search for: pallen

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2011 Mar 17
4
Help with plotting a line that is multicoloured based on levels of a factor
...quot;green", type="l") lines(data$date[data$levels=="low"], data$flow[data$levels=="low"], col="blue", type="l") But the line fills in data gaps, so this doesn't work. Any help would be much appreciated! Thank you. -Pam Allen pallen at hatfieldgroup.com
2011 Mar 24
2
Help with creating a ts (time series) object with daily sampling values
Hi All, I have a data set of daily measurements of river flow. I would like to create a "ts" object from this data. Here's a sample data set: date <- as.Date(c(1:300), format="%Y") year=as.numeric(format(date, format = "%Y")) month=as.numeric(format(date, format = "%m")) julianday=as.numeric(format(date, format = "%j"))