YI LIU
2010-Jun-18 23:08 UTC
[R] Read data from .csv file and regression on dummy variables
Hi,
I need to regress the population on time slot and also days in advance.
A sample dataset is like this. I do not know whether I can attach a file in
this mailing list or not. If you know how to do it, I will be happy to send
you my data file.
time slot days in advance US EUR CHINA JAPAN
2 34 56 78 34
6:am-7am 5 12 34 35 54
7 39 43 57 38
2
7:am-8:am 5
7
....
The fist column is time slot and in .csv file, it is a merged unit. The
second column is days in advance, the value will only be 2,5 or 7. The other
four columns are population for different countries. I need to regress
the population on time slot and days in advance. Both are dummy variables.
Firstly, I guess I need to get the data organized. How can I extract the
population data and put it in one column and give the
corresponding information of time slot and days in advance in other two
columns.
Secondly, I know how to do linear regression on variables. But I do not know
the codes for dummy variable. Any tips?
Help for each step is welcomed.
Thank you folks!
[[alternative HTML version deleted]]
YI LIU
2010-Jun-18 23:09 UTC
[R] Read data from .csv file and regression on dummy variables
Hi,
I need to regress the population on time slot and also days in advance.
A sample dataset is like this. I do not know whether I can attach a file in
this mailing list or not. If you know how to do it, I will be happy to send
you my data file.
time slot days in advance US EUR CHINA JAPAN
2 34 56 78 34
6:am-7am 5 12 34 35 54
7 39 43 57 38
2
7:am-8:am 5
7
....
The fist column is time slot and in .csv file, it is a merged unit. The
second column is days in advance, the value will only be 2,5 or 7. The other
four columns are population for different countries. I need to regress
the population on time slot and days in advance. Both are dummy variables.
Firstly, I guess I need to get the data organized. How can I extract the
population data and put it in one column and give the
corresponding information of time slot and days in advance in other two
columns.
Secondly, I know how to do linear regression on variables. But I do not know
the codes for dummy variable. Any tips?
Help for each step is welcomed.
Thank you folks!
[[alternative HTML version deleted]]