I have the following plot like below. It was created with this command:
library(ggplot2)
df <- data.frame(cond = factor(rep(c("A", "B"), each = 200)),
rating = c(rnorm(200), rnorm(200, mean=.8)))
ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
Now, I want to modify the legend title from cond into NEW LEGEND TITLE.
So, I just added the following line add the end of the above code:
+labs(colour="NEW LEGEND TITLE")
But it doesn't work. What's the right way to do it?
This should work:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
p <- p + guides(fill=guide_legend(title="New Legend Title"))
(or alternatively)
p + scale_fill_discrete(name = "New Legend Title")
I didn't dig in much into this but because you used fill=cond in ggplot(),
+ labs(color='NEW LEGEND TITLE')
might not have worked. However it you replace color by fill, it works!
+ labs(fill='NEW LEGEND TITLE')
This worked for me in ggplot2_2.1.0
Since you have two densitys I imagine you may be wanting to set your own colours with scale_fill_manual.
If so you can do:
df <- data.frame(x=1:10,group=c(rep("a",5),rep("b",5)))
legend_title <- "OMG My Title"
ggplot(df, aes(x=x, fill=group)) + geom_density(alpha=.3) +
scale_fill_manual(legend_title,values=c("orange","red"))
None of the above code worked for me.
Here's what I found and it worked.
labs(color = "sale year")
You can also give a space between the title and the display by adding \n at the end.
labs(color = 'sale year\n")
Since in your code you used ggplot(data, fill= cond) to create the histogram you need to add the legend title by also using "fill" in the label section i.e. +labs(fill="Title name"). If you were using a different type of plot where the code was ggplot(data, colour= cond), then you could use +labs(colour= "Title Name"). In summary, the lab argument has to match the aes argument.
I have used + guides(fill=guide_legend("my awesome title")) to change the legend title on geom_bar plots but it did not seem to work for geom_point.
There's another very simple answer which can work for some simple graphs.
Just add a call to guide_legend() into your graph.
ggplot(...) + ... + guide_legend(title="my awesome title")
As shown in the very nice ggplot docs.
If that doesn't work, you can more precisely set your guide parameters with a call to guides:
ggplot(...) + ... + guides(fill=guide_legend("my awesome title"))
You can also vary the shape/color/size by specifying these parameters for your call to guides as well.
I am using a facet_wrap in my ggplot and none of the suggested solutions worked for me except ArnaudA's solution:
qplot(…) + guides(color=guide_legend(title="sale year"))
Just to add to the list (the other options here didn't work for me), you can also use the function update_labels for ggplot:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
update_labels(p, list(colour="MY NEW LEGEND TITLE")
This will also allow you to change x- and y-axis labels, with separate lines:
update_labels(p, list(x="NEW X LABEL",y="NEW Y LABEL")
I noticed there are two ways to change/specify legend.title for ggboxplot():
library(ggpubr)
bxp.defaultLegend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco")
# Solution 1, setup legend.title directly in ggboxplot()
bxp.legend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco", legend.title="Dose (mg)")
# Solution 2: Change legend title and appearnace in ggboxplot() using labs() and theme() option:
plot1 <- bxp.defaultLegend + labs(color = "Dose (mg)") +
theme(legend.title = element_text(color = "blue", size = 10), legend.text = element_text(color = "red"))
ggarrange(list(bxp.legend, bxp.defaultLegend, plot1), nrow = 1, ncol = 3, common.legend = TRUE)
The code is modified based on the example from GitHub.
Adding this to the mix, for when you have changed the colors. This also worked for me in a qplot with two discrete variables:
p+ scale_fill_manual(values = Main_parties_color, name = "Main Parties")
The way i am going to tell you, will allow you to change the labels of legend, axis, title etc with a single formula and you don't need to use memorise multiple formulas. This will not affect the font style or the design of the labels/ text of titles and axis.
