I am trying to change the attributes of the lowess lines fit to an xyplot command, but have been unsuccessful in my search of the online help. Right now, both the points and lowess line come out in the same color (blue). I am unsure how I can change the properties of the lowess line separately. xyplot ( SnowLineElevation ~ Year | Model, data = data, ylim = c(0,1800), type = c('p','smooth'), col = 'blue', pch = 21, xlab = 'Year', ylab = 'Snowline Elevation [m]' ) Any help would be much appreciated, Dave
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