1. A method of evaluating a reservoir, comprising: obtaining data comprising properties of the reservoir and properties of a fracture in the reservoir; determining modification parameters of a reservoir model of the reservoir based on the data using a correlation matrix, wherein the correlation matrix corresponds to an empirical functional relationship between the modification parameters and the data, and wherein the correlation matrix is obtained based on a plurality of experimental fractures defined in the reservoir; emulating effects of the fracture by selectively modifying the reservoir model using the modification parameters to generate a modified reservoir model; and modeling the reservoir with the fracture using the modified reservoir model to generate a result.