search for: tp4587343p4589304

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2012 Apr 25
3
Intercept between two lines
Dear List, I know this is not the first post on this topic, but I need basic help I guess. Assuming the simple case of two lines with one intercept, how can I make R calculate this intercept, NOT using locator(). par (xaxs="i", yaxs="i") plot( 1, bty="n" ,xlim=c(0,300) , ylim=c(0,300) , xlab="X", ylab="Y") curve(100-0.5*x, -50,250, add=T,