# sysid - System Identification in R The package provides functions for constructing mathematical models of dynamic systems from measured input-output data. It lets you create and use models of dynamic systems not easily modeled from first principles or specifications. You can use time-domain and frequency-domain input-output data to identify discrete-time input-output models, transfer functions and state space models. ## Installation You can install `sysid` from github using the `devtools` package. ```coffee require(devtools) install_github("surajy123/R-sysid/") ``` > Note: Windows users need to install the `Rtools` package.