when is linear trend is autocorrelation linear? what's positive for linear trend do autocorrelations show trend what is the autocorrelation of a timeseries how long does a linear trend last time how many month autocorrelation what is the trend on time series correlation when does a linear trend occur are linear autocorrelations positive does linear trend show up in time series is linear trend in timeseries positive is it always true that a trend is upward? if a trend is positive would it be a linear trend how many autocorrelations does a timeseries have are autocorrelations positive when do autocorrelations increase what month does autocorrelation start trending up do autocorrelations always have a linear trend time series autocorrelations positive