r - Using Geom_Bar in GGplot2 -


so i'm trying use geom_bar in ggplot2, , of cases see of people demonstrating online of comparative frequencies of things. chart i'm trying stacked bar graph 1 stacked bars

however, want vector of values. is, let's have vector

v=c(1,2,3,4)

instead of 4 bars, understand get, i'd stack of 4 bars top 1 one unit tall, , next 1 down 2 units tall (etc.). possible in r?

edit: here code i've used graph. it's yielding normal bar graph, not stacked version i'm looking for:

ggplot(data = v, aes(x = factor(x), y = y)) + geom_bar(aes(fill = factor(y)),stat = 'identity')

i think can start this:

v=data.frame(x="my stacked bar", y=c(1,2,3,4))  ggplot(data = v, aes(x = factor(x), y = y))+   geom_bar(aes(fill=factor(y)), stat="identity")

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