I am giving the complete answer of the question below.
library(ggplot2)
rating <- c(rnorm(200), rnorm(200, mean=.8))
cond <-factor(rep(c("A", "B"), each = 200))
df <- data.frame(cond,rating
)
k<- ggplot(data=df, aes(x=rating, fill=cond))+
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
# to change the cond to a different label
k$labels$fill="New Legend Title"
# to change the axis titles
k$labels$y="Y Axis"
k$labels$x="X Axis"
k
I have stored the ggplot output in a variable "k". You can name it anything you like. Later I have used
k$labels$fill ="New Legend Title"
to change the legend. "fill" is used for those labels which shows different colours. If you have labels that shows sizes like 1 point represent 100, other point 200 etc then you can use this code like this-
k$labels$size ="Size of points"
and it will change that label title.
Alas, none of these solutions worked for me. I am working with output from brms::conditional_effects()
My solution required:
+ labs( fill = "New Title", colour = "New Title", labels = "New Title" )
Many people spend a lot of time changing labels, legend labels, titles and the names of the axis because they don't know it is possible to load tables in R that contains spaces " ". You can however do this to save time or reduce the size of your code, by specifying the separators when you load a table that is for example delimited with tabs (or any other separator than default or a single space):
read.table(sep = '\t')
or by using the default loading parameters of the csv format:
read.csv()
This means you can directly keep the name "NEW LEGEND TITLE" as a column name (header) in your original data file to avoid specifying a new legend title in every plot.
The only solution that works with me :
p + guides(fill=guide_legend("New title")
Related
I have tried multiple solutions I found online but I think the issue is specific to the way I've written this code:
ggplot(Polarity_Subjectivity2, aes(x = Subjectivity, y = polabs)) + geom_point(aes(colour = factor(Stars))) + ylab("Polarity")
The legend is produced as "factor(Stars)" but I just want "Stars" and the few things I've tried have not managed to change the name. I've tried the following:
+ guides(fill=guide_legend(title="New Legend Title"))
+ scale_fill_discrete(name = "New Legend Title")
+ labs(fill='NEW LEGEND TITLE')
I have the following plot like below. It was created with this command:
library(ggplot2)
df <- data.frame(cond = factor(rep(c("A", "B"), each = 200)),
rating = c(rnorm(200), rnorm(200, mean=.8)))
ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
Now, I want to modify the legend title from cond into NEW LEGEND TITLE.
So, I just added the following line add the end of the above code:
+labs(colour="NEW LEGEND TITLE")
But it doesn't work. What's the right way to do it?
This should work:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
p <- p + guides(fill=guide_legend(title="New Legend Title"))
(or alternatively)
p + scale_fill_discrete(name = "New Legend Title")
I didn't dig in much into this but because you used fill=cond in ggplot(),
+ labs(color='NEW LEGEND TITLE')
might not have worked. However it you replace color by fill, it works!
+ labs(fill='NEW LEGEND TITLE')
This worked for me in ggplot2_2.1.0
Since you have two densitys I imagine you may be wanting to set your own colours with scale_fill_manual.
If so you can do:
df <- data.frame(x=1:10,group=c(rep("a",5),rep("b",5)))
legend_title <- "OMG My Title"
ggplot(df, aes(x=x, fill=group)) + geom_density(alpha=.3) +
scale_fill_manual(legend_title,values=c("orange","red"))
None of the above code worked for me.
Here's what I found and it worked.
labs(color = "sale year")
You can also give a space between the title and the display by adding \n at the end.
labs(color = 'sale year\n")
Since in your code you used ggplot(data, fill= cond) to create the histogram you need to add the legend title by also using "fill" in the label section i.e. +labs(fill="Title name"). If you were using a different type of plot where the code was ggplot(data, colour= cond), then you could use +labs(colour= "Title Name"). In summary, the lab argument has to match the aes argument.
I have used + guides(fill=guide_legend("my awesome title")) to change the legend title on geom_bar plots but it did not seem to work for geom_point.
There's another very simple answer which can work for some simple graphs.
