Wie ändert man die Farbe der Linien in ggplot

Question

Ich habe eine Datenmatrix namens mymat. Unten ist die code Ich habe verwendet, um die Grafik für die Proben zu plotten (key.related.sheet). Was ich jetzt brauche, ist die Farbe der Linien zu ändern, die innerhalb des IBS-Bereichs von 0,8-1,5 in blau, 0,4-0,6 in rot und 0,1- (-0,1) in gelb und alles unter -0,1 in grün fallen. Wie können wir das tun?

Code

 library(data.table) 
     library(ggplot2) 
     library(dplyr) 
     cpp <- melt(as.data.table(mymat), measure = patterns("^IBS", "^Num_Good"), 
     value.name = c("IBS", "Num_Good")) %>% 
     .[, c("IBS", "Num_Good") := lapply(.SD, as.numeric), .SDcols = IBS:Num_Good] 
     ggplot(cpp, aes(x = Num_Good, y = IBS, col = key.related.sheet)) + 
     geom_line() + 
     #geom_vline(xintercept = 0)+ 
     geom_hline(yintercept = 0)+ 
     geom_hline(yintercept = 0.5)+ 
     geom_hline(yintercept = 1.0)+ 
     scale_colour_discrete(guide = FALSE) 

Daten

mymat<- structure(c("AOGC-02-0010:AOGC-02-0010", "AOGC-02-0010:AOGC-02-0022", 
"AOGC-02-0010:AOGC-02-0063", "AOGC-02-0010:AOGC-02-0079", "AOGC-02-0010:AOGC-02-0087", 
"AOGC-02-0010:AOGC-02-0105", "AOGC-02-0010:AOGC-02-0108", "AOGC-02-0010:AOGC-02-0112", 
"AOGC-02-0010:AOGC-02-0118", "AOGC-02-0010:AOGC-02-0161", "AOGC-02-0010:AOGC-02-0509", 
"AOGC-02-0010:AOGC-02-0512", "AOGC-02-0010:AOGC-02-0513", "AOGC-02-0010:AOGC-02-0522", 
"AOGC-02-0010:AOGC-02-0523", "AOGC-02-0010:AOGC-03-0094", "AOGC-02-0010:AOGC-03-0114", 
"AOGC-02-0010:AOGC-03-0122", "AOGC-02-0010:AOGC-03-0132", "AOGC-02-0010:AOGC-03-0138", 
"AOGC-02-0010:AOGC-05-0009", "1.12", "-0.00346", "0.0132", "0.0238", 
"0.00404", "-0.0201", "-0.00653", "-0.00466", "-0.00942", "-0.00484", 
"-0.0085", "-0.00231", "-0.03", "-0.0235", "-0.00412", "-0.0025", 
"-0.0111", "0.000753", "-0.0231", "-0.0205", "-0.0121", "67289", 
"52782", "51066", "46950", "47943", "51516", "59956", "57771", 
"52397", "58087", "54291", "33791", "24889", "65773", "65777", 
"51710", "55043", "50168", "64144", "64580", "57970", "1.13", 
"0.500283", "0.0108", "0.0227", "0.400507", "-0.0219", "-0.00914", 
"0.800371", "-0.0147", "-0.00372", "-0.00817", "-0.00983", "-0.0248", 
"-0.0205", "-0.012", "-0.0127", "-0.0107", "0.0106", "-0.026", 
"-0.023", "-0.900788", "53519", "42192", "40667", "37442", "38262", 
"40952", "47671", "45966", "41675", "46191", "43512", "27316", 
"20038", "52297", "52304", "41075", "43963", "39989", "51040", 
"51390", "46087", "1.12", "-0.00143", "0.00778", "0.0119", "0.00842", 
"-0.0237", "-0.0168", "0.00345", "-0.0112", "0.00414", "-0.00337", 
"-0.0097", "-0.0322", "-0.0275", "-0.0173", "-0.017", "-0.0081", 
"0.0256", "-0.0327", "-0.00254", "-0.0166", "26864", "21262", 
