search for: waterchem

I have a data frame with 1 factor, one date, and 37 numeric values: str(waterchem) 'data.frame': 3525 obs. of 39 variables: site : Factor w/ 64 levels "D-1","D-2","D-3",..: 1 1 1 1 1 ... $ sampdate : Date, format: "2007-12-12" "2008-03-15" ... $ CO3 : num 1 1 6.7 1 1 1 1 1 1 1 ... $ HCO3 : num...

I've successfully reformatted data frames from long to wide with reshape2, but this time I'm getting errors that I want to understand and resolve. Here's the data frame structure and the results of the melt() and dcast() functions: str(waterchem) 'data.frame': 128412 obs. of 8 variables: $ site : Factor w/ 64 levels "D-1","D-2","D-3",..: 1 1 1 1 1 1 1 ... $ sampdate: Date, format: "2007-12-12" "2007-12-12" ... $ preeq0 : logi TRUE TRUE TRUE TRUE TRUE TRUE ... $ param...

...R. My data has been restructured with a couple of awk scripts. The data frame structure now has a flag if the quantity is censored (ceneq1 column) as well as a lower and upper limit for censored data. For present purposes, interval censoring can be ignored. The data frame structure is now: str(waterchem) 'data.frame': 46551 obs. of 7 variables: $ site : Factor w/ 126 levels "BC-0.5","BC-1",..: 22 22 22 13 3 13 ... $ sampdate: Date, format: "1996-05-22" "1996-07-19" ... $ param : Factor w/ 58 levels "-0.100","AGP",..: 4...

...ructured with a couple of awk scripts. The data frame > structure now has a flag if the quantity is censored (ceneq1 column) as well > as a lower and upper limit for censored data. For present purposes, interval > censoring can be ignored. The data frame structure is now: > > str(waterchem) > 'data.frame': 46551 obs. of 7 variables: > $ site : Factor w/ 126 levels "BC-0.5","BC-1",..: 22 22 22 13 3 13 ... > $ sampdate: Date, format: "1996-05-22" "1996-07-19" ... > $ param : Factor w/ 58 levels "-0.100&quot...