not geeting how to read data from workspace ?

hello i am using simulink and i want to use workspace data as an input to my system in simulink ...

i am creating white gaussian noise in matlab and saved it in one mat file and then use load command to get data in matlab workspace and in simulink i am using from workspace (simin) block to read data from workspace but when i am running simulink model it gives me block error for dimensions ...

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code for generating input and saving in matfile *********

q = wgn (1,10,0.005) save noisedata.mat q

then i am loading this in ma main script using

load noisedata.mat

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and use this q variable in simin block to read the data from workspace....

this is my simulink model , i am not getting what is wrong please suggest ways.