加权最小二乘法权重估计SPSS问题求助

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收藏 2015-04-09

对两组数据做了简单线性相关，审稿人要求修改统计学方法“The analysis of connectivityas a function of symptom severity is very interesting; however, I have someconcerns related to the analytic approach. In this regard, the varianceincreases as a function of symptom severity, suggesting that a simple linearregression may not be the appropriate analytic technique given the heteroscadasticity. Amore appropriate (and informative) analysis would be a regression using weighted least squaresestimation which includes 95% prediction limits and 95% confidenceintervals. ”，按照一个教程做了如下操作，出现问题“找到具有非正源变量值或负权重变量值的个案。将忽略这些个案。”自变量为负值的均被忽略了，请教。