Introduction - If you have any usage issues, please Google them yourself
Gray system theory, source code (Matlab language) is the most widely used gray forecasting model is a variable sequence prediction, the first derivative of GM (1,1) model. It is based on the original time series of random law presented by the new time series formed by the accumulated time first-order linear differential equations to approximate. Proved that the original time series, the first-order linear differential equation approximation revealed an exponential variation. Therefore, when the original time series implicit index variation, gray model GM (1,1) prediction is very successful.