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]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.