Just add a call to guide_legend() into your graph.
ggplot(...) + ... + guide_legend(title="my awesome title")
As shown in the very nice ggplot docs.
If that doesn't work, you can more precisely set your guide parameters with a call to guides:
ggplot(...) + ... + guides(fill=guide_legend("my awesome title"))
You can also vary the shape/color/size by specifying these parameters for your call to guides as well.
I am using a facet_wrap in my ggplot and none of the suggested solutions worked for me except ArnaudA's solution:
qplot(…) + guides(color=guide_legend(title="sale year"))
Just to add to the list (the other options here didn't work for me), you can also use the function update_labels for ggplot:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
update_labels(p, list(colour="MY NEW LEGEND TITLE")
This will also allow you to change x- and y-axis labels, with separate lines:
update_labels(p, list(x="NEW X LABEL",y="NEW Y LABEL")
I noticed there are two ways to change/specify legend.title for ggboxplot():
library(ggpubr)
bxp.defaultLegend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco")
# Solution 1, setup legend.title directly in ggboxplot()
bxp.legend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco", legend.title="Dose (mg)")
# Solution 2: Change legend title and appearnace in ggboxplot() using labs() and theme() option:
plot1 <- bxp.defaultLegend + labs(color = "Dose (mg)") +
theme(legend.title = element_text(color = "blue", size = 10), legend.text = element_text(color = "red"))
ggarrange(list(bxp.legend, bxp.defaultLegend, plot1), nrow = 1, ncol = 3, common.legend = TRUE)
The code is modified based on the example from GitHub.
Adding this to the mix, for when you have changed the colors. This also worked for me in a qplot with two discrete variables:
p+ scale_fill_manual(values = Main_parties_color, name = "Main Parties")
The way i am going to tell you, will allow you to change the labels of legend, axis, title etc with a single formula and you don't need to use memorise multiple formulas. This will not affect the font style or the design of the labels/ text of titles and axis.
I am giving the complete answer of the question below.
library(ggplot2)
rating <- c(rnorm(200), rnorm(200, mean=.8))
cond <-factor(rep(c("A", "B"), each = 200))
df <- data.frame(cond,rating
)
k<- ggplot(data=df, aes(x=rating, fill=cond))+
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
# to change the cond to a different label
k$labels$fill="New Legend Title"
# to change the axis titles
k$labels$y="Y Axis"
k$labels$x="X Axis"
k
I have stored the ggplot output in a variable "k". You can name it anything you like. Later I have used
k$labels$fill ="New Legend Title"
to change the legend. "fill" is used for those labels which shows different colours. If you have labels that shows sizes like 1 point represent 100, other point 200 etc then you can use this code like this-
k$labels$size ="Size of points"
and it will change that label title.
Alas, none of these solutions worked for me. I am working with output from brms::conditional_effects()
My solution required:
+ labs( fill = "New Title", colour = "New Title", labels = "New Title" )
Many people spend a lot of time changing labels, legend labels, titles and the names of the axis because they don't know it is possible to load tables in R that contains spaces " ". You can however do this to save time or reduce the size of your code, by specifying the separators when you load a table that is for example delimited with tabs (or any other separator than default or a single space):
read.table(sep = '\t')
or by using the default loading parameters of the csv format:
read.csv()
This means you can directly keep the name "NEW LEGEND TITLE" as a column name (header) in your original data file to avoid specifying a new legend title in every plot.
The only solution that works with me :
p + guides(fill=guide_legend("New title")
I have the following plot like below. It was created with this command:
library(ggplot2)
df <- data.frame(cond = factor(rep(c("A", "B"), each = 200)),
rating = c(rnorm(200), rnorm(200, mean=.8)))
ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
Now, I want to modify the legend title from cond into NEW LEGEND TITLE.
So, I just added the following line add the end of the above code:
+labs(colour="NEW LEGEND TITLE")
But it doesn't work. What's the right way to do it?
