R shiny brushed points table blank NA rows
I am working on a shiny app where I allow a user to select the plotting criteria and then also allow them to brush the plot and see their selection in a table below. I have some NA values in my data. I have noticed that these NAs end up in my brushed point table as full rows of NA. I can remove these manually with something like this. However, I was wondering if I perhaps was doing something wrong on my brush that was causing this.
Code with a working example is below. I have also included an image of a brush selection demonstrating what I mean.
library(shiny)
library(tidyverse)
# replace some random values in mtcars with NA
set.seed(1)
mtnew <-
as.data.frame(lapply(mtcars, function(m)
m[sample(
c(TRUE, NA),
prob = c(0.8, 0.2),
size = length(m),
replace = TRUE
)]))
# set up UI that allows user to pick x and y variables, see a plot,
# brush the plot, and see a table based on the brush
ui <- fluidPage(
titlePanel("Shiny Test"),
sidebarLayout(
sidebarPanel(
selectInput("xvar",
"pick x",
choices = names(mtnew)),
selectInput("yvar",
"pick y",
choices = names(mtnew))),
mainPanel(
plotOutput("myplot",
brush = brushOpts(id = "plot_brush")),
tableOutput("mytable")
)
)
)
server <- function(input, output) {
output$myplot <- renderPlot({
ggplot(data = mtnew) +
geom_point(aes(x = !!rlang::sym(input$xvar),
y = !!rlang::sym(input$yvar)))
})
output$mytable <- renderTable({
brush_out <- brushedPoints(mtnew, input$plot_brush)
})
}
# Complete app with UI and server components
shinyApp(ui, server)
r shiny
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
add a comment |
I am working on a shiny app where I allow a user to select the plotting criteria and then also allow them to brush the plot and see their selection in a table below. I have some NA values in my data. I have noticed that these NAs end up in my brushed point table as full rows of NA. I can remove these manually with something like this. However, I was wondering if I perhaps was doing something wrong on my brush that was causing this.
Code with a working example is below. I have also included an image of a brush selection demonstrating what I mean.
library(shiny)
library(tidyverse)
# replace some random values in mtcars with NA
set.seed(1)
mtnew <-
as.data.frame(lapply(mtcars, function(m)
m[sample(
c(TRUE, NA),
prob = c(0.8, 0.2),
size = length(m),
replace = TRUE
)]))
# set up UI that allows user to pick x and y variables, see a plot,
# brush the plot, and see a table based on the brush
ui <- fluidPage(
titlePanel("Shiny Test"),
sidebarLayout(
sidebarPanel(
selectInput("xvar",
"pick x",
choices = names(mtnew)),
selectInput("yvar",
"pick y",
choices = names(mtnew))),
mainPanel(
plotOutput("myplot",
brush = brushOpts(id = "plot_brush")),
tableOutput("mytable")
)
)
)
server <- function(input, output) {
output$myplot <- renderPlot({
ggplot(data = mtnew) +
geom_point(aes(x = !!rlang::sym(input$xvar),
y = !!rlang::sym(input$yvar)))
})
output$mytable <- renderTable({
brush_out <- brushedPoints(mtnew, input$plot_brush)
})
}
# Complete app with UI and server components
shinyApp(ui, server)
r shiny
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
add a comment |
I am working on a shiny app where I allow a user to select the plotting criteria and then also allow them to brush the plot and see their selection in a table below. I have some NA values in my data. I have noticed that these NAs end up in my brushed point table as full rows of NA. I can remove these manually with something like this. However, I was wondering if I perhaps was doing something wrong on my brush that was causing this.
Code with a working example is below. I have also included an image of a brush selection demonstrating what I mean.
library(shiny)
library(tidyverse)
# replace some random values in mtcars with NA
set.seed(1)
mtnew <-
as.data.frame(lapply(mtcars, function(m)
m[sample(
c(TRUE, NA),
prob = c(0.8, 0.2),
size = length(m),
replace = TRUE
)]))
# set up UI that allows user to pick x and y variables, see a plot,
# brush the plot, and see a table based on the brush
ui <- fluidPage(
titlePanel("Shiny Test"),
sidebarLayout(
sidebarPanel(
selectInput("xvar",
"pick x",
choices = names(mtnew)),
selectInput("yvar",
"pick y",
choices = names(mtnew))),
mainPanel(
plotOutput("myplot",
brush = brushOpts(id = "plot_brush")),
tableOutput("mytable")
)
)
)
server <- function(input, output) {
output$myplot <- renderPlot({
ggplot(data = mtnew) +
geom_point(aes(x = !!rlang::sym(input$xvar),
y = !!rlang::sym(input$yvar)))
})
output$mytable <- renderTable({
brush_out <- brushedPoints(mtnew, input$plot_brush)
})
}
# Complete app with UI and server components
shinyApp(ui, server)
r shiny
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
I am working on a shiny app where I allow a user to select the plotting criteria and then also allow them to brush the plot and see their selection in a table below. I have some NA values in my data. I have noticed that these NAs end up in my brushed point table as full rows of NA. I can remove these manually with something like this. However, I was wondering if I perhaps was doing something wrong on my brush that was causing this.
Code with a working example is below. I have also included an image of a brush selection demonstrating what I mean.
library(shiny)
library(tidyverse)
# replace some random values in mtcars with NA
set.seed(1)
mtnew <-
as.data.frame(lapply(mtcars, function(m)
m[sample(
c(TRUE, NA),
prob = c(0.8, 0.2),
size = length(m),
replace = TRUE
)]))
# set up UI that allows user to pick x and y variables, see a plot,
# brush the plot, and see a table based on the brush
ui <- fluidPage(
titlePanel("Shiny Test"),
sidebarLayout(
sidebarPanel(
selectInput("xvar",
"pick x",
choices = names(mtnew)),
selectInput("yvar",
"pick y",
choices = names(mtnew))),
mainPanel(
plotOutput("myplot",
brush = brushOpts(id = "plot_brush")),
tableOutput("mytable")
)
)
)
server <- function(input, output) {
output$myplot <- renderPlot({
ggplot(data = mtnew) +
geom_point(aes(x = !!rlang::sym(input$xvar),
y = !!rlang::sym(input$yvar)))
})
output$mytable <- renderTable({
brush_out <- brushedPoints(mtnew, input$plot_brush)
})
}
# Complete app with UI and server components
shinyApp(ui, server)
r shiny
r shiny
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
edited Jan 18 at 13:56
Nick Criswell
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
asked Jan 14 at 23:48
Nick CriswellNick Criswell
1,2201820
1,2201820
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%2f54190863%2fr-shiny-brushed-points-table-blank-na-rows%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%2f54190863%2fr-shiny-brushed-points-table-blank-na-rows%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
