i2e_data
- i2e_data(mpc, val, oldval, ordering, dim)
i2e_data()
- Converts data from internal to external indexing.VAL = I2E_DATA(MPC, VAL, OLDVAL, ORDERING) VAL = I2E_DATA(MPC, VAL, OLDVAL, ORDERING, DIM) For a case struct using internal indexing, this function can be used to convert other data structures as well by passing in 3 or 4 extra parameters in addition to the case struct. If the value passed in the 2nd argument (VAL) is a column vector or cell array, it will be converted according to the ordering specified by the 4th argument (ORDERING, described below). If VAL is an n-dimensional matrix or cell array, then the optional 5th argument (DIM, default = 1) can be used to specify which dimension to reorder. The 3rd argument (OLDVAL) is used to initialize the return value before converting VAL to external indexing. In particular, any data corresponding to off-line gens or branches or isolated buses or any connected gens or branches will be taken from OLDVAL, with VAL supplying the rest of the returned data. The ORDERING argument 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_ext = i2e_data(mpc, A_int, A_orig, {'bus','bus','gen','gen'}, 2); Converts an A matrix for user-supplied OPF constraints from internal to external 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_ext = i2e_data(mpc, gencost_int, gencost_orig, {'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
e2i_data()
,i2e_field()
,int2ext()
.