Autocomplete based on slot inside S4 object
I'm trying to get RStudio column autocomplete to work with a custom S4 class. The class has slots data (a data.frame) and version (character), and a $ method which accesses the data slot, e.g.
setClass("MyDb", representation(data = "data.frame", version = "character"))
setMethod("$", signature = "MyDb",
function(x, name) return(x@data[[name]])
)
db <- new("MyDb", data = mtcars, version = "2.3.1")
Using db$mpg accesses db@data$mpg, as I expect, but using db$ doesn't bring up any autocomplete options in RStudio.
My approach is modelled after the sp package, for which I do see autocomplete options for the data slot in a SpatialPointsDataFrame, e.g.
library(sp)
data("meuse")
coordinates(meuse) <- ~ x + y
meuse$ # brings up autocomplete options for meuse@data slot
Is there a particular method or strategy I can use to enable autocomplete?
rstudio
asked Nov 14 '18 at 16:51
pbeepbee
1435
add a comment |
I'm trying to get RStudio column autocomplete to work with a custom S4 class. The class has slots data (a data.frame) and version (character), and a $ method which accesses the data slot, e.g.
setClass("MyDb", representation(data = "data.frame", version = "character"))
setMethod("$", signature = "MyDb",
function(x, name) return(x@data[[name]])
)
db <- new("MyDb", data = mtcars, version = "2.3.1")
Using db$mpg accesses db@data$mpg, as I expect, but using db$ doesn't bring up any autocomplete options in RStudio.
My approach is modelled after the sp package, for which I do see autocomplete options for the data slot in a SpatialPointsDataFrame, e.g.
library(sp)
data("meuse")
coordinates(meuse) <- ~ x + y
meuse$ # brings up autocomplete options for meuse@data slot
Is there a particular method or strategy I can use to enable autocomplete?
rstudio
asked Nov 14 '18 at 16:51
pbeepbee
1435
add a comment |
I'm trying to get RStudio column autocomplete to work with a custom S4 class. The class has slots data (a data.frame) and version (character), and a $ method which accesses the data slot, e.g.
setClass("MyDb", representation(data = "data.frame", version = "character"))
setMethod("$", signature = "MyDb",
function(x, name) return(x@data[[name]])
)
db <- new("MyDb", data = mtcars, version = "2.3.1")
Using db$mpg accesses db@data$mpg, as I expect, but using db$ doesn't bring up any autocomplete options in RStudio.
My approach is modelled after the sp package, for which I do see autocomplete options for the data slot in a SpatialPointsDataFrame, e.g.
library(sp)
data("meuse")
coordinates(meuse) <- ~ x + y
meuse$ # brings up autocomplete options for meuse@data slot
Is there a particular method or strategy I can use to enable autocomplete?
rstudio
asked Nov 14 '18 at 16:51
pbeepbee
1435
I'm trying to get RStudio column autocomplete to work with a custom S4 class. The class has slots data (a data.frame) and version (character), and a $ method which accesses the data slot, e.g.
setClass("MyDb", representation(data = "data.frame", version = "character"))
setMethod("$", signature = "MyDb",
function(x, name) return(x@data[[name]])
)
db <- new("MyDb", data = mtcars, version = "2.3.1")
Using db$mpg accesses db@data$mpg, as I expect, but using db$ doesn't bring up any autocomplete options in RStudio.
My approach is modelled after the sp package, for which I do see autocomplete options for the data slot in a SpatialPointsDataFrame, e.g.
library(sp)
data("meuse")
coordinates(meuse) <- ~ x + y
meuse$ # brings up autocomplete options for meuse@data slot
Is there a particular method or strategy I can use to enable autocomplete?
rstudio
rstudio
asked Nov 14 '18 at 16:51
pbeepbee
1435
asked Nov 14 '18 at 16:51
pbeepbee
1435
asked Nov 14 '18 at 16:51
pbeepbee
1435
asked Nov 14 '18 at 16:51
pbeepbee
1435
asked Nov 14 '18 at 16:51
pbeepbee
1435
1435
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Figured it out by cloning the sp library and systematically deleting stuff until the autocomplete stopped working. RStudio autocomplete seems to require a names method that gets exported in the package NAMESPACE, e.g.
# in MyDb.R
names.MyDb <- function(x) names(x@data)
# in NAMESPACE
S3method(names,MyDb)
answered Nov 14 '18 at 20:35
pbeepbee
1435
add a comment |
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%2f53305145%2fautocomplete-based-on-slot-inside-s4-object%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Figured it out by cloning the sp library and systematically deleting stuff until the autocomplete stopped working. RStudio autocomplete seems to require a names method that gets exported in the package NAMESPACE, e.g.
# in MyDb.R
names.MyDb <- function(x) names(x@data)
# in NAMESPACE
S3method(names,MyDb)
answered Nov 14 '18 at 20:35
pbeepbee
1435
add a comment |
Figured it out by cloning the sp library and systematically deleting stuff until the autocomplete stopped working. RStudio autocomplete seems to require a names method that gets exported in the package NAMESPACE, e.g.
# in MyDb.R
names.MyDb <- function(x) names(x@data)
# in NAMESPACE
S3method(names,MyDb)
answered Nov 14 '18 at 20:35
pbeepbee
1435
add a comment |
Figured it out by cloning the sp library and systematically deleting stuff until the autocomplete stopped working. RStudio autocomplete seems to require a names method that gets exported in the package NAMESPACE, e.g.
# in MyDb.R
names.MyDb <- function(x) names(x@data)
# in NAMESPACE
S3method(names,MyDb)
answered Nov 14 '18 at 20:35
pbeepbee
1435
Figured it out by cloning the sp library and systematically deleting stuff until the autocomplete stopped working. RStudio autocomplete seems to require a names method that gets exported in the package NAMESPACE, e.g.
# in MyDb.R
names.MyDb <- function(x) names(x@data)
# in NAMESPACE
S3method(names,MyDb)
answered Nov 14 '18 at 20:35
pbeepbee
1435
answered Nov 14 '18 at 20:35
pbeepbee
1435
answered Nov 14 '18 at 20:35
pbeepbee
1435
answered Nov 14 '18 at 20:35
pbeepbee
1435
1435
add a comment |
add a comment |
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%2f53305145%2fautocomplete-based-on-slot-inside-s4-object%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
