[問題] geom_point讀值出錯

看板R_Language作者rleaner (rleaner)時間8年前 (2017/02/24 19:20)推噓0(0推 0噓 7→)

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[目的]================================================ 已把各點的座標資料轉為如下矩陣: pm2.5_anime: [,1] [,2] [,3] [1,] "74DA3895C4C8" "74DA3895C2A6" "74DA3895C374" [2,] "24.215748" "24.198088" "24.196424" [3,] "120.526291" "120.523407" "120.547585" [4,] "49.3" "57.3" "57.2" [5,] "49.7" "56.3636363636364" "58.4" [6,] "50.3" "58.7" "57.8" pm2.5_anime[1,] -> 是各座標sensor的id pm2.5_anime[2,]、pm2.5_anime[3,] ->經緯度 pm2.5_anime[4~6,] 是該座標上不同時段的pm2.5的值希望能把pm2.5的值以geom_point顯示在 ggmap上,並用圖層疊加的方法做出動態地圖的效但geom_point讀值時出錯QAQ [程式]================================================ library(ggplot2) library(ggmap) library(mapproj) point_f <- data.frame(lng=pm2.5_anime[3,], lat=pm2.5_anime[2,] , siz=pm2.5_anime[4,] ) map <- get_map(location = c(lng=120.601,lat=24.179), zoom = 10, language = "zh-TW", maptype = "roadmap" ,scale = 1) ggmap(map)+ geom_point(data= point_f , aes( x =lng , y=lat),size= 10) [問題!!!]================================================ 在geom_point(data= point_f , aes( x =lng , y=lat),size= 10) 這行出問題錯誤息訊是: Error: Discrete value supplied to continuous scale google方法還是沒用, 求大大們幫幫忙 QAQ 還有那段錯誤倒底是什麼意思 >"< [環境]================================================ R version 3.3.2 (2016-10-31 win7 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.128.101.15 ※ 文章網址: https://www.ptt.cc/bbs/R_Language/M.1487935237.A.C32.html

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celestialgod

02/24 19:23, , 1^F

02/24 19:23, 1^F

嗯嗯~我是要畫在ggmap上我剛有試每個值要丟入pm2.5_anime時,用as.numeric去轉,如: pm2.5_anime <- matrix(NA,ncol= all_sensor,nrow = 9) for(i in 1:all_sensor){#make anime matrix pm2.5_anime[1,i] <- toString( MS_t$device_id[i+1]) pm2.5_anime[2,i] <- as.numeric(MS_t$lat[i+1]) pm2.5_anime[3,i] <- as.numeric(MS_t$lng[i+1]) } 但還是失敗 XD ※ 編輯: rleaner (140.128.101.15), 02/24/2017 19:32:17