This should work:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
p <- p + guides(fill=guide_legend(title="New Legend Title"))
(or alternatively)
p + scale_fill_discrete(name = "New Legend Title")
I didn't dig in much into this but because you used fill=cond in ggplot(),
+ labs(color='NEW LEGEND TITLE')
might not have worked. However it you replace color by fill, it works!
+ labs(fill='NEW LEGEND TITLE')
This worked for me in ggplot2_2.1.0
Since you have two densitys I imagine you may be wanting to set your own colours with scale_fill_manual.
If so you can do:
df <- data.frame(x=1:10,group=c(rep("a",5),rep("b",5)))
legend_title <- "OMG My Title"
ggplot(df, aes(x=x, fill=group)) + geom_density(alpha=.3) +
scale_fill_manual(legend_title,values=c("orange","red"))
None of the above code worked for me.
Here's what I found and it worked.
labs(color = "sale year")
You can also give a space between the title and the display by adding \n at the end.
labs(color = 'sale year\n")
Since in your code you used ggplot(data, fill= cond) to create the histogram you need to add the legend title by also using "fill" in the label section i.e. +labs(fill="Title name"). If you were using a different type of plot where the code was ggplot(data, colour= cond), then you could use +labs(colour= "Title Name"). In summary, the lab argument has to match the aes argument.
I have used + guides(fill=guide_legend("my awesome title")) to change the legend title on geom_bar plots but it did not seem to work for geom_point.
There's another very simple answer which can work for some simple graphs.
Just add a call to guide_legend() into your graph.
ggplot(...) + ... + guide_legend(title="my awesome title")
As shown in the very nice ggplot docs.
If that doesn't work, you can more precisely set your guide parameters with a call to guides:
ggplot(...) + ... + guides(fill=guide_legend("my awesome title"))
You can also vary the shape/color/size by specifying these parameters for your call to guides as well.
I am using a facet_wrap in my ggplot and none of the suggested solutions worked for me except ArnaudA's solution:
qplot(…) + guides(color=guide_legend(title="sale year"))
Just to add to the list (the other options here didn't work for me), you can also use the function update_labels for ggplot:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
update_labels(p, list(colour="MY NEW LEGEND TITLE")
This will also allow you to change x- and y-axis labels, with separate lines:
update_labels(p, list(x="NEW X LABEL",y="NEW Y LABEL")
I noticed there are two ways to change/specify legend.title for ggboxplot():
library(ggpubr)
bxp.defaultLegend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco")
# Solution 1, setup legend.title directly in ggboxplot()
bxp.legend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco", legend.title="Dose (mg)")
# Solution 2: Change legend title and appearnace in ggboxplot() using labs() and theme() option:
plot1 <- bxp.defaultLegend + labs(color = "Dose (mg)") +
theme(legend.title = element_text(color = "blue", size = 10), legend.text = element_text(color = "red"))
ggarrange(list(bxp.legend, bxp.defaultLegend, plot1), nrow = 1, ncol = 3, common.legend = TRUE)
The code is modified based on the example from GitHub.
Adding this to the mix, for when you have changed the colors. This also worked for me in a qplot with two discrete variables:
p+ scale_fill_manual(values = Main_parties_color, name = "Main Parties")
The way i am going to tell you, will allow you to change the labels of legend, axis, title etc with a single formula and you don't need to use memorise multiple formulas. This will not affect the font style or the design of the labels/ text of titles and axis.
I am giving the complete answer of the question below.
library(ggplot2)
rating <- c(rnorm(200), rnorm(200, mean=.8))
cond <-factor(rep(c("A", "B"), each = 200))
df <- data.frame(cond,rating
)
k<- ggplot(data=df, aes(x=rating, fill=cond))+
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
# to change the cond to a different label
k$labels$fill="New Legend Title"
# to change the axis titles
k$labels$y="Y Axis"
k$labels$x="X Axis"
k
I have stored the ggplot output in a variable "k". You can name it anything you like. Later I have used
k$labels$fill ="New Legend Title"
to change the legend. "fill" is used for those labels which shows different colours. If you have labels that shows sizes like 1 point represent 100, other point 200 etc then you can use this code like this-
k$labels$size ="Size of points"
and it will change that label title.
