How to get FFT by FFT block in simulink?

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vahid torabi
vahid torabi 2014-9-8
Actually I have my discrete signal in workspace. I have my signal as time series (. mat data) I know I should use "from workspace" but when I run,it wont work and give me an error!
error:
Complex signal mismatch. Input port 1 of 'untitled/Scope' expects a signal of numeric type real. However, it is driven by a signal of numeric type complex...

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