Error using vertcat, dimensions of arrays being concatenated are not consistent

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Lucas 2022-11-16

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https://ww2.mathworks.cn/matlabcentral/answers/1852933-error-using-vertcat-dimensions-of-arrays-being-concatenated-are-not-consistent

评论： Lucas 2022-11-16

Results = [beamontime; beamofftime; dwelltime; avgxbeam; avgybeam; avgbeam; avgxcentroid; avgycentroid; jitter; avgpower; avgpeakirr; framerate; dwellframerate];
Name = [ 'Beam On (UTC)'; 'Beam Off (UTC)'; 'Dwell Time (s)'; 'Average X-Diameter (cm)'; 'Average Y-Diameter (cm)'; 'Average Diameter (cm)'; 'Average X-Centroid (cm)'; 'Average Y-Centroid (cm)'; 'Jitter (cm)'; 'Average Power (kW)'; 'Average Peak Irradiance (W/cm^2)'; 'Frame Rate (Hz)'; 'Dwell Time Frame Rate (Hz)'];
T = table(Name, Results)

I have two arrays with 1 column and 13 rows. I am trying to make a 2 column table with the names on the left and results on the right. The first 3 results are durations and the rest are double values. Please help, I feel like making tables is so hard on Matlab!

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Stephen23 2022-11-16

"The first 3 results are durations and the rest are double values."

You will have to store these in a container array, e.g. a cell array, because table columns/variables must be one homogenous data type. Mixing data types like this is probably not the best use of a table.

"Please help, I feel like making tables is so hard on Matlab!"

The error message you get is due to concatenating together incompatible char vectors. It is unrelated to tables.

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Answer 1

Stephen23 2022-11-16

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编辑：Stephen23 2022-11-16

在 MATLAB Online 中打开

Use a string array rather that trying to vertically concatenate incompatible character vectors:

Name = ["Beam On (UTC)"; "Beam Off (UTC)";..];
%       ^             ^  ^              ^ string scalars, not character vectors.

https://www.mathworks.com/help/matlab/characters-and-strings.html

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Stephen23 2022-11-16

在 MATLAB Online 中打开

Tested:

Name = ["Beam On (UTC)"; "Beam Off (UTC)"; "Dwell Time (s)"];
Results = [1;4;pi];
T = table(Name,Results)
T = 3×2 table
          Name          Results
    ________________    _______

    "Beam On (UTC)"          1 
    "Beam Off (UTC)"         4 
    "Dwell Time (s)"    3.1416 