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Hi, All: I try to type some long string in R console, whenever I like to change to a new line, I get error message. The following is my simple code -------------------------------------- h3 <- sqlQuery(myConnect, "select * from console where Error: syntax error byday = 'dd1'group by by hour") Error: syntax error --------------------------------------- Any Hints? Thanks.

...ad et al. 1993) to determine if a single relationship could be used across environments." I can not understand the "approximate F-test", and I donot know how to use this test to compare coefficients of regression in R. Does anyone know that? Thanks a lot in advance. -- Sincerely Guoqiang LI Agri521@gmail.com http://agri520.cn -- [[alternative HTML version deleted]]