ggnetwork::geom_nodes() requires more colors than there are nodes
Load ggnetwork, network, sna, igraph, and ggplot:
library(igraph)
library(network)
library(sna)
library(ggnetwork)
library(ggplot2)
Create an igraph object with five vertices and two edges:
test <- structure(list(5, TRUE, c(0, 3), c(4, 1), c(0, 1),
c(1, 0), c(0, 1, 1, 1, 2, 2),
c(0, 0, 1, 1, 1, 2),
list(c(1, 0, 1),
structure(list(),
.Names = character(0)),
list(name = c("3", "6", "7", "2", "1")),
list(weight = c(3.30310760667904, 3.55724789915966))), environment),
class = "igraph")
Check the number of nodes and edges:
igraph::ecount(test)
[1] 2
igraph::vcount(test)
[1] 5
The following code works (it should not work, notice that the number of color values in geom_nodes() is wrong, there should be five values, but 7 are given):
ggplot(test,aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color = 'black') +
geom_nodes(size =10, aes(color=1:7/(7))) +
scale_color_gradient(low = "green", high = "red")
If if the correct number of values for geom_nodes(aes(color= )) is used instead, an error is generated:
ggplot(test, aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color ='black') +
geom_nodes(size =10, aes(color=1:5/(5))) +
scale_color_gradient(low = "green", high = "red")
Error: Aesthetics must be either length 1 or the same as the data (7): colour
Notice that geom_nodes seems to require that |color| = |nodes| + |edges|, why is this?
Is there a way around this?
If there are 7 colors passed, how does it decide which 5 to use for the node colors?
r ggplot2 igraph sna ggnetwork
asked Nov 16 '18 at 1:47
mkkmkk
647
add a comment |
Load ggnetwork, network, sna, igraph, and ggplot:
library(igraph)
library(network)
library(sna)
library(ggnetwork)
library(ggplot2)
Create an igraph object with five vertices and two edges:
test <- structure(list(5, TRUE, c(0, 3), c(4, 1), c(0, 1),
c(1, 0), c(0, 1, 1, 1, 2, 2),
c(0, 0, 1, 1, 1, 2),
list(c(1, 0, 1),
structure(list(),
.Names = character(0)),
list(name = c("3", "6", "7", "2", "1")),
list(weight = c(3.30310760667904, 3.55724789915966))), environment),
class = "igraph")
Check the number of nodes and edges:
igraph::ecount(test)
[1] 2
igraph::vcount(test)
[1] 5
The following code works (it should not work, notice that the number of color values in geom_nodes() is wrong, there should be five values, but 7 are given):
ggplot(test,aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color = 'black') +
geom_nodes(size =10, aes(color=1:7/(7))) +
scale_color_gradient(low = "green", high = "red")
If if the correct number of values for geom_nodes(aes(color= )) is used instead, an error is generated:
ggplot(test, aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color ='black') +
geom_nodes(size =10, aes(color=1:5/(5))) +
scale_color_gradient(low = "green", high = "red")
Error: Aesthetics must be either length 1 or the same as the data (7): colour
Notice that geom_nodes seems to require that |color| = |nodes| + |edges|, why is this?
Is there a way around this?
If there are 7 colors passed, how does it decide which 5 to use for the node colors?
r ggplot2 igraph sna ggnetwork
asked Nov 16 '18 at 1:47
mkkmkk
647
add a comment |
Load ggnetwork, network, sna, igraph, and ggplot:
library(igraph)
library(network)
library(sna)
library(ggnetwork)
library(ggplot2)
Create an igraph object with five vertices and two edges:
test <- structure(list(5, TRUE, c(0, 3), c(4, 1), c(0, 1),
c(1, 0), c(0, 1, 1, 1, 2, 2),
c(0, 0, 1, 1, 1, 2),
list(c(1, 0, 1),
structure(list(),
.Names = character(0)),
list(name = c("3", "6", "7", "2", "1")),
list(weight = c(3.30310760667904, 3.55724789915966))), environment),
class = "igraph")
Check the number of nodes and edges:
igraph::ecount(test)
[1] 2
igraph::vcount(test)
[1] 5
The following code works (it should not work, notice that the number of color values in geom_nodes() is wrong, there should be five values, but 7 are given):
ggplot(test,aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color = 'black') +
geom_nodes(size =10, aes(color=1:7/(7))) +
scale_color_gradient(low = "green", high = "red")
If if the correct number of values for geom_nodes(aes(color= )) is used instead, an error is generated:
ggplot(test, aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color ='black') +
geom_nodes(size =10, aes(color=1:5/(5))) +
scale_color_gradient(low = "green", high = "red")
Error: Aesthetics must be either length 1 or the same as the data (7): colour
Notice that geom_nodes seems to require that |color| = |nodes| + |edges|, why is this?
Is there a way around this?
If there are 7 colors passed, how does it decide which 5 to use for the node colors?
r ggplot2 igraph sna ggnetwork
asked Nov 16 '18 at 1:47
mkkmkk
647
Load ggnetwork, network, sna, igraph, and ggplot:
library(igraph)
library(network)
library(sna)
library(ggnetwork)
library(ggplot2)
Create an igraph object with five vertices and two edges:
test <- structure(list(5, TRUE, c(0, 3), c(4, 1), c(0, 1),
c(1, 0), c(0, 1, 1, 1, 2, 2),
c(0, 0, 1, 1, 1, 2),
list(c(1, 0, 1),
structure(list(),
.Names = character(0)),
list(name = c("3", "6", "7", "2", "1")),
list(weight = c(3.30310760667904, 3.55724789915966))), environment),
class = "igraph")
Check the number of nodes and edges:
igraph::ecount(test)
[1] 2
igraph::vcount(test)
[1] 5
The following code works (it should not work, notice that the number of color values in geom_nodes() is wrong, there should be five values, but 7 are given):
ggplot(test,aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color = 'black') +
geom_nodes(size =10, aes(color=1:7/(7))) +
scale_color_gradient(low = "green", high = "red")
If if the correct number of values for geom_nodes(aes(color= )) is used instead, an error is generated:
ggplot(test, aes(x = x, y = y, xend = xend, yend = yend)) +
geom_edges(arrow = arrow(), color ='black') +
geom_nodes(size =10, aes(color=1:5/(5))) +
scale_color_gradient(low = "green", high = "red")
Error: Aesthetics must be either length 1 or the same as the data (7): colour
Notice that geom_nodes seems to require that |color| = |nodes| + |edges|, why is this?
Is there a way around this?
If there are 7 colors passed, how does it decide which 5 to use for the node colors?
r ggplot2 igraph sna ggnetwork
r ggplot2 igraph sna ggnetwork
asked Nov 16 '18 at 1:47
mkkmkk
647
asked Nov 16 '18 at 1:47
mkkmkk
647
edited Nov 16 '18 at 8:19
mkk
asked Nov 16 '18 at 1:47
mkkmkk
647
asked Nov 16 '18 at 1:47
mkkmkk
647
asked Nov 16 '18 at 1:47
mkkmkk
647
647
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53330320%2fggnetworkgeom-nodes-requires-more-colors-than-there-are-nodes%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53330320%2fggnetworkgeom-nodes-requires-more-colors-than-there-are-nodes%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