Alas, none of these solutions worked for me. I am working with output from brms::conditional_effects()
My solution required:
+ labs( fill = "New Title", colour = "New Title", labels = "New Title" )
Many people spend a lot of time changing labels, legend labels, titles and the names of the axis because they don't know it is possible to load tables in R that contains spaces " ". You can however do this to save time or reduce the size of your code, by specifying the separators when you load a table that is for example delimited with tabs (or any other separator than default or a single space):
read.table(sep = '\t')
or by using the default loading parameters of the csv format:
read.csv()
This means you can directly keep the name "NEW LEGEND TITLE" as a column name (header) in your original data file to avoid specifying a new legend title in every plot.
The only solution that works with me :
p + guides(fill=guide_legend("New title")
So this is my code for my ggplot. How do I easiest change the title of the legend? I know that I can just change my gg_group variable to my_title <- c(rep("train",10), rep("validation", 10)). But i want to just change the title to "whatever I want" without change any variables.
library(ggplot2)
y <- c(rnorm(10,1), rnorm(10,3))
x <- rep(seq(1,10,1),2)
gg_group <- c(rep("train",10), rep("validation", 10))
gg_data <- data.frame(y=y, x=x, gg_group=gg_group)
p <- ggplot(gg_data, aes(x=x, y=y, group=gg_group))
p + geom_line(aes(colour=gg_group))
I have also tried this code:
p + geom_line(aes(colour=gg_group)) +
scale_shape_discrete(name="Dataset",labels=c("Train", "Validation"))
But this does not work. *Edit, check great snwer from Jaap and JasonAizkalns.
#Jaap is correct. If you use scale_color_discrete you can change the name of the legend with name and you do not have to pass any arguments to labels as they will assume the names defined in your colour aesthetic. That is consider the differences between:
p + geom_line(aes(colour = gg_group)) +
scale_color_discrete(name = "Dataset")
and
p + geom_line(aes(colour = gg_group)) +
scale_color_discrete(name = "Dataset",
labels = c("New Label 01", "New Label 02"))
The reason it is not working is because you did not use a shape in your ggplot code. Instead you should use scale_color_discrete as follows:
scale_color_discrete("Dataset")
I have the following plot like below. It was created with this command:
library(ggplot2)
df <- data.frame(cond = factor(rep(c("A", "B"), each = 200)),
rating = c(rnorm(200), rnorm(200, mean=.8)))
ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
Now, I want to modify the legend title from cond into NEW LEGEND TITLE.
So, I just added the following line add the end of the above code:
+labs(colour="NEW LEGEND TITLE")
But it doesn't work. What's the right way to do it?
This should work:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
p <- p + guides(fill=guide_legend(title="New Legend Title"))
(or alternatively)
p + scale_fill_discrete(name = "New Legend Title")
I didn't dig in much into this but because you used fill=cond in ggplot(),
+ labs(color='NEW LEGEND TITLE')
might not have worked. However it you replace color by fill, it works!
+ labs(fill='NEW LEGEND TITLE')
This worked for me in ggplot2_2.1.0
Since you have two densitys I imagine you may be wanting to set your own colours with scale_fill_manual.
If so you can do:
df <- data.frame(x=1:10,group=c(rep("a",5),rep("b",5)))
legend_title <- "OMG My Title"
ggplot(df, aes(x=x, fill=group)) + geom_density(alpha=.3) +
scale_fill_manual(legend_title,values=c("orange","red"))
None of the above code worked for me.
Here's what I found and it worked.
labs(color = "sale year")
You can also give a space between the title and the display by adding \n at the end.
labs(color = 'sale year\n")
Since in your code you used ggplot(data, fill= cond) to create the histogram you need to add the legend title by also using "fill" in the label section i.e. +labs(fill="Title name"). If you were using a different type of plot where the code was ggplot(data, colour= cond), then you could use +labs(colour= "Title Name"). In summary, the lab argument has to match the aes argument.
