(m,1) = max(AbsoluteDrainI(:,m));
MinDrainI(m,1) = min(AbsoluteDrainI(:,m));
OnOffRatio(m,1) = MaxDrainI(33,1)/MinDrainI(33,1);
GateI =  CurrentRun(:,1);
AbsoluteGateI(:,m) = abs(table2array(GateI));
AvgGateI(m,1) = mean(AbsoluteGateI(:,m));
refV =  CurrentRun(:,5);
ElectrolyteV(:,m) = abs(table2array(refV));
Gateeff(m,1) = refV(91,1)/GateV(91,1);

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Walter Roberson 2023-5-4

@Siddharth Bhutiya

Good point about operations on table using the new R2023a facilities.

The user has marked they are using R2021b, so the new facilities do not apply to their situation, but your remark is a good reminder for people unfamiliar with the new facility.

Siddharth Bhutiya 2023-5-4

Oh apologies, I did not notice that Andika was on R2021b. In that case, I think the way to go would be to use the second suggestion of doing {} or dot+paren subscripting to extract the data, do the division and the put it back.

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