Dimensions of arrays being concatenated are not consistent.

Question

Prapthi 2023-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/1903660-dimensions-of-arrays-being-concatenated-are-not-consistent

评论： Sarvesh Kale 2023-1-31

 save_det_data = [detout(2,:)', detout(1,:)', Resel_agl', detout(3,:)',Resel_rng, Resel_vel, Resel_agl_deg];
Unrecognized function or variable 'detout'.

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Walter Roberson 2023-1-31

在 MATLAB Online 中打开

Please show us

whos detout Resel_agl Resel_rng Resel_vel Reset_Agl_deg

I suspect one of the Resel* variables has more than one row.

Prapthi 2023-1-31

Resel_agl_deg =

-45.5847

8.2132

90.0000

Resel_vel =

-4.1244 -4.1244 -4.2533 -3.9955 -4.5110

Resel_rng =

6.2213 26.7149 24.1532 19.7617 20.4936

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Answer 1

Prapthi 2023-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/1903660-dimensions-of-arrays-being-concatenated-are-not-consistent#answer_1160185

Resel_agl_deg =

-45.5847

8.2132

90.0000

Resel_vel =

-4.1244 -4.1244 -4.2533 -3.9955 -4.5110

Resel_rng =

6.2213 26.7149 24.1532 19.7617 20.4936

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Prapthi 2023-1-31

Thanks a lot sir....

I have one more doubt ....

% DBSCAN clustering

if ~isempty(rng_excd_list)

dets_cluster = clustering(save_det_data, fft_Vel, veloc_bin_norm, ...

dis_thrs, rng_grid, agle_grid);

end

while i'm running this code it will not go to this statement and it comes out of the condition why is that so???

Sarvesh Kale 2023-1-31

Hi Prapthi,

The condition is evaluating to false, isempty function checks for empty array, the rng_excd_list must be empty which means isempty will return logical 1 and not of logical 1 will be 0 so the if block statement will not execute.

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Answer 2

Sarvesh Kale 2023-1-31

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在 MATLAB Online 中打开

Hi Prapthi,

The command prompt is throwing error, make sure that detout array or function is defined in your workspace or the function is present in your present working directory, If the error thrown is 'Dimensions of arrays begin concatenated are not consistent' then probably you are trying to merge rows or different lengths or column vectors of different height.

a=[2,2,312,231];
b=rand(1,10);
[a;b]   % this line will throw error 
c={a;b} % this line will allow you to concatenate elements of different sizes
c{1}    % this will get a, indexing into cell arrays ! 