RGuide | Android新应用操作引导代码
kandi X-RAY | RGuide Summary
kandi X-RAY | RGuide Summary
Android新应用操作引导代码
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Top functions reviewed by kandi - BETA
- Initializes the view
- Add a high light view
- Show high light
- Given two views return the position of the view
- Creates the activity
- Parses the content of the current view
- Add view to layout
- Show next view
- Initialize view
- Add view for tooltip
- Builds the layout params for a specific view
- Called when the activity is created
- Helper method to set the RecyclerView
- On touch events
- Initializes the Activity
- To bitmap
- Show high light view
- Measure the dimensions
RGuide Key Features
RGuide Examples and Code Snippets
Community Discussions
Trending Discussions on RGuide
QUESTION
I'm working with formulas in a package, and I'd like to remove all non-numeric terms.
My problem is that, since the base formula may contain operations, I cannot evaluate some terms directly.
Here is a reprex:
...ANSWER
Answered 2019-Nov-11 at 14:30One option is to use eval(parse())
, i.e.
QUESTION
ANSWER
Answered 2019-Oct-29 at 06:00Have you tried select all in RStudio and then Ctrl-Shift-A to automatically reformat code?
QUESTION
I know how to use <-
and ->
, and there are several writeups on the difference between equals
assignment & arrow assignment, but I don't know when to prefer ->
over <-
.
It seems the community has coalesced around using <-
for assignment.
Neither the google R style-guide, nor Hadley Wickam's tidyverse R style-guide even mention ->
in the assignment section.
I'm curious about the design considerations that led the S/S-PLUS developers to put in the right arrow assign operator ->
. In what setting(s) would using ->
be considered more readable (or easier to type) versus <-
or =
?
I'm not familiar with any other language that allows the right-assignment semantics. What languages inspired R in this regard?
I'm looking for answers that cite books / early design documents / user manuals / archived mailing lists or other references to establish what the S author/designer's intent was in putting in the forward-arrow assignment operator.
...ANSWER
Answered 2018-Jul-26 at 21:41I think it is just a matter of personal preference.
Although ->
predated magrittr pipes, one recent use case is that ->
can be used to keep the flow from left to right in such pipes:
QUESTION
I read the Google style guide for R. For "Assignment", they say:
Use <-, not =, for assignment.
GOOD:
x <- 5BAD:
x = 5
Can you tell me what the difference is between these two methods of assignment, and why one is to be preferred over the other?
...ANSWER
Answered 2017-Sep-03 at 19:23I believe there are two reasons. One is that <-
and =
have slightly different meanings depending on context. For example, compare the behavior of the statements:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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You can use RGuide like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the RGuide component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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