[R] pb with Date format using filled.contour

Hi R-help community, Can anyone tell me why, while using : x - seq(as.Date(2001-01-01),as.Date(2001-01-01) + nrow(volcano)-1,1) y - seq(1, ncol(volcano),1) when I plot the volcano matrix with that command : filled.contour(x,y,volcano) the graph has a Date format on X-axis, ok ...

Re: [R] Using filled.contour and contour functions together

Thanks to you, and to David Winsemius who replied, I finally found a solution, which works pretty fine : filled.contour(x,y,z, plot.axes = {axis(1); axis(2) ; contour(x,y,z2, add = T); contour(x,y,z2, nlevels = 1, level = 0, add = T, lwd = 1.5)}) Xavier -- View this message in context:

[R] Using filled.contour and contour functions together

Dear R help contributors, I'd like to plot ground temperature with time on X-axis and depth on Y-axis on this datasets ( http://r.789695.n4.nabble.com/file/n3301033/NEdaily.csv NEdaily.csv ), and to do so I use the following commands: library(RSEIS) xNE - seq(1,

[R] Contour plot with time on both X-axis (day) and on Y-axis (hours)

Hello all, I'd like to graphically represent an hourly temperature timeseries ( http://r.789695.n4.nabble.com/file/n3215785/data.csv data.csv , and see below for pre-process of the data) with the R functions image + contour. To do that I wrote that script :