R: ggplot2 trouble reading a csv data file, object and mapping error

Question

I am new to using the ggplot2 package and am unfortunately having trouble with the basics. My data set is in a csv comma delimited file which has been working in R using plot functions but doesn't seem to be working in ggplot2. My csv file looks as follows:

Depth Min Max Average Mode
34    2   38  5.64    2
44    2   25  6.27    2
etc....

The code I am using is as follows:

Statsnineteen <- read.csv(file="C:/Users/Holly/Documents/Software Manuals/R
Stuff/Stats_nineteen.csv", header=TRUE, sep=",")
p1 <- ggplot(Max, Depth, data = Statsnineteen)
p1 <- p1 + layer(geom="path") + coord_flip()

It then comes up with the following error message between the two p1 lines:

Error in inherits(mapping, "uneval") : object 'Max' not found

I know it can read the table as when I use:

Statsnineteen <- read.table(file.....)
head(Statsnineteen, n=52)

It brings up my data table. Don't suppose anyone knows if there is a command I've missed out or if there is something wrong with my code? Thanks in advance for any help, Holly

nzcoops · Accepted Answer · 2012-08-16 12:16:54Z

2

I think what you need is

p1 <- ggplot(data = Statsnineteen, aes(x=Max, y=Dept))

answered Aug 16, 2012 at 12:16

nzcoops

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2 Comments

mnel Over a year ago

note that p1 <- qplot(Max, Depth, data = Statsnineteen) should also work. I think that the ggplot approach is much clearer.

Chris Over a year ago

If this answer has solved your problem please mark it as accepted. Doing so lets others know the question has been answered.

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