search for: magnesiumflag

Displaying 1 result from an estimated 1 matches for "magnesiumflag".

2011 Dec 06
1
help wrapping findInterval into a function
...(WQdata$value, c(-Inf, 0.027, 0.1, 100, Inf))]),"")) WQdata$SodiumFlag <- with(WQdata, ifelse(analysis == "Sodium", (flags <- c("Y", 'Q', "", "A") [findInterval(WQdata$value, c(-Inf, 0.050, 0.125, 125, Inf))]),"")) WQdata$MagnesiumFlag <- with(WQdata, ifelse(analysis == "Magnesium", (flags <- c("Y", 'Q', "", "A") [findInterval(WQdata$value, c(-Inf, 0.065, 0.15, 75, Inf))]),"")) .....etc for additional water-quality analyses... } As an aside, I started working wi...