Hi there,

I am working on a project that requires me to find the point at which values
become negative in a sequence about the max.

For example, say I have some sequence:

x=c(-12, -2,-19, 0, -14, -2, 9,10,20,35,56,89,60,39,12,8,-5,-2,0,10)

In this sequence, the max is 89, and I need to identify that -2 and -5 are
the points at which the values* first *become negative about the max and
retrieve their index values.

I was hoping for some help in finding a way to automate this procedure, as I
have over 100 vectors of this kind where I must find the two values about
the max.

Could anyone help? I would really, really appreciate it!


Thank you so much!

Best,
Su

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