vector size allocation issue

I am trying to do one hot coding using this code-

combi <-, names = c('Outlet_Size','Outlet_Location_Type','Outlet_Type', 'Item_Type_New'), sep='_')

its showing me the error-

Error: cannot allocate vector of size 256.0 Mb

how to get done with the one hot coding now?

It's difficult for others to help without a reproducible example. Please follow these guidelines

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