CODEWITHSUNDEEP
rggplot2
Nannet
Nannet

Reputation: 15

Scatterplot with different shapes based on variable R

Hej!!

I have a dataset with three variables. The third variable contains NA. Example:

A <- c(1,2,5,6,8,9,2,5)
B <- c(9,4,6,2,8,4,6,9)
C <- c(1,2,NA,3,2,NA,NA,1)
df <- data.frame(A,B,C)

Now I would like to make a scatterplot from A and B with dots, and have the dots the size of C.

p <- ggplot(df, aes(y=B, x=A)) + geom_point(shape=1, size=C)
p

However now I get the warning message that 3 rows are removed because of missing values in C. This makes sense, but I would like to have these points also in the scatterplot, but then as a X. So I would like to have it look like:

enter image description here

Anyone who can help me how to do this in R?

Upvotes: 0

Views: 373

Answers (1)

Leonardo
Leonardo

Reputation: 2485

Try adding a column to your dataframe that controls the shape:

A <- c(1,2,5,6,8,9,2,5)
B <- c(9,4,6,2,8,4,6,9)
C <- c(1,2,NA,3,2,NA,NA,1)
D <- c(1,1,4,1,1,4,4,1)
df <- data.frame(A,B,C,D)

# replace NA with the value you want for the size of missing points
df[is.na(df)] <- 2

ggplot(df) + 
  geom_point(aes(y = B, x = A, size = C, shape = D)) + 
  scale_shape_identity()

In vector D the value 4 is not random, but is the value corresponding to the symbol x in shape.

Upvotes: 1

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