polmatrixmultiply

polmatrixmultiply(cm, vec, polaxis=1)

Matrix multiply of appropriate axis of vec […,:] by cm

For an image vec has axes [nchan, npol, ny, nx] and polaxis=1 For visibility vec has axes [row, nchan, npol] and polaxis=2 For blockvisibility vec has axes [row, ant, ant, nchan, npol] and polaxis=4

Parameters

• cm – matrix to apply

• vec – array to be multiplied […,:]

• polaxis – which axis contains the polarisation

Returns

multiplied vec