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I have the following data set: 

depth <- data.frame(Sample = c("AD_001", "AD_009", "AD_017", "AD_025", 
                           "AD_033", "AD_041", "AD_049", "AD_057", 
                           "AD_065", "AD_073", "AD_081", "AD_089"), 
                median = c(12, 13, 11, 12, 12, 12, 13, 13, 14, 15, 15, 13), 
                granular_first_quartile = c(5, 6, 5, 6, 5, 6, 6, 6, 7, 7, 7, 6), 
                granular_third_quartile = c(23, 25, 21, 22, 23, 23, 24, 25, 27, 28, 28, 24))

and would like to create a boxplot but, the graphs I'm generating do not have an equally separated x field. 

ggplot(depth, aes(as.factor(Sample))) + geom_boxplot(aes(middle = median, lower = granular_first_quartile, upper = granular_third_quartile, ymin = granular_first_quartile, ymax = granular_third_quartile), stat = 'identity') + coord_flip()

Thanks for the help!

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Similar Question 1 : ggplot2 boxplot

I am trying to plot boxplot using ggplot2. sample data is like this.

> sampe

count genotype
71       mt
50       mt
71       mt
95       wt
60       mt
63       mt
75       mt
82       wt
93       wt
87       wt
61       mt
102       wt
60       mt
78       wt
78       wt
87       wt
84       wt
104       wt
81       wt
85       mt


> qplot(factor(genotype),count,data=sampe,geom="boxplot")

The above command produces plot like this: enter image description here

what's wrong here?? why is it plotting like this?? Even this below code produces same output.

ggplot(sampe,aes(x=factor(genotype),y=count))+geom_boxplot()
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Similar Question 2 : Boxplot with ggplot2

I am working on a boxplot with forecast and observations which is quite long dataset. I am providing a sample format here.

> forecasts <- data.frame(f_type = c(rep("A", 9), rep("B", 9)), 
                          Date = c(rep(as.Date("2007-01-31"),3), rep(as.Date("2007-02-28"), 3), rep(as.Date("2007-03-31"), 3), rep(as.Date("2007-01-31"), 3), rep(as.Date("2007-02-28"), 3), rep(as.Date("2007-03-31"), 3)), 
                          value = c(10, 50, 60, 05, 90, 20, 30, 46, 39, 69, 82, 48, 65, 99, 75, 15 ,49, 27))
> 
> observation <- data.frame(Dt = c(as.Date("2007-01-31"), as.Date("2007-02-28"), as.Date("2007-03-31")), 
                            obs = c(30,49,57))

So far I have:

ggplot() + 
    geom_boxplot(data = forecasts,
                 aes(x = as.factor(Date), y = value, 
                     group = interaction(Date, f_type), fill = f_type)) +  
    geom_line(data = observations,
              aes(x = as.factor(Dt), y = obs, group = 1), 
              size = 2)

With this the box and whiskers are set by default. I want to assign these values so that I will know the extent of the whiskers. I have tried to pass a function with stat_summary with like:

f <- function(x) {
    r <- quantile(x, probs = c(0.05, 0.25, 0.5, 0.75, 0.95))
    names(r) <- c("ymin", "lower", "middle", "upper", "ymax")
    r
}

o <- function(x) {
    subset(x, x < quantile(x,probs = 0.05) | quantile(x,probs = 0.95) < x)
}

ggplot(forecasts, aes(x = as.factor(Date), y = value)) + 
    stat_summary(fun.data = f, geom = "boxplot", aes(group = interaction(Date, f_type), fill = f_type)) +
    stat_summary(fun.y = o, geom = "point")

But, with this the groups are messed up. This produces stacked up plots. Does anyone how to accomplish this?

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Similar Question 3 : annotate boxplot in ggplot2

I've created a side-by-side boxplot using ggplot2.

p <- ggplot(mtcars, aes(x=factor(cyl), y=mpg))
p + geom_boxplot(aes(fill=factor(cyl)))

I want to annotate with min, max, 1st quartile, median and 3rd quartile in the plot. I know geom_text() can do so and may be fivenum() is useful. But I cannot figure out how exactly I can do!. These values should be displayed in my plot.

Click to show 3 solutions

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