[R] Problems with lm()

Dear R-users: I am a new R-user and I have a question about lm function. Here is my data. a<-c(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14) b<-c(1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2) c<-c(2,1,1,2,2,1,1,2,2,1,1,2,2,1,1,2,2,1,1,2,2,1,1,2,2,1,1,2) d<-c(2,2,1,

[R] “Check” problem

Dear all: I ‘m a newer. I have some problem when I check my package. The error messages were as follows. It shows that the problem is about Rd file. How can I find where the error is? How can I do?? c:\temp>Rcmd check bear * checking for working pdflatex ... OK * using log directory 'c:/tem

[R] how to find and use specific column after spliting dataframe

Dear all: I am a new R-user and I have 2 questions about it. 1) I need to find specific sub-dataframe, and then use specific column to calculate. For example, after splitting dataframe, I find specific the sub-dataframe, such as “A.split [1]”. But, I don’t know how to find “time” and “co

[R] How to catch data from the different dataframes and lm problem?

Dear all: I am a new R-user and I have 2 questions about it. 1) I have a dataframe. Based on “formulation” and “subject”, a dataframe is split into 4 dataframes. The example is as follows. Moreover, I want to calculate “test” value for these 4 dataframes. My question is that the “test

[R] Type I SS and Type III SS problem

Dear all: I m a newer on R.  I have some problem when I use anova function.  I use anova function to get Type I SS results, but I also need to get Type III SS results.  However, in my code, there is some different between the result of Type I SS and Type III SS.  I don’t know why the “seqe” fact

[R] miscalculate AUC

Dear R-helper, I have subject 1, 2, 3 and formulation S, MF, MM. I have a problem in calculating AUC. The AUC (0~t) in formulation MF and MM were miscalculated, but I don’t know where my problem is. Here is my code and output. test<-function( InVVTestindex, separateWindows=TRUE)