In either case, the indices of the row and columns to be selected must be specified as vectors (or a scalar if only one row or column is to be selected). If you set both sources to external, the block adds two input ports. If you set either source to external, the block adds an input port for the external indices signal. Set the block's Source of row indices and Source of column indices to the source that you prefer ( internal or external). The block determines the row and column indices of the elements to select either from its Rows and Columns parameters or from external signals. If the input type is matrix, the Selector block outputs a matrix of elements selected from the input matrix.

If you specify a width of -1, the block accepts a vector signal of any width. If you specify a width greater than 0, the width of the input signal must equal the specified width. If the input type is vector, you must specify the width of the input signal or -1, using the Input port width parameter. The signal should specify the elements to be selected in the same way they are specified, using the Elements parameter. If you select external as the source for element indices, the block adds an input port for the element indices signal. If the block icon is large enough, it displays the ordering of input vector elements graphically. For example, this model shows the Selector block icon and the output for an input vector of and an Elements parameter value of. In either case, the elements to be selected must be specified as a vector unless only one element is being selected. If you select external, the block adds an input port for the external index signal. Set the Source of element indices parameter to the source ( internal, i.e., parameter value, or external) that you prefer. The block determines the indices of the elements to select either from the block's Elements parameter or from an external signal.

If the input type is vector, a Selector block outputs a vector of selected elements. The way the block determines the elements to select differs slightly, depending on the type of input. The parameter dialog box and the block icon change to reflect the type of input that you select. Set the Input Type parameter to the type of signal ( vector or matrix) that the block should accept in your model. The Selector block generates as output selected elements of an input vector or matrix.Ī Selector block accepts either vector or matrix signals as input. Select input elements from a vector or matrix signal Selector (Simulink Reference) Simulink Reference

Signal path selector