# importInitState¶

Line.importInitState(filename, filetype)

Imports the initial state of the quantum walk from a file.

Parameters: filename (str) – path to the file containing the input state. filetype (str) – the filetype of the imported adjacency matrix. 'txt' - an $$N$$ element column vector in text format. 'bin' - an $$N$$ element PETSc binary vector. : this creates a PETSc vector containing the initial state, accessed via Graph.psi0. petsc4py.PETSc.Vec()

Warning

The number of elements in the imported input state vector must match the number of nodes the 1P CTQW object is initialized with.