How to assign unique symbols to each data point on a graph in R?

Asked Jul 24 '15 at 16:43

Active Jun 27 '16 at 09:53

Viewed 37 times

I have generated an interaction.plot using R but would like to know what code to input to assign individual pch symbols to each of my 8 "I" data points to better distinguish them.

Here's how my code looks at the moment:

interaction.plot(Background, Y, Total, xlab="Genetic Background", ylab="Mean 
Offpsring No.", type="b", pch=5)

Here's part of the dataset

Background  Y   Total
 B1         I1  53
 B1         I2  39
 B1         I3  41
 B1         I4  37
 B1         I5  50
 B1         I6  37
 B1         I7  39
 B1         I8  40
 B2         I1  45
 B2         I2  44
 B2         I3  52
 B2         I4  55
 B2         I5  37
 B2         I6  50
 B2         I7  47
 B2         I8  23

edited Jun 27 '16 at 09:53

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asked Jul 24 '15 at 16:43

Matthew Stephens

Please provide a [minimal reproducible example](http://stackoverflow.com/a/5963610/1412059). – Roland Jul 24 '15 at 16:58
Added a sample of the data. – Matthew Stephens Jul 24 '15 at 17:13
Obviously you haven't studied the instructions in the linked answer carefully. – Roland Jul 24 '15 at 17:15

How to assign unique symbols to each data point on a graph in R?

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