No sir i get it now the amount of data related to unspecified shape has been removed.Because the number of values removed is equal to that unspecified group.So i can able to give it when given a specific shape for that variable
The polar chemicals group are not assigned because i allows max of 6 only
the only way i can bring back is by giving a specific symbol for that(ie.Polar chemicals)
is there any way to give a specific symbol for it?
Okay, well that's true. I wasn't aware of this, you are right you need to define the shapes when you have over 6 different conditions.
You can do this with scale_shape_manual(), e.g. add the line:
scale_shape_manual(values = c(0:6))
To have more control you can define the shapes you want to use, e.g.:
scale_shape_manual(values = c(0,1,2,3,4,5,6,8,10))
You can chose the numbers you want and look them up for example here: