You cannot do that with genetic algorithm.
If you were using particleswarm you could input the data as InitialSwarmMatrix. Unfortunately, though, particleswarm() will not permit you execute without providing a function to optimize.
I suspect that you do want to use a function.
If you want to operate on the NIR data in the function (such as if you were using it as data to fit against) then you would do that by Parameterizing the objective function
If you want to provide the NIR data as initial population members for some objective function, then you would need to use a custom population creation function.
