error message when combine geom_ribbon and geom_point

[pharmpk]

Dear users,

I am using ggplot2 version 0.8.9 and I am encountering an error message "Error in eval(expr, envir, enclos) : object 'Lower' not found" with the following code to draw a graph with ribbons and points,

ggplot(qSum,aes(x=TSLD,ymin=Lower,ymax=Upper))+geom_ribbon(alpha=0.5,fill="blue")+
geom_point(data=nmData2,aes(TSLD,CONC))+
facet_wrap(~STDY,scales = "free")

The weird thing is that if remove the geom_point line, it works and the code is able to draw ribbons:

ggplot(qSum,aes(x=TSLD,ymin=Lower,ymax=Upper))+geom_ribbon(alpha=0.5,fill="blue")+
#geom_point(data=nmData2,aes(TSLD,CONC))+
facet_wrap(~STDY,scales = "free")

It was also confirmed that without geom_ribbon, the code for geom_points also works. Can anyone help to figure out what is the problem here. Thanks in advance!

qSum data looks like this

row.names	TSLD	STDY	Lower	Median	Upper
1	1	0.5	1052	1.19641540	3.3838900	9.0630550
2	6	1.0	1052	4.12836550	9.0883050	20.9402550
3	21	2.0	1052	10.40936150	20.7429000	38.2269500
4	31	3.0	1052	13.81247000	25.8043500	49.5525400
5	41	4.0	1052	14.38124900	30.5491500	52.0644200
6	51	5.0	1052	17.26439500	32.7088500	53.5060900
7	56	6.0	1052	15.36085500	30.2970500	58.9952550
8	61	8.0	1052	12.89921400	27.6986500	48.2900400
9	11	10.0	1052	13.02331000	24.0000000	43.8901450
10	16	12.0	1052	8.75698750	18.6719500	35.6992900
11	26	24.0	1052	1.28438195	4.0495450	13.1873085
12	36	36.0	1052	-0.01262037	0.7028475	3.4038680
13	46	48.0	1052	-0.04845877	0.2221467	0.8821970
14	2	0.5	1053	1.53637560	3.3497100	7.5664380
15	7	1.0	1053	4.06748750	8.7932550	20.1453500
16	22	2.0	1053	9.25480000	19.4430000	36.8088850

nmData2 looks like this

row.names	ID	STDY	SSM	TSLD	DOSE	CONC
1	12030	52001	1052	0	0.50	100	6.490
2	12031	52001	1052	0	1.00	100	23.300
3	12032	52001	1052	0	2.00	100	47.500
4	12033	52001	1052	0	3.00	100	62.600
5	12034	52001	1052	0	4.00	100	72.500
6	12035	52001	1052	0	5.00	100	50.600
7	12036	52001	1052	0	6.00	100	42.300
8	12037	52001	1052	0	8.00	100	56.700
9	12038	52001	1052	0	10.00	100	36.500
10	12039	52001	1052	0	12.00	100	22.900
11	12040	52001	1052	0	24.00	100	2.730
12	12041	52001	1052	0	36.00	100	0.443
13	12045	52001	1052	0	0.50	100	4.760
14	12046	52001	1052	0	1.00	100	23.800
15	12047	52001	1052	0	2.00	100	41.600
16	12048	52001	1052	0	3.00	100	55.200
17	12049	52001	1052	0	4.00	100	65.200
18	12050	52001	1052	0	5.00	100	70.100
19	12051	52001	1052	0	6.00	100	61.900
20	12052	52001	1052	0	8.00	100	45.300

 

[pharmpk]

Sorry that the column name should be moved to the right for one column

[Dennis Murphy]

Hi:

On Wed, Dec 5, 2012 at 8:35 PM, pharmpk <yanxia...@gmail.com> wrote:

Dear users,

I am using ggplot2 version 0.8.9 and I am encountering an error message "Error in eval(expr, envir, enclos) : object 'Lower' not found" with the following code to draw a graph with ribbons and points,

ggplot(qSum,aes(x=TSLD,ymin=Lower,ymax=Upper))+geom_ribbon(alpha=0.5,fill="blue")+
geom_point(data=nmData2,aes(TSLD,CONC))+
facet_wrap(~STDY,scales = "free")

Notice that you defined ymin and ymax as aesthetics in the *base* ggplot; it will expect to find these aesthetics in all subsequent layers. Redo the code as follows:

ggplot(qSum, aes(x = TSLD, y = CONC)) +

   geom_ribbon(aes(ymin = Lower, ymax = Upper), fill = "blue", alpha = 0.5) +

   geom_point() +

   facet_wrap(~ STDY, scales = "free") 

In this form. the common aesthetics are x and y, while ymin and ymax are specific to geom_ribbon().

The weird thing is that if remove the geom_point line, it works and the code is able to draw ribbons:

ggplot(qSum,aes(x=TSLD,ymin=Lower,ymax=Upper))+geom_ribbon(alpha=0.5,fill="blue")+
#geom_point(data=nmData2,aes(TSLD,CONC))+
facet_wrap(~STDY,scales = "free")

It was also confirmed that without geom_ribbon, the code for geom_points also works. Can anyone help to figure out what is the problem here. Thanks in advance!

qSum data looks like this

Presenting data of the form below in an e-mail is not productive; it's better to 

(a) dput() an R data object and either paste the result from the console to the e-mail or export it to a text file and attach it to the e-mail; e.g., dput(qSum)

(b) create plain text files such as csv files and attach them to the e-mail, or 

(c) if large, save the data object as an R binary with a .Rdata extension and attach to the mail; e.g. save(qSum, file = "qSum.Rdata")

Dennis

 

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[pharmpk]

Dear Dennis,

Thank you very much!

Xiaoyu