Determining length of values in cell

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Katrina Anderson 2019-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/443215-determining-length-of-values-in-cell

评论： KSSV 2019-2-6

Hi,

I have a single column cell with numbers between 1 - 5 (each allocated to a behaviour). This is used to plot a line graph so I can see what behaviour occured at each given time period. My question: Is there a way to extract features such as for Step it occurs when the behaviour "4" is represented on the line graph for greater than 700 data points. Is there a way I can do that?

And also determine how many times in the cell the behaviour changes. Not sure if this makes sense. Ask me to clarify otherwise.

Thanks

Katrina

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TADA 2019-2-5

can you share a small example to make it clearer?

Katrina Anderson 2019-2-5

编辑：Katrina Anderson 2019-2-5

thankyou!

I will attach a screenshot of a small part of the graph:

possible_threshes = {'Standing', 'WS', 'PG', 'Step', 'LD'};

thresh_vals = [1, 2, 3, 4, 5]

[tf, idx] = ismember(testmodel2(:,1), possible_threshes);

Behaviourcoded(tf, 1) = num2cell( thresh_vals( idx(tf) ) );

and thats how I got to that.

As you can see in the graph. Around the 8 - that is one step not two. Because there is a very short segment of '4'.

Hope that makes more sense?

Thankyou!!

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Answer 1

KSSV 2019-2-5

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/443215-determining-length-of-values-in-cell#answer_359527

编辑：KSSV 2019-2-5

在 MATLAB Online 中打开

If A is your data...you can use logicals like ==, >, < etc..to find the locations. For example, if you want where 4 is present. If the data is in cell, you need to use flower braces: A{1} ....

idx = find(A==4) ;