search for: 3888l

...of the following data drawn by >matplot(t, pch=1) structure(c(2372L, 2494L, 2170L, 2238L, 1918L, 715L, 1573L, 2437L, 2481L, 1881L, 440L, 2165L, 343L, 121L, 597L, 1163L, 1459L, 2093L, 1454L, 1761L, 1872L, 174L, 2040L, 552L, 1403L, 6381L, 1649L, 4136L, 4415L, 10650L, 12111L, 4397L, 9593L, 7040L, 3888L, 8340L, 11475L, 11413L, 3985L, 1077L, 7723L, 1392L, 4099L, 4386L, 4737L, 1731L, 9246L, 7729L, 4264L, 6880L), .Dim = c(25L, 2L)) How can i encircle (locate), on the plotting window, the closest 3 point around any selected point. More precisely, for x=2372 and y=6381, which are the 3 closest points...

...L, 2313L, 2445L, 2577L, 2709L, 2841L, 2973L, 3105L, 3237L, 3369L, 3501L, 3633L, 3756L, 3877L, 3976L, 80L, 212L, 344L, 476L, 608L, 740L, 872L, 1004L, 1136L, 1268L, 1400L, 1532L, 1664L, 1796L, 1928L, 2060L, 2192L, 2324L, 2456L, 2588L, 2720L, 2852L, 2984L, 3116L, 3248L, 3380L, 3512L, 3644L, 3767L, 3888L, 3987L, 91L, 223L, 355L, 487L, 619L, 751L, 883L, 1015L, 1147L, 1279L, 1411L, 1543L, 1675L, 1807L, 1939L, 2071L, 2203L, 2335L, 2467L, 2599L, 2731L, 2863L, 2995L, 3127L, 3259L, 3391L, 3523L, 3655L, 3778L, 3899L, 102L, 234L, 366L, 498L, 630L, 762L, 894L, 1026L, 1158L, 1290L, 1422L, 1554L, 1686L,...