本文应用趋势季节模型预测法 ,对我院门诊人次进行统计分析 ,以时间数列的历史观察实际值作为依据 ,运用数学模型进行统计预测 ,使统计指标的预测值更能准确地反映出季节变动规律以及发展趋势。方法和步骤求出直线回归方程 :以季度序号X为自变量 ,观察实际值Y为因变量 ,得出直? This article uses the trend season model prediction method to carry out statistical analysis of the number of outpatient visits in our hospital. Based on the historical observations of the time series as a basis, the mathematical model is used for statistical forecasting, so that the forecasted values ​​of statistical indicators can more accurately reflect the seasonal changes. And development trends. Methods and steps to find the linear regression equation: take quarterly serial number X as the independent variable, observe the actual value Y as the dependent variable, and obtain the straight?