GTWR插件 error: matrix multiplication: inverse of singular matrix matrix为奇异矩阵【设A为n阶方阵,若存在另一n阶方阵B,使得AB=BA=I,则称A为非奇异矩阵,若不存在,则为奇异矩阵。 当exogenous variable中虚拟变量过多,可能产生singularmatrix或near singularmatrix,表示这些变量间存在较大相关性。 在数据处理时,...
The logit link function is used to model the probability of ‘success’ as a function of covariates (e.g., logistic regression). The purpose of the logit link is to take a linear combination of the covariate values (which may take any value between ±∞) and convert those values to the...
logistic regression). The purpose of the logit link is to take alinear combinationof the covariate values (which may take any value between ±∞) and convert those values to the scale of a probability, i.e., between 0 and 1. The logit link function is defined ...
Table 4. Logistic regression model results. VariablesEstimateS.E.z-valueOdds ratio (OR)VariablesEstimateS.E.z-valueOdds ratio (OR) (Intercept) 0.427 0.03 14.207 1.533 Vertical alignment (Ref: level) Time (Ref: 6am-12 pm) Level-elevated 0.472 0.045 10.443 1.604 12 am–6 am 0.972 0.038 ...