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gcclib
2003 Jun 18
3
finding contours in a matrix
Hi,
I have matrix of sea bottom depths that I am plotting in R with the function
'image'.
I am particularly interested in the 200m depth contour (I'm using 'distance
from this feature' as a covariate in a model) and would like to extract the
data at evenly
spaced points along it. I can easily superimpose a line at 200m using the
function 'contour'. What I
want to