Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged R
0
votes
366
views
1
answer
r - Smart way to chain ifelse statements?
When I have to chain ifelse statements, it looks like: ifelse(input=="x","x1", ifelse(input=="y","x2", ... just to make the code look better? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
230
views
1
answer
r - if {...} else {...} : Does the line break between "}" and "else" really matters?
I write my if {...} else {...} statement in R in the following way as I find it more readable. ... going on here? Thanks for your help. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
544
views
1
answer
r - rowSums but keeping NA values
I am pretty sure this is quite simple, but seem to have got stuck...I have two xts vectors that have ... getting NAs in the relevant places? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
407
views
1
answer
r - Sample by group using the sample_n function of dplyr
According to the dplyr help file the sample_n function samples a fixed number per group. When I run the ... to achieve this using dplyr? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
531
views
1
answer
r - trimws bug? leading whitespace not removed
Edit: Thanks to R Yoda, I was finally able to create a reproducible example to the issue I am facing: x = ... same as Encoding(" 11.132592")) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
448
views
1
answer
r - Data table error could not find function "."
I am trying to run the following piece of code. Whenever I try to run the code I get the following error: Error in ... .6.2 [8] tools_3.1.2 See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
620
views
1
answer
r - Add text outside plot area
Sample code library(ggplot2) ggplot(mtcars, aes(mpg, cyl, color = vs)) + geom_line() How if it is possible ... I wrote on it "arbitrary words" See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
442
views
1
answer
r - How can I pad a vector with NA from the front?
I want to make an existing vector size n and use NA. I know I can pad at the end of the vector like so: v1 <- 1:10 ... NA 1 2 3 4 5 6 7 8 9 10 See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
404
views
1
answer
r - data.table := assignments when variable has same name as a column
I found this strange behavior when assigning a value to a position. If the variable has the same name as a ... could not find function ".." See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
213
views
1
answer
r - How do I convert a wide dataframe to a long dataframe for a multilevel structure with 'quadruple nesting'?
I conducted a study that, in retrospect (one lives, one learns :-)) appears to generate multilevel data. Now ... pointers anybody can give!!! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
320
views
1
answer
r - Rotate a ggplot2 plot object
I would like to rotate a complete ggplot object 90°. I do not wish to use coord_flip as this appears to ... would likely need to use gridExtra. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
322
views
1
answer
r - Download.file fails in RStudio
file<-tempfile(fileext=".csv") download.file(url="ftp://pubftp.spp.org/Markets/DA/LMP_By_SETTLEMENT_LOC/2014/03/28 ... know what the problem is. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
456
views
1
answer
r - How can I use functions returning vectors (like fivenum) with ddply or aggregate?
I would like to split my data frame using a couple of columns and call let's say fivenum on each group. aggregate( ... Max = max(Petal.Width) ) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
314
views
1
answer
r - Converting two columns of date and time data to one
I have a simple data frame: D <- c("2012/12/14", "2012/12/14") Time <- c("18:40:37", "18:40:48" ... year, time. How would I go about doing this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
304
views
1
answer
r - split character columns and get names of field in string
I need to split a column that contains information into several columns. I'd use tstrsplit but the same kind of ... go with a dplyr/tidyr way) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
552
views
1
answer
r - Why does plot not respect add = TRUE?
Why does R's base plot function do this? We have to use points or lines, which needs special code rather ... /r-devel/2008-March/048650.html See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
271
views
1
answer
r - Tidy data.frame with repeated column names
I have a program that gives me data in this format toy file_path Condition Trial.Num A B C ID A B C ID A B C ID ... ", row.names = c(NA, -15L)) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
256
views
1
answer
r - Plot title at bottom of plot using ggplot2
In ggplot2, how to put the plot title at the bottom of the plot. qplot(rnorm(100)) + ggtitle("My Title") ... at middle and bottom of the plot. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
1.1k
views
1
answer
r - How to underline text in a plot title or label? (ggplot2)
Please pardon my ignorance if this is a simple question, but I can't seem to figure out how to underline any ... workaround, but it didn't help See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
297
views
1
answer
r - How to adapt a LaTex beamer theme to apply it in an rmarkdown::beamer_presentation
I would like to apply a LaTex beamer theme in an rmarkdown::beamer_presentation. The custom themes contains a ... 3mm} } mode<all> See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
291
views
1
answer
r - how to insert missing observations on a data frame
I have a data that are observations over time. Unfortunately, some large gaps of time points are missing on a ... edits made it clear. :) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
480
views
1
answer
r - Coerce logical (boolean) vector to 0 and 1
I have a numeric vector: a <- 1:4 # [1] 1 2 3 4 Check if values in 'a' is larger than 2: a > 2 ... = FALSE] <- 0 Are there any simpler methods? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
644
views
1
answer
r - Group rows in data frame based on time difference between consecutive rows
I have a data frame of this type YEAR MONTH DAY HOUR LON LAT 1860 10 3 13 -19.50 3.00 1860 ... properly according to the criteria stated above. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
331
views
1
answer
r - Replacing missing data in vector with existing data
I have a vector (I actually just retrieved individual columns from a dataframe) which has missing data in it. I ... temp[filledData[1]] } } See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
686
views
1
answer
r - ggplot2: Problem with x axis when adding regression line equation on each facet
Based on the example here Adding Regression Line Equation and R2 on graph, I am struggling to ... .github.com/kdauria/524eade46135f6348140 See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
386
views
1
answer
r - purrr:map and glm - issues with call
This issue is related to Pipe '.' dot causes trouble in glm call. purrr:map is wonderful for subgroup analysis ... should be fixed in base R. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
245
views
1
answer
r - Making Multiple Style References In Google Maps API
I cannot figure out how to make multiple style references in one ggmap() query from the Google Maps API ... questions or need any clarification! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
485
views
1
answer
r - Combine/merge columns while avoiding NA?
I have a really simple problem but haven't been able to find a solution. I am hoping someone can help. I ... big dataframe, i'd appreciate it! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
Page:
« prev
1
...
92
93
94
95
96
97
98
99
100
101
102
...
263
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] oracle中通过to_char对日期进行转换时报错
[2] inference - is conditioning only on propensity score sufficient to CATE estimation?
[3] Default value of toggle button
[4] echarts里的配置项很多都是重复的,有什么办法可以将通用的部分抽离出来方便复用吗?
[5] 网站在内网和外网的数据怎么同步?
[6] rabbitmq突然无法启动,erlang发生故障
[7] keras - Is there a way to create a "no prediction" catagory for low probablty predicitons on a multi-class classifcaiton problem?
[8] java源码中这个中国人是谁?
[9] js中用var和let定义循环变量输出,不是应该先输出5个5吗,结果却是01234,5个5
[10] java - Open project with several subprojects in intellij
2.1m
questions
2.1m
answers
60
comments
56.9k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...