如何在没有数据或仅具有系数的情况下保存glm结果? [英] How to save glm result without data or only with coeffients for prediction?

问题描述

当我使用以下R代码时，

When I use the following R code,

model_glm=glm(V1~. , data=xx,family="binomial");
save(file="modelfile",model_glm);

modelfile的大小将与数据一样大，在我的情况下为1gig.如何删除model_glm结果中的数据部分，因此只能保存一个小文件.

The size of modelfile will be as much as the data, which will be 1gig in my case. How can I remove the data part in the result of model_glm, so I can only save a small file.

推荐答案

在对glm的调用中设置model = FALSE可以防止返回model.frame.同时设置y = FALSE将防止返回响应向量. x = FALSE是默认设置，可防止返回model.matrix.

Setting model = FALSE in your call to glm should prevent the model.frame from being returned. Also setting y = FALSE will prevent the response vector from being returned. x = FALSE is the default setting and prevents the model.matrix from being returned.

这种组合可以缩小glm对象的大小.

This combination should shrink the size of your glm object.

当然，您也可以使用coef(model_glm)提取系数，或者使用标准误差提取

Of course, you can also extract the coefficients with coef(model_glm) or, with standard errors,

summary(model_glm)$coef

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