Simple ?heatmap? of temperature in R (ggplot2) -

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I'm trying to create a simple date * Temperature heatmap (? Raster graph)? The temperature group is something like, but only with the date axis (no time variable.) I would like to use ggplot, but Running would be misleading. Data is produced in the right direction, but I can not understand how to get rid of Y-axis for. I appreciate any help 

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 Div class = "post-text" itemprop = "text"> 
 So you do not want to do  temporary  map on the Y axis? 
 
 Ok, You can use a fixed value and skip the y-axis: 
 
  dat <- data.frame (temp = sample (20,100, location = TRUE), date = Required (ggplot2) ggplot (dat, aes (x = date, y = 1)) as the (as.Date ("2011-07-01"), = 1, len = 100) + geom_tile (aes (fill = Temp) + scale_fill_gradient (low = "blue", high = "red") + Labs (y = null) + scale_y_continuous (break = null)  
 
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