what model do i use to show time dependency how to fit a stationary model what is the model after detrending acf/acf how to fit a trend model in r what is pacf what kind of model to fit after detrending can you detrend a pacf can pacf be stationary is pacf stationary is detrending a stochastic process what is the acf pacf model what is acf/acf when comparing pacf, can you fit a stationary model is acf a stationary model? is an acf stationary? how can i fit a stationary model using r are pacf-acf stable which is stationary model r or r2 how to fit apcf model what is acf and acf based on