直线趋势 meaning in Chinese

rectilinear trend
straight line trend

This extraordinarily large forecast suggests, however, that we must be more careful in forecasting with a parabolic curve than we are when using a linear trend .
然而，这个庞大的预测数字说明，使用抛物线做出预测比使用直线趋势做出预测必须更加慎重。
According to the strategy of the communications and aim of social economy , forecast the demand of communications talents in 2010 through many forecast methods . for example : straight - line trend methods , self - adaptation filter methods , linear return methods and etc . based on above all , put forward some advises on the development of talents
根据交通事业发展战略及社会经济发展的目标，运用直线趋势预测法、自适应过滤法、一元线性回归法等多种预测方法对2010年交通专门人才需求进行了预测。