error horzcat CAT arguments dimensions

does anyone understand why am i getting this error:

??? Error using ==> horzcat CAT arguments dimensions are not consistent. Error in ==> code at 60 peaksK = [distancesK(1), peakssK, distancesK(end)];

when using this code:

(distancesK = 582x1 double)

[peakssK, iPeakssK] = findpeaks(distancesK); 

   peaksK = [distancesK(1), peakssK, distancesK(end)];

i have already used this code million times but now it is giving me this error. can anyone help me please? thank you very much.

Answer 1

[Andrei Bobrov]

peaksK = [distancesK(1); peakssK(:); distancesK(end)];

or

peaksK = [distancesK(1), peakssK(:).', distancesK(end)];

[Jan]

Or:

peaksK = [distancesK; peakssK; distancesK(end)];

[joo]

thank you so much for the both of you.it worked like this. thank you.

peaksK = [distancesK(1), peakssK.', distancesK(end)];
iPeaksK = [1, iPeakssK.', length(distancesK)];