我有一個數據集有57個位置「家」,每個位置我有10個其他位置的「氣象站」,以近英里排列。然後我有一個有氣象站在四周的房屋周圍的象限。 我想在R中編寫代碼,它需要最近的氣象站和它的象限,然後在不同的象限中選取下一個最接近的,第三個在不同的象限中。所以我有一個基於最近站點的三角形。在R中的兩個變量過濾
loc station nearness quadrant
1 Abilene-KS SALINA MUNICIPAL AIRPORT 1 2
2 Abilene-KS MARSHALL ARMY AIRFIELD 2 1
3 Abilene-KS MULTI PURPOSE RANGE 3 1
4 Abilene-KS MANHATTAN REGIONAL AIRPORT 4 3
5 Abilene-KS MANHATTAN 6 SSW 5 1
6 Abilene-KS BLOSSER MUNICIPAL AIRPORT 6 4
7 Abilene-KS NEWTON-CITY-COUNTY AIRPORT 7 1
8 Abilene-KS EMPORIA MUNICIPAL AIRPORT 8 2
9 Abilene-KS HUTCHINSON MUNICIPAL ARPT 9 4
10 Abilene-KS COLONEL JAMES JABARA ARPT 10 3
11 Archbold-OH SALINA MUNICIPAL AIRPORT 1 2
12 Archbold-OH MARSHALL ARMY AIRFIELD 2 1
13 Archbold-OH MULTI PURPOSE RANGE 3 3
14 Archbold-OH MANHATTAN REGIONAL AIRPORT 4 1
15 Archbold-OH MANHATTAN 6 SSW 5 4
16 Archbold-OH BLOSSER MUNICIPAL AIRPORT 6 4
17 Archbold-OH NEWTON-CITY-COUNTY AIRPORT 7 2
18 Archbold-OH EMPORIA MUNICIPAL AIRPORT 8 1
19 Archbold-OH HUTCHINSON MUNICIPAL ARPT 9 3
20 Archbold-OH COLONEL JAMES JABARA ARPT 10 2
我想我可以說,我有一些代碼來說明我已經試過,但一切都已經得到了我無處使我迷路了。有任何想法嗎?
對於這兩個位置,我想與
loc station nearness quadrant
1 Abilene-KS SALINA MUNICIPAL AIRPORT 1 2
2 Abilene-KS MARSHALL ARMY AIRFIELD 2 1
3 Abilene-KS MANHATTAN REGIONAL AIRPORT 4 3
4 Archbold-OH SALINA MUNICIPAL AIRPORT 1 2
5 Archbold-OH MARSHALL ARMY AIRFIELD 2 1
6 Archbold-OH MULTI PURPOSE RANGE 3 3
所以對於第一個loc將保留行1,2和4,對於第二個loc行11,12和13,這是正確的嗎? – Lamia
是的,這是正確的 – Jeffkrop
你能粘貼你需要得到的預期結果嗎? – Onyambu