Problem adding a smoother with qplot if requiring point at the same time

[Jeremy Colman]

`qplot(carat, price, data = dsmall, geom = c("smooth","point"))`

I get exactly what I should: smoothed line with standard error shading plus individual points.

If I don't want the shading, I try:

 `qplot(carat, price, data = dsmall, geom = c("smooth","point"),se = FALSE)`

I am working through Hadley's book "ggplot2" and in section 2.5.1 find that some of his code on adding a smoother with qplot does not work for me.

If I run:

`qplot(carat, price, data = dsmall, geom = c("smooth","point"))`

I get exactly what I should: smoothed line with standard error shading plus individual points.

If I don't want the shading, I try:

 `qplot(carat, price, data = dsmall, geom = c("smooth","point"),se = FALSE)`

I get: get:

Error: Unknown parameters: se But the parameter se miraculously becomes known if I drop the idea of "point":

`qplot(carat, price, data = dsmall, geom = c("smooth"),se = FALSE)`

yields a smoothed line without shading, just as it should.

What do I need to do to get points and smoothed line without shading?

I am using ggplot 2.1.0 and R version 3.2.3

A kind person on stackoverflow has suggested how I can achieve a smoother without the shading using ggplot2, but as the book chapter is about qplot I would like to know if it is still possible using qplot.

[Frans Marcelissen]

Hi Jeremy,

se only applies to the smooth geom. This works

qplot(carat, price, data = dsmall, geom='point')+geom_smooth(se=F)

But in general it is better to use ggplot and to use qplot only for quick and dirty plots.

Success!

Frans (DigiPsy)

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[Bryan Hanson]

And so you don’t think you are going crazy:  The capabilities of qplot were recently reduced deliberately.  It sounds like you are probably working through the original ggplot2 book.  At this point, it is quite outdated.  There is a newer version available online if have the tools to build it:

https://github.com/hadley/ggplot2-book

Happing Plotting.  Bryan

[Jeremy Colman]

Many thanks indeed for such quick replies. I am particularly grateful to Brian Hanson for reassuring me about my sanity. It is also good to have an answer to the question that has been in my mind since I first encountered ggplot, namely why am I being asked to learn about qplot? It is a pity that booksellers are still selling an out of date book though. I shall look forward to the new version.

Jeremy

[Jeremy Colman 2]

Bryan and Frans

Many thanks.

Jeremy

On 13 Apr 2016, at 11:27, Bryan Hanson <han...@depauw.edu> wrote:

https://github.com/hadley/ggplot2-book

[Stuart Luppescu]

On Wed, 2016-04-13 at 06:27 -0400, Bryan Hanson wrote:
> There is a newer version available online if have the tools to build
> it:
>
> https://github.com/hadley/ggplot2-book

Building this requires the oldbookdown package, which is not available
for R version 3.2.4, and is designated as "deprecated". Is there any
alternative?

--
Stuart Luppescu
Chief Psychometrician
UChicago Consortium on School Research
http://consortium.uchicago.edu

lu...@uchicago.edu

[Roman Luštrik]

Github page redirects to bookdown. Have you tried that?

Cheers,

Roman

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In God we trust, all others bring data.

[Hadley Wickham]

On Sat, Apr 16, 2016 at 7:10 PM, Stuart Luppescu <s...@ccsr.uchicago.edu> wrote:
> On Wed, 2016-04-13 at 06:27 -0400, Bryan Hanson wrote:
>> There is a newer version available online if have the tools to build
>> it:
>>
>> https://github.com/hadley/ggplot2-book
>
> Building this requires the oldbookdown package, which is not available
> for R version 3.2.4, and is designated as "deprecated". Is there any
> alternative?

Install it from https://github.com/hadley/oldbookdown

Hadley

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http://hadley.nz