problem after new license

Question

fatemeh abdi 2023-12-7

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2057654-problem-after-new-license

评论： fatemeh abdi 2023-12-8

采纳的回答： Walter Roberson

Hello,

Matlab had a notification for updating and new license on 6 December.

After updating and receiving the new license, I could not run a script that I had run before.

I wanted to read txt file and do some calculations.

-------------

Array indices must be positive integers or logical values.

Error in untitled (line 21)

fft_out_hdl = sqrt(hexData1.Var1.^2 + hexData3.Var1.^2 + hexData4.Var1.^2)/(2.^32) ;

---------------------------

I decided to use Matlab online.

My script works fine in Matlab Online, but I had this error in the new updated version.

Please give me suggestion how to solve the error

Thank you for considering this matter.

Best regards

Fatemeh

2 个评论
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Dyuman Joshi 2023-12-7

Can you share the script, so we can reproduce the error?

It is weird though, you get that error for the line in which there is no array indexing.

There might be more information in the error message, so please share the full error message i.e. all of the red text.

fatemeh abdi 2023-12-7

编辑：Walter Roberson 2023-12-7

在 MATLAB Online 中打开

Thank you for your answer,

I shared only part of script that I had errors.

this code runs in matlab online, but doesn't run on my laptop after updating the license.

I think something is wrong in new version of matlab related to this

txt files are a column and 212217 rows.

% Define frequency axes
hexData1 = readtable('z_dataa.txt');
hexData3 = readtable('x_dataa.txt');
hexData4 = readtable('y_dataa.txt');
freq_axis1 = linspace(0, 2000, 2000); % 2KHz
xdata = hexData1.Var1.^2;
ydata = hexData3.Var1.^2;
zdata = hexData4.Var1.^2;
data_acc = sqrt(xdata + ydata + zdata);
% Plot xyz FFT
figure;
semilogy(freq_axis1, abs(fft(data_acc(1:2000) .* hamming(2000), 2000)));