[R-sig-Geo] problem in reading NC file and plot it

[tony333]

require(raster);require(ncdf) 
# Assuming that the variable name is slp 
b <- brick(slp.mon.mean.nc, varname = 'slp') 
# now you can plot any of the time step using: 
plot(raster(b, layer = 1))# time step one 

But there might be several other ways to do what you want. 

Regards, 
Lars .
#############################################################
i use this method to plot slp.mon.mean.nc 
give me error 
 Error in .local(x, ...) : could not find function ".hasSlot"
Error in plot(raster(b, layer = 1)) : 
  error in evaluating the argument 'x' in selecting a method for function
'plot'
and i use 
image.plot(raster(b,layer=1))
the error is Error in .local(x, ...) : could not find function ".hasSlot"
 thanks for help

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