In this article, the GMANOVA-MANOVA model is considered. Two different matrix residuals are established. The interpretation of discussed and several properties verified. A data set illustrates how can be used.

In this paper, we propose a new residual analysis method using Fourier series transform into fuzzy time series model for improving the forecasting performance. This hybrid model takes advantage of the high predictable power of fuzzy time series model and Fourier series transform to fit the estimated residuals into frequency spectra, select the low-frequency terms, filter out high-frequency term...