I have used + guides(fill=guide_legend("my awesome title")) to change the legend title on geom_bar plots but it did not seem to work for geom_point.
There's another very simple answer which can work for some simple graphs.
Just add a call to guide_legend() into your graph.
ggplot(...) + ... + guide_legend(title="my awesome title")
As shown in the very nice ggplot docs.
If that doesn't work, you can more precisely set your guide parameters with a call to guides:
ggplot(...) + ... + guides(fill=guide_legend("my awesome title"))
You can also vary the shape/color/size by specifying these parameters for your call to guides as well.
I am using a facet_wrap in my ggplot and none of the suggested solutions worked for me except ArnaudA's solution:
qplot(…) + guides(color=guide_legend(title="sale year"))
Just to add to the list (the other options here didn't work for me), you can also use the function update_labels for ggplot:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
update_labels(p, list(colour="MY NEW LEGEND TITLE")
This will also allow you to change x- and y-axis labels, with separate lines:
update_labels(p, list(x="NEW X LABEL",y="NEW Y LABEL")
I noticed there are two ways to change/specify legend.title for ggboxplot():
library(ggpubr)
bxp.defaultLegend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco")
# Solution 1, setup legend.title directly in ggboxplot()
bxp.legend <- ggboxplot(ToothGrowth, x = "dose", y = "len",
color = "dose", palette = "jco", legend.title="Dose (mg)")
# Solution 2: Change legend title and appearnace in ggboxplot() using labs() and theme() option:
plot1 <- bxp.defaultLegend + labs(color = "Dose (mg)") +
theme(legend.title = element_text(color = "blue", size = 10), legend.text = element_text(color = "red"))
ggarrange(list(bxp.legend, bxp.defaultLegend, plot1), nrow = 1, ncol = 3, common.legend = TRUE)
The code is modified based on the example from GitHub.
Adding this to the mix, for when you have changed the colors. This also worked for me in a qplot with two discrete variables:
p+ scale_fill_manual(values = Main_parties_color, name = "Main Parties")
The way i am going to tell you, will allow you to change the labels of legend, axis, title etc with a single formula and you don't need to use memorise multiple formulas. This will not affect the font style or the design of the labels/ text of titles and axis.
I am giving the complete answer of the question below.
library(ggplot2)
rating <- c(rnorm(200), rnorm(200, mean=.8))
cond <-factor(rep(c("A", "B"), each = 200))
df <- data.frame(cond,rating
)
k<- ggplot(data=df, aes(x=rating, fill=cond))+
geom_density(alpha = .3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
# to change the cond to a different label
k$labels$fill="New Legend Title"
# to change the axis titles
k$labels$y="Y Axis"
k$labels$x="X Axis"
k
I have stored the ggplot output in a variable "k". You can name it anything you like. Later I have used
k$labels$fill ="New Legend Title"
to change the legend. "fill" is used for those labels which shows different colours. If you have labels that shows sizes like 1 point represent 100, other point 200 etc then you can use this code like this-
k$labels$size ="Size of points"
and it will change that label title.
Alas, none of these solutions worked for me. I am working with output from brms::conditional_effects()
My solution required:
+ labs( fill = "New Title", colour = "New Title", labels = "New Title" )
Many people spend a lot of time changing labels, legend labels, titles and the names of the axis because they don't know it is possible to load tables in R that contains spaces " ". You can however do this to save time or reduce the size of your code, by specifying the separators when you load a table that is for example delimited with tabs (or any other separator than default or a single space):
read.table(sep = '\t')
or by using the default loading parameters of the csv format:
read.csv()
This means you can directly keep the name "NEW LEGEND TITLE" as a column name (header) in your original data file to avoid specifying a new legend title in every plot.
The only solution that works with me :
p + guides(fill=guide_legend("New title")