Plume Boundary Estimate: Error for Site25/1,4D.

[andrejadd]

Warning: Error in approx: need at least two non-NA values to interpolate
Stack trace (innermost first):
106: approx
105: as.data.frame [D:\1_Arbeit\1_GWSDAT\3_Shiny_Dev\GWSDAT/R/plotPlumeTimeSeries.R#288]
104: getHullDataPoints [D:\1_Arbeit\1_GWSDAT\3_Shiny_Dev\GWSDAT/R/plotPlumeTimeSeries.R#288]
103: plotPlumeEst [D:\1_Arbeit\1_GWSDAT\3_Shiny_Dev\GWSDAT/R/plotPlumeTimeSeries.R#321]
102: renderPlot [D:\1_Arbeit\1_GWSDAT\3_Shiny_Dev\GWSDAT/R/server.R#160]
92: reactive:plotObj
81: plotObj
80: origRenderFunc
79: output$plume_estimate_plot
4:
3: do.call
2: print.shiny.appobj
1: