Computation failed in `stat_smooth()`: object not found

[Moritz Camenzind]

Dear All,

I am trying to plot a logarithmic model to my data as follows:

ggplot(sub_tillers, aes(x = gdd, y = tillers))+
geom_line()+
geom_smooth(method = "lm", formula = tillers ~ log(ggd))

However, I get the following message (in German):

Computation failed in `stat_smooth()`:
Objekt 'tillers' nicht gefunden

The same code works perfectly, if I do not add the formula argument.

Added is my dataset and here my session info:

R version 3.4.4 (2018-03-15)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 17.10

Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/openblas/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/libopenblasp-r0.2.20.so

locale:
[1] LC_CTYPE=de_DE.UTF-8 LC_NUMERIC=C
LC_TIME=de_DE.UTF-8 LC_COLLATE=de_DE.UTF-8
[5] LC_MONETARY=de_DE.UTF-8 LC_MESSAGES=de_DE.UTF-8
LC_PAPER=de_DE.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
LC_MEASUREMENT=de_DE.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] grid stats graphics grDevices utils datasets methods
base

other attached packages:
[1] plyr_1.8.4 ggsnippets_1.0 digest_0.6.15 gridExtra_2.3
gtable_0.2.0 dplyr_0.7.4 tidyr_0.8.0 ggplot2_2.2.1

loaded via a namespace (and not attached):
[1] Rcpp_0.12.16 bindr_0.1.1 magrittr_1.5 munsell_0.4.3
colorspace_1.3-2 R6_2.2.2 rlang_0.2.0
[8] tools_3.4.4 yaml_2.1.18 lazyeval_0.2.1 assertthat_0.2.0
tibble_1.4.2 bindrcpp_0.2.2 purrr_0.2.4
[15] glue_1.2.0 labeling_0.3 compiler_3.4.4 pillar_1.2.1
scales_0.5.0 pkgconfig_2.0.1


I hope this info is sufficient and thanks a lot in advance,

Moritz Camenzind
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[Roman Luštrik]

You need to refer to the variables as you map them in aes. `tillers` should
become `y` and `gdd` `x`.

See?

ggplot(iris, aes(x = Sepal.Length, y = Petal.Length)) +

+ geom_point() +
+ geom_smooth(method = "lm", formula = Petal.Length ~ Sepal.Length)
Warning message:
Computation failed in `stat_smooth()`:
object 'Petal.Length' not found

ggplot(iris, aes(x = Sepal.Length, y = Petal.Length)) +

+ geom_point() +
+ geom_smooth(method = "lm", formula = y ~ log(x))
Cheers,
Roman

Dear All,
ggplot(sub_tillers, aes(x = gdd, y = tillers))+
geom_line()+
geom_smooth(method = "lm", formula = tillers ~ log(ggd))
Objekt 'tillers' nicht gefunden
The same code works perfectly, if I do not add the formula argument.
R version 3.4.4 (2018-03-15)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 17.10
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/openblas/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/libopenblasp-r0.2.20.so
[1] LC_CTYPE=de_DE.UTF-8 LC_NUMERIC=C
LC_TIME=de_DE.UTF-8 LC_COLLATE=de_DE.UTF-8
[5] LC_MONETARY=de_DE.UTF-8 LC_MESSAGES=de_DE.UTF-8
LC_PAPER=de_DE.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
LC_MEASUREMENT=de_DE.UTF-8 LC_IDENTIFICATION=C
[1] grid stats graphics grDevices utils datasets methods
base
[1] plyr_1.8.4 ggsnippets_1.0 digest_0.6.15 gridExtra_2.3
gtable_0.2.0 dplyr_0.7.4 tidyr_0.8.0 ggplot2_2.2.1
[1] Rcpp_0.12.16 bindr_0.1.1 magrittr_1.5 munsell_0.4.3
colorspace_1.3-2 R6_2.2.2 rlang_0.2.0
[8] tools_3.4.4 yaml_2.1.18 lazyeval_0.2.1 assertthat_0.2.0
tibble_1.4.2 bindrcpp_0.2.2 purrr_0.2.4
[15] glue_1.2.0 labeling_0.3 compiler_3.4.4 pillar_1.2.1
scales_0.5.0 pkgconfig_2.0.1
I hope this info is sufficient and thanks a lot in advance,
Moritz Camenzind
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[Moritz Camenzind]

Hi Roman

It works perfectly now.

Thanks a lot for your quick answer, it's much appreciated!

Have a nice day,
Moritz

Post by Roman Luštrik
You need to refer to the variables as you map them in aes. `tillers`
should become `y` and `gdd` `x`.
See?

ggplot(iris, aes(x = Sepal.Length, y = Petal.Length)) +

+ geom_point() +
+ geom_smooth(method = "lm", formula = Petal.Length ~ Sepal.Length)
object 'Petal.Length' not found

ggplot(iris, aes(x = Sepal.Length, y = Petal.Length)) +

+ geom_point() +
+ geom_smooth(method = "lm", formula = y ~ log(x))
Cheers,
Roman

Dear All,
ggplot(sub_tillers, aes(x = gdd, y = tillers))+
geom_line()+
geom_smooth(method = "lm", formula = tillers ~ log(ggd))
Objekt 'tillers' nicht gefunden
The same code works perfectly, if I do not add the formula argument.
R version 3.4.4 (2018-03-15)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 17.10
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/openblas/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/libopenblasp-r0.2.20.so
[1] LC_CTYPE=de_DE.UTF-8 LC_NUMERIC=C
LC_TIME=de_DE.UTF-8 LC_COLLATE=de_DE.UTF-8
[5] LC_MONETARY=de_DE.UTF-8 LC_MESSAGES=de_DE.UTF-8
LC_PAPER=de_DE.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
LC_MEASUREMENT=de_DE.UTF-8 LC_IDENTIFICATION=C
[1] grid stats graphics grDevices utils datasets methods
base
[1] plyr_1.8.4 ggsnippets_1.0 digest_0.6.15 gridExtra_2.3
gtable_0.2.0 dplyr_0.7.4 tidyr_0.8.0 ggplot2_2.2.1
[1] Rcpp_0.12.16 bindr_0.1.1 magrittr_1.5 munsell_0.4.3
colorspace_1.3-2 R6_2.2.2 rlang_0.2.0
[8] tools_3.4.4 yaml_2.1.18 lazyeval_0.2.1 assertthat_0.2.0
tibble_1.4.2 bindrcpp_0.2.2 purrr_0.2.4
[15] glue_1.2.0 labeling_0.3 compiler_3.4.4 pillar_1.2.1
scales_0.5.0 pkgconfig_2.0.1
I hope this info is sufficient and thanks a lot in advance,
Moritz Camenzind
--
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You received this message because you are subscribed to the ggplot2 mailing list.
https://github.com/hadley/devtools/wiki/Reproducibility
More options: http://groups.google.com/group/ggplot2
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"ggplot2" group.
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For more options, visit https://groups.google.com/d/optout.

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In God we trust, all others bring data.

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Please provide a reproducible example: https://github.com/hadley/devtools/wiki/Reproducibility

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More options: http://groups.google.com/group/ggplot2

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