[R] Scatter Plot Command Syntax Using Data.Frame Source
I've tried various commands. ?plot, Teetor's book, R Cookbook, and Mittal's book, R Graphs Cookbook without seeing how to write the command to create scatterplots from my data.frame. The structure is: str(chemdata) 'data.frame': 14886 obs. of 4 variables: $ site: Factor w/ 148 levels BC-0.5,BC-1,..: 104 145 126 115 114 128 124 2 3 3 ... $ sampdate: Date, format: 1996-12-27 1996-08-22 ... $ param : Factor w/ 8 levels As,Ca,Cl,..: 1 1 1 1 1 1 1 1 1 1 ... $ quant : num 0.06 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 ... and what I'd like to do is create scatter plots of quant (y-axis) against the factor site (x-axis) for specified param factors. Teetor has an example for a data set with two numeric variables and a single factor. I have a single numeric veriable, two factors, and a date. I'll also want to create time series line plots of values as a function of date for specified params. If the data.frame had only two columns all the examples work. But, using two columns (the number per site factor for only a specified param factor) is not covered in what I've read so far. Other graphing resources about which I should know? Rich __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Scatter Plot Command Syntax Using Data.Frame Source
Hi,
Below are a couple of options using a standard dataset,
str(iris)
## using base graphics
d - split(iris, iris$Species)
str(d) # list of 3 data.frames
par(mfrow=n2mfrow(length(d))) # split the device in 3 plotting regions
b.quiet - lapply(names(d), function(x) { # loop over the list names
with(d[[x]], plot(Sepal.Length, Petal.Length))
title(x)
})
library(ggplot2)
# using facetting
ggplot(iris) + facet_wrap(~Species) +
geom_point(aes(Sepal.Length, Petal.Length))
library(lattice)
# using facetting
xyplot(Petal.Length ~ Sepal.Length | Species, data=iris )
HTH,
baptiste
On 1 September 2011 08:50, Rich Shepard rshep...@appl-ecosys.com wrote:
I've tried various commands. ?plot, Teetor's book, R Cookbook, and
Mittal's book, R Graphs Cookbook without seeing how to write the command
to create scatterplots from my data.frame. The structure is:
str(chemdata)
'data.frame': 14886 obs. of 4 variables:
$ site : Factor w/ 148 levels BC-0.5,BC-1,..: 104 145 126 115 114
128 124 2 3 3 ...
$ sampdate: Date, format: 1996-12-27 1996-08-22 ...
$ param : Factor w/ 8 levels As,Ca,Cl,..: 1 1 1 1 1 1 1 1 1 1 ...
$ quant : num 0.06 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 ...
and what I'd like to do is create scatter plots of quant (y-axis) against
the factor site (x-axis) for specified param factors. Teetor has an example
for a data set with two numeric variables and a single factor. I have a
single numeric veriable, two factors, and a date.
I'll also want to create time series line plots of values as a function of
date for specified params.
If the data.frame had only two columns all the examples work. But, using
two columns (the number per site factor for only a specified param factor)
is not covered in what I've read so far.
Other graphing resources about which I should know?
Rich
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Scatter Plot Command Syntax Using Data.Frame Source
On Thu, 1 Sep 2011, baptiste auguie wrote: Below are a couple of options using a standard dataset, Thanks, Baptiste. These point me in the right direction. Rich __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Scatter Plot Command Syntax Using Data.Frame Source
Hi Rich, Using the data set iris as an example, you might also try require(car) scatterplot(Petal.Length ~ Sepal.Length | Species, data = iris) HTH, Jorge On Wed, Aug 31, 2011 at 4:50 PM, Rich Shepard wrote: I've tried various commands. ?plot, Teetor's book, R Cookbook, and Mittal's book, R Graphs Cookbook without seeing how to write the command to create scatterplots from my data.frame. The structure is: str(chemdata) 'data.frame': 14886 obs. of 4 variables: $ site: Factor w/ 148 levels BC-0.5,BC-1,..: 104 145 126 115 114 128 124 2 3 3 ... $ sampdate: Date, format: 1996-12-27 1996-08-22 ... $ param : Factor w/ 8 levels As,Ca,Cl,..: 1 1 1 1 1 1 1 1 1 1 ... $ quant : num 0.06 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 ... and what I'd like to do is create scatter plots of quant (y-axis) against the factor site (x-axis) for specified param factors. Teetor has an example for a data set with two numeric variables and a single factor. I have a single numeric veriable, two factors, and a date. I'll also want to create time series line plots of values as a function of date for specified params. If the data.frame had only two columns all the examples work. But, using two columns (the number per site factor for only a specified param factor) is not covered in what I've read so far. Other graphing resources about which I should know? Rich __** R-help@r-project.org mailing list https://stat.ethz.ch/mailman/**listinfo/r-helphttps://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/** posting-guide.html http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
