match time stamps index

hi i have two vectors diffrent lengths with diffrent values

i want to match closest index in one vector to other

example :

v1 =

[1610759986514 1610759986549 1610759986583 1610759986618 ]

v2= [ 1610759986540 1610759986589]

so result should be in vector 1 match index 2,3 to v2 index 1,2 (time is close enough)

Answer 1

[Walter Roberson]

format long g
v1 = [1610759986514 1610759986549 1610759986583 1610759986618 ]

v1 = 1×4

1610759986514 1610759986549 1610759986583 1610759986618

v2 = [1610759986540 1610759986589]

v2 = 1×2

1610759986540 1610759986589

interp1(v1, 1:length(v1), v2, 'nearest', 'extrap')

ans = 1×2

2 3

interp1(v2, 1:length(v2), v1, 'nearest', 'extrap')

ans = 1×4

1 1 2 2