e2i_data
- e2i_data(mpc, val, ordering, dim)
e2i_data()
- Converts data from external to internal indexing.VAL = E2I_DATA(MPC, VAL, ORDERING) VAL = E2I_DATA(MPC, VAL, ORDERING, DIM) When given a case struct that has already been converted to internal indexing, this function can be used to convert other data structures as well by passing in 2 or 3 extra parameters in addition to the case struct. If the value passed in the 2nd argument is a column vector or cell array, it will be converted according to the ORDERING specified by the 3rd argument (described below). If VAL is an n-dimensional matrix or cell array, then the optional 4th argument (DIM, default = 1) can be used to specify which dimension to reorder. The return value in this case is the value passed in, converted to internal indexing. The 3rd argument, ORDERING, is used to indicate whether the data corresponds to bus-, gen- or branch-ordered data. It can be one of the following three strings: 'bus', 'gen' or 'branch'. For data structures with multiple blocks of data, ordered by bus, gen or branch, they can be converted with a single call by specifying ORDERING as a cell array of strings. Any extra elements, rows, columns, etc. beyond those indicated in ORDERING, are not disturbed. Examples: A_int = e2i_data(mpc, A_ext, {'bus','bus','gen','gen'}, 2); Converts an A matrix for user-supplied OPF constraints from external to internal ordering, where the columns of the A matrix correspond to bus voltage angles, then voltage magnitudes, then generator real power injections and finally generator reactive power injections. gencost_int = e2i_data(mpc, gencost_ext, {'gen','gen'}, 1); Converts a GENCOST matrix that has both real and reactive power costs (in rows 1--ng and ng+1--2*ng, respectively).
See also
i2e_data()
,e2i_field()
,ext2int()
.