How to change the signal dimension on each loop?

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wkm42 2016-6-6

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https://ww2.mathworks.cn/matlabcentral/answers/287927-how-to-change-the-signal-dimension-on-each-loop

编辑： Stephen23 2016-6-6

Hey, I receive the following error message when trying to run the Simulink model:

Unable to determine signal dimensions. There is a loop consisting of '/Delay2' that cannot be resolved because signal dimensions are defined by a cyclic relationship. Specifying the signal dimensions on Inport, Mux, Selector, Demuxes will help resolve signal dimensions in the loop. You can also use the Signal Specifications to define the signal dimensions.