Why do i get rid of this error using cumsum saying 'dimension argument must be positive integer scalar within indexing range?

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LM 2017-10-26

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https://ww2.mathworks.cn/matlabcentral/answers/363374-why-do-i-get-rid-of-this-error-using-cumsum-saying-dimension-argument-must-be-positive-integer-sca

编辑： Stephen23 2017-10-26

Screenshot 2017-10-26 12.16.03.png

I am trying to get the cumulative return of four trading strategies using cum sum and it is giving me the error in the screen shot, how do i get rid of it?

Thanks

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Stephen23 2017-10-26

编辑：Stephen23 2017-10-26

The cumsum help shows that the data is always an array supplied as the first argument to cumsum. What do you expect to happen when you supply cumsum with four separate array input arguments?

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