Matlab Sect 24 Finding the Length, Size, Sum, and Number of Elements in a Matrix

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I need help :(

Error using tabular/length (line 150)
Undefined function 'length' for input arguments of type 'table'. Use the HEIGHT, WIDTH, or SIZE functions
instead.

angelandrespaniaguapeaaloz
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What if I want to sum one column out of the matrix?

abdulharrison
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please, can you tell how to know which one length is giving, for example, it returns number 4, but if we didn't know already how many rows and columns how to know which number "length" is referring to??

MrDodoWorld
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Thanks for the nice tutorial. How do find out the number of certain thresholded elements (say elements > 2 in matrix1 here) and then find the sum of these thresholded elements only?

tarunyumnam
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Is it possible to specify the exact row and column of the minimum or maximum value? like a coordinate system?? and thanks for your video.!

Carluchs