[R] How to fix the format in write.csv

By dafault, write.csv will change the characters such as 5/38 as a date May-38. How can I not change the format? Thanks. ChangJiang [[alternative HTML version deleted]] __ R-help@r-project.org mailing list

Re: [R] How to fix the format in write.csv

Read your Excel documentation. AFAIK, R just writes text files -- you need to tell Excel how to read them in. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert

Re: [R] How to fix the format in write.csv

ChangJiang: Open the .csv file with Notepad or other plain vanilla text processor, NOT EXCEL. You will find that the columns are text. Excel automatically converts them to dates. Read Excel's docs or get help from someone to learn how to convert the dates back to text. -- Bert Bert Gunter

Re: [R] How to fix the format in write.csv

Hi ChangJiang, Date conversion is one of the biggest headaches with Excel. Even if you import those data into Excel and then specify that the column should be text format, it won't convert the values back into what they originally were. Be aware that Excel may, when encountering dates from a

Re: [R] How to fix the format in write.csv

Thanks. I still didn't get the solution. For example, I have a data frame, called temp temp Chr Ref Var AFFUNAFF AFF.test pvalue 1 10 A G 2/1/240/0/1905/49 2.429e-09 2 18 G A 1/9/17 0/23/167 11/43 2.484e-04 3 1 G A 2/2/220/8/176

Re: [R] How to fix the format in write.csv

Hi I second Jim's comments. I have also been bitten by British being converted to American format as well as ANSI numeric to a date format which I did not want . And if you want to take a daily series from the 1890's to the 2000's caveat emptor. If you are dealing with dates use something that