All Questions
249
questions
0
votes
1
answer
33
views
Remove string from column across group of rows in another column
I would like to remove a string from one column across a group of rows in another column. In the below reprex, I would like to remove the string in snippet from the string in text in any row in the ...
- 557
4
votes
3
answers
81
views
How to extract birth and death year from string in R?
I have the first paragraph of Wikipedia articles from the wikifacts package (only for people). I like to extract birth year and year of death.
library(wikifacts)
library(tidyverse)
politicians <- ...
- 2,727
2
votes
1
answer
64
views
Extract *all* possible patterns in a variable
I have a large variable containing strings (words). I need to extract all substrings that contain any of the patters listed in a separate vector.
library(tidyverse)
df <- data.frame(Word = c("...
- 285
0
votes
3
answers
52
views
Flawed logic with RegEx and numeric ranges
I'm trying to create a new variable called 'group' in a dataset called 'data'. The variable 'group' should take the value "A" or "B" depending on how another variable in the ...
3
votes
3
answers
73
views
Removing second or third occurrence of a pattern from a string
I want to remove a specific letter from a string.
removing the first A works with str_remove(). But now I want to remove only the second and only the third A. Is there a function for that or any ...
- 31
1
vote
2
answers
128
views
tidyverse/dplyr solution for str_detect case/mutate
I have seen snippets of this floating around but sadly no full answers as of yet so thought I would ask.
I'm working on a function to assign a value based off the presence or absence of some key words ...
- 160
0
votes
2
answers
62
views
Undo the str_wrap()
I would like to un-wrap the wrapped text in r. However, it is not successful after as.character().
Here is a toy code:
t<-c("The adds fundamental principle”, The discriminatory ")
...
- 475
3
votes
3
answers
100
views
Is there a way to replace a group of strings with another group if strings via dplyr and stringr
I have reproduced a simple version of my problem. I essentially want to replace the English words in the statement column with the Spanish equivalent, for all statements.
library(tidyverse)
english &...
- 33
5
votes
5
answers
158
views
Order a number by increased digits [duplicate]
Apologize if it has been already asked but I'm trying to "change" the order of digits of numbers in a vector.
Let's take as an example this vector:
vector = c("5213456","...
- 385
1
vote
4
answers
66
views
Filter dataframe by string matching by row
Suppose the following dataframe :
data.frame(Var1=c("1 2 3","1 6","2 5 9","1 5 3"),Var2 = c("1 2","1 6 0 5","3 7",&...
- 385
0
votes
1
answer
69
views
Dynamic mutate case_when according to string matching
I have a vector which stores all possible merging combinations for a qualitative variable.
The vector has the following structure :
Config = c("4 With 1 + 6 With 2 + 8 With 3","4 With ...
- 385
0
votes
1
answer
47
views
Remove part of string in one column based on overlap with another column (context-dependent)
I have the following data where everything is a string:
Column A
Column B
"Do you like banana splits?"
"Do you like banana splits? Yes, I do"
"I am John"
"I am ...
0
votes
2
answers
57
views
Recombine characters strings and separate initals with a period using R and Regex
I have a list of authors that are all slightly formatted differently. My goal is to extract the different components of every character string. The different components are:
initials (usually all ...
- 155
2
votes
2
answers
33
views
Remove part of a string from a data.frame column
I'm working with a data.frame that contains one character column. I would like to make changes to some of the rows. For instance, on row 54 I would like to remove ", Energy Transport System ...
- 284
1
vote
1
answer
93
views
How to wrap values of a row into new line at specific character in R
I have a sample dataframe with values:
data <- structure(list(A = c("Date)", "Values"), B = c("2023-04-03", "Heat Capacity\nSpecific Heat Capacity\nHeat Index&...
- 134