我正在尝试将两个折线图的配色方案更改为Wes Anderson调色板“ Moonrise 3”，但每次尝试时，它都不会更改颜色或给我错误消息。谁能指出我在哪里出问题了？对于第一个，问题是它根本不会改变颜色。对于第二组代码，是我无法弄清楚如何将调色板应用于渐变，从而使高色是一种颜色而低色是另一种颜色。
USQuarter <- ggplot(USAlong, aes(y = value, x = qdate, color = Year)) +
geom_line() +
geom_point() + labs(x = "Quarter/Year", y = "Hate Crime Incidents", title = "Hate Crimes in the United States")
USQuarter + scale_fill_manual(values = wes_palette("Moonrise3"))
这是第二个：
USA.data <- read.csv("USAdata.csv", sep=";")
View(USA.data)
USAHC <- ggplot() + geom_point(size=3) + geom_line(aes(y = HC.Annual.Total, x = Year, color = Year),data = USA.data)
USAHC + labs(x = "Year", y = "Hate Crimes Annual", title = "Hate Crimes in the United States")
USAHC + scale_color_gradient(low = "lavender", high = "purple")