"20553", "18909", "19335", "20543", "23915", "23002", "20917", 
"23130", "22233", "14524", "10685", "26261", "26244", "20542", 
"22356", "20132", "25647", "25777", "23045", "1.15", "0.00715", 
"-0.00543", "0.0192", "0.0254", "-0.00775", "-0.00167", "0.00523", 
"-0.027", "0.0125", "0.00182", "-0.0262", "-0.0526", "-0.0178", 
"-0.0413", "-0.00793", "-0.00371", "0.0287", "-0.0141", "-0.00325", 
"-0.0199", "13923", "10935", "10434", "9755", "9929", "10669", 
"12505", "11958", "10818", "12048", "11064", "6635", "4757", 
"13599", "13612", "10740", "11252", "10394", "13261", "13371", 
"12042", "1.14", "-0.0122", "0.0103", "0.0189", "0.04", "0.0084", 
"0.0227", "-0.0101", "-0.0328", "-0.0134", "-0.00669", "-0.0421", 
"-0.0442", "-0.00531", "-0.044", "0.0526", "-0.00056", "0.0221", 
"0.0182", "0.0259", "-0.0362", "7240", "5750", "5535", "5151", 
"5202", "5567", "6525", "6231", "5618", "6291", "5892", "3645", 
"2674", "7084", "7084", "5567", "5962", "5481", "6925", "7004", 
"6279", "1.18", "0.0143", "-0.0763", "-0.00882", "0.0526", "-0.0195", 
"-0.0531", "-0.00064", "-0.00616", "-0.00746", "0.0173", "-0.0795", 
"0.0041", "0.018", "-0.0522", "0.0767", "0.0476", "0.000252", 
"0.0456", "0.0377", "-0.0391", "3527", "2766", "2691", "2487", 
"2461", "2672", "3135", "3010", "2680", "3056", "2846", "1707", 
"1265", "3444", "3444", "2682", "2886", "2638", "3366", "3402", 
"2982"), .Dim = c(21L, 13L), .Dimnames = list(c("1", "2", "3", 
"4", "5", "6", "7", "8", "9", "10", "30", "31", "32", "33", "34", 
"35", "36", "37", "38", "39", "40"), c("key.related.sheet", "IBS_from:1305328SNPS", 
"Num_Good_SNPs_A:1305328SNPS", "IBS_from:1030725SNPS", "Num_Good_SNPs_A:1030725SNPS", 
"IBS_from:514953SNPS", "Num_Good_SNPs_A:514953SNPS", "IBS_from:257361SNPS", 
"Num_Good_SNPs_A:257361SNPS", "IBS_from:128603SNPS", "Num_Good_SNPs_A:128603SNPS", 
"IBS_from:64000SNPS", "Num_Good_SNPs_A:64000SNPS"))) 

Answer 1

, wenn Sie die Farbe nur Abschnitte der Linie ändern möchten, dann können Sie in etwa wie folgt hinzu:

cpp$cutoff = cut(cpp$IBS, 
    breaks = c(-Inf, -0.1, 0.1, 0.4, 0.6, 0.8, 1.5), 
    labels = c("GREEN", "YELLOW", "GREY", "RED", "BLACK", "BLUE")) 

und dann plotten wie folgt:

ggplot(cpp, aes(x = Num_Good, y = IBS, group = key.related.sheet, color = cutoff)) + 
    geom_line() + geom_point()+ 
    #geom_vline(xintercept = 0)+ 
    geom_hline(yintercept = 0)+ 
    geom_hline(yintercept = 0.5)+ 
    geom_hline(yintercept = 1.0)+ 
    scale_colour_discrete(guide = FALSE) 

Um die ganzen Linien die gleiche Farbe zu machen, hängt es davon ab, welche Farbe Sie annehmen und die Regeln um das.

Aber Sie würden wahrscheinlich die Daten dafür gruppieren und zusammenfassen.