Coherence between two signals - matlab

1. What is coherence between two signals?
2. How do you combine signals in Matlab?

What is coherence between two signals?

In signal processing, the coherence is a statistic that can be used to examine the relation between two signals or data sets. It is commonly used to estimate the power transfer between input and output of a linear system.

How do you combine signals in Matlab?

Use Merge blocks to interleave input signals that update at different times into a combined signal in which the interleaved values retain their separate identities and times. To combine signals that update at the same time into an array or matrix signal, use a Vector Concatenate, Matrix Concatenate block.