在geom_smooth，ggplot2中设置不同的线型 [英] Setting different linetypes in geom_smooth, ggplot2
问题描述
我试图为多元回归模型设置一个图表，看起来像这样：
subject iq condition RT
1 98 A 312
1 98 B 354
1 98 C 432
2 102 A 134
2 102 B 542
2 102 C 621
... ... ... ...
等等。 p>
我想在x轴上绘制iq，在y轴上绘制RT，并使用不同线条的不同线条（虚线，虚线，例如）条件。
到目前为止，我的代码如下所示：
+ theme_bw（）
+ labs（（） x =iq，y =反应次数）
+ scale_colour_manual（values = c（＃999999，＃000000），name =condition，breaks = c（A B，C），标签= c （easy，medium，hard））
现在，不知何故需要设置线型，但我不知道是否使用scale_linetype_manual，scale_linetype_discrete或其他。此外，我不知道如何使用正确的功能。
任何人都可以帮我解决这个问题吗？这太好了！
Ps：我已经尝试了各种各样的东西，但是R给了我一个颜色按照预期指定的情节，但是线型不会改变，但保持稳定，或者它给了我一些错误信息，比如在grid.Call.graphics（L_polygon，x $ x，...）中的
Fehler， x $ y，index）：
ungültigerLinientyp：mussLänge2，4，6，or 8 haben
我猜英文应该是像
grid.Call.graphics中的错误（L_polygon，x $ x ，x $ y，index）：
无效的线型：必须是长度2,4,6或8
scale_colour_manual 调用似乎是错误的：您只给出两个值而不是三个值。要正确衡量比例，您可以使用 scale_linetype_discrete（）进行自动缩放，或者使用 scale_linetype_manual（）手动设置线型。下面是这个例子：pre $
＃
DFplotlong< - read.table（text ='subject iq condition RT
1 98 A 312
1 98 B 354
1 98 C 432
2 102 A 134
2 102 B 542
2 102 C 621'，header = TRUE）
＃
ggplot（DFplotlong，aes（iq，RT，color = condition，linetype = condition））+
geom_point（）+
geom_smooth（method = lm，fullrange = TRUE，alpha = .15）+
theme_bw（）+
labs（x =iq，y =反应次数）+
scale_colour_manual（values = c（＃999999 ，＃000000，＃900009），
name =condition，
breaks = c（A，B，C），
labels = c（easy，medium，hard））+
scale_linetype_discrete（name =condition，
breaks = c（A，B，C），
labels = c（easy，medium，hard））
I am trying to set up a plot for a multiple regression model for data that look like this:
subject iq condition RT
1 98 A 312
1 98 B 354
1 98 C 432
2 102 A 134
2 102 B 542
2 102 C 621
... ... ... ...
and so on.
I would like to plot iq on the x-axis, RT on the y-axis, and use differently coloured lines with different linetypes (dashed, dotted, e.g.) for the different conditions.
Thus far, my code looks like this:
ggplot(DFplotlong, aes(iq, RT, colour = condition))
+ geom_smooth(method = lm, fullrange = TRUE, alpha = .15)
+ theme_bw()
+ labs(x = "iq", y = "reaction times")
+ scale_colour_manual(values=c("#999999","#000000"), name="condition", breaks=c("A", "B", "C"), labels = c("easy", "medium", "hard"))
Now, in addition I think I somehow need to set linetype, but I do not know whether to use scale_linetype_manual, scale_linetype_discrete, or whatever. Also, I would not know how to use the correct function.
Could anyone help me out on this one? That would be nice!
Ps: I have tried various things, but either R gives me a plot in which the colours are specified as intended, but linetypes do not change, but stay solid, or it gives me error messages such as
Fehler in grid.Call.graphics(L_polygon, x$x, x$y, index) :
ungültiger Linientyp: muss Länge 2, 4, 6, oder 8 haben
which I guess in English should be something like
Error in grid.Call.graphics(L_polygon, x$x, x$y, index) :
invalid linetype: must be length 2, 4, 6, or 8
It seems that all you are missing is the linetype = condition inside the aes() argument. In addition, your scale_colour_manual call seems to be wrong: you give only two values instead of three. To get the scales right, you can either use scale_linetype_discrete() for automatic scaling or scale_linetype_manual() for manually setting the linetypes. Here's the example:
#
DFplotlong <- read.table(text='subject iq condition RT
1 98 A 312
1 98 B 354
1 98 C 432
2 102 A 134
2 102 B 542
2 102 C 621', header=TRUE)
#
ggplot(DFplotlong, aes(iq, RT, colour = condition, linetype = condition)) +
geom_point() +
geom_smooth(method = lm, fullrange = TRUE, alpha = .15) +
theme_bw() +
labs(x = "iq", y = "reaction times") +
scale_colour_manual(values=c("#999999","#000000", "#900009"),
name="condition",
breaks=c("A", "B", "C"),
labels = c("easy", "medium", "hard")) +
scale_linetype_discrete(name="condition",
breaks=c("A", "B", "C"),
labels = c("easy", "medium", "hard"))
这篇关于在geom_smooth，ggplot2中设置不同的线型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
