R软件包mgcv是否存在已知的兼容性问题?是否有通用的兼容性规则? [英] Are there known compatibility issues with R package mgcv? Are there general rules for compatibility?

问题描述

我使用R版本2.15.1(2012-06-22)和mgcv版本1.7-22

I use R version 2.15.1 (2012-06-22) and mgcv version 1.7-22

我在R中加载了以下软件包:

I load the following set of packages in R:

library(sqldf)
library(timeDate)
library(forecast)
library(xts)
library(tseries)
library(MASS)
library(mgcv)

碰巧我不能运行一个简单的模型(我省略了代码).甚至包括从帮助页面获取的示例代码:

It happens that I can not run a simple model (I omit the code). Even the sample code taken from the help pages:

dat = gamSim(1,n=400,dist="normal",scale=2)
b = gam(y~s(x0)+s(x1)+s(x2)+s(x3),data=dat)

出现错误:

Error in qr.qty(qrc, sm$S[[l]]) : 
  NA/NaN/Inf in foreign function call (arg 5)
In addition: Warning message:
In smoothCon(split$smooth.spec[[i]], data, knots, absorb.cons, scale.penalty = scale.penalty,  :
  number of items to replace is not a multiple of replacement length

请注意，如果我只是加载软件包mgcv，然后立即使用示例代码，则一切正常.如果我只是加载所有程序包并运行示例代码，它也将起作用.如果我

Note that everything works fine, if I just load the package mgcv and then use the sample code right away. It also works if I just load all the packages and run the sample code. It just does not work if I

1. 加载所有程序包
2. 从软件包预测中读取文件，sqldf语句，ts操作和一些模型.
3. 如果我随后申请GAM，它将无法正常工作.

显然，一般环境中的变量定义会破坏程序包的功能.

Apparently the variable definitions in the general environment mess up the functioning of the package.

是否存在任何已知问题?如果加载各种程序包，我必须遵守一些通用规则吗?我可以编写打扰" mgcv软件包的代码吗?

Are there any known issues? Are there general rules that I have to obey if I load various packages? Can I write code that "disturbed" the package mgcv?

推荐答案

将mgcv加载为第一个程序包解决了我的问题……很奇怪，但确实如此.

Loading mgcv as the first package solved my problem ... strange but true.

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