I have been working through this example i found on http://www.geo.ut.ee/aasa/LOOM02331/R_idw_interpolation.html using my own dataframe OUT (see first 6 lines below) in the place of the examples´s estonia_air_temperature_2_test.
lon lat qBase37.0865134808465 -0.692368207180448 66.130.8513633622371 0.686395534722815 7.134.3094903360954 2.12361997538743 0.137.4456613167071 -0.572915837232157 19.330.2029582739752 -0.385730223740445 4.637.7012866144423 -0.758372705745858 0.8
When i get to this line it plots a grid
plot(grd, cex = 1.5, col = "grey")But the points in the following lines are not added to the plot.
points(OUT, col = "red", cex = 11,add=T,pch=16)The result from the example looks like this. The difference is that o font get the points plotted.
So why don't i get a similar result i.e. My points command yields nothing!!?
أكثر...
lon lat qBase37.0865134808465 -0.692368207180448 66.130.8513633622371 0.686395534722815 7.134.3094903360954 2.12361997538743 0.137.4456613167071 -0.572915837232157 19.330.2029582739752 -0.385730223740445 4.637.7012866144423 -0.758372705745858 0.8
When i get to this line it plots a grid
plot(grd, cex = 1.5, col = "grey")But the points in the following lines are not added to the plot.
points(OUT, col = "red", cex = 11,add=T,pch=16)The result from the example looks like this. The difference is that o font get the points plotted.

So why don't i get a similar result i.e. My points command yields nothing!!?
أكثر...