Re: [R] sorting rows of dataframe

2010-05-12 Thread Dennis Murphy
Hi: First of all, look at str(dataframename) It sounds as though you need to convert Month to an ordered factor, something like df$Month <- ordered(df$Month, levels = month.abb) df$Month The second command is to check that the newly created factor orders the months appropriately. Here's a small

Re: [R] sorting rows of dataframe

2010-05-11 Thread David Winsemius
On May 11, 2010, at 10:44 PM, michael westphal wrote: Hello: I have a dataframe, where the first column in a month: Month CATCHMENT_ medmin max 1Apr Alknda01 71.68080 11.9406600 196.2753 2Apr Alknda02 69.44580 12.1065600 196.2753 3Apr ArialKhan 39.89310 5.8

[R] sorting rows of dataframe

2010-05-11 Thread michael westphal
Hello: I have a dataframe, where the first column in a month: Month CATCHMENT_ medmin max 1Apr Alknda01 71.68080 11.9406600 196.2753 2Apr Alknda02 69.44580 12.1065600 196.2753 3Apr ArialKhan 39.89310 5.8598700 175.4433 4AprArjun01 4.79652 0.0093336