timeseriesanalysis(英文版)-展示頁(yè)
2025-02-23 11:32本頁(yè)面
【正文】 rk/Path/Underlying Trend? Underlying trend is a trend line that best describes the current sales growth rate.? It is the collective representation of all underlying factors that are influencing sales… industry, petition, and pany specific, etc.? It is determined using a bestfit line to a set of points on the time series. The points are selected based on indepth understanding of the underlying factors influencing sales, how they have changed over time, and how they will likely change in the future.? Points of inflection on the time series often signal changes in the underlying factors and hence the underlying trend.2023/3/4 21 O:/Network/Path/Estimating PYEPredicted{Actual Sales{Predicted{Seasonally Adj. Sales 247。Time Series AnalysisBenefits and Uses of Time Series ? Benefits of time series– Monitor sales performance over time… remove variation in monthly sales caused by calendar differences and seasonality that can conceal potential problems with sales – Accurately determine the direction and rate of growth/decline in sales – Quickly identify changes in sales trends and correlate them to factors affecting sales… industry, pany, petition– Improve decision making regarding sales and marketing actions? Uses of time series– Assess current sales performance and evaluate the effectiveness of sales programs– Determine underlying sales trend and project year end sales– Establish appropriate budgets for next year and estimate monthly budget spreadsTime series analy
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