MATLAB: Loading data into function workspace

local and global variableMATLAB

I want to load a workspace variable into a function that is called deep inside the whole program, but somehow even after load a saved mat file, it can't read the struct!
drivecycle = 
  struct with fields:
    cell: [1×1 struct]
Reference to non-existent field 'time'.
Error in getInputCurrentDensity (line 6)
I_density=interp1(drivecycle.time,drivecycle.I,t)
However, the variable does have the existing field, time.

Best Answer

If a variable is assinged to output of load, the variable is struct (Ref: document). So, you need to extract an array from struct using drivecycle = drivecycle.drivecycle.
I think the following will work.
drivecycle = load('dctest.mat');
drivecycle = drivecycle.drivecycle;
I_density = interp1(drivecycle.time,drivecycle.I,t);
Or, just
load('dctest.mat')
I_density = interp1(drivecycle.time,drivecycle.I,t);
would also work.
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