All Questions
54 questions
1
vote
1
answer
40
views
Extracting an outcome or string from a 'frtest' object (FRAIR package in R)
I'm trying to run a simulation experiment using simulated functional response data. My goal is to use frair_test from the FRAIR package to test for type-II versus type-III functional responses within ...
- 109
2
votes
4
answers
84
views
how to populate column based on multiple types of strings in other column
I have a data set of behavioral data. I want to assign all the different behaviors as "aggressive", "submissive", "affiliative", or leave blank in a column of the data ...
- 41
0
votes
1
answer
40
views
Across columns with same suffix, sum if a there is a string match
I have a dataset of lake surveys:
structure(list(station_id = c("SB_L004", "SB_L005", "SB_P005",
"SB_P007", "SB_P008", "SB_P009", "...
- 3
0
votes
1
answer
43
views
R String column matching and adding
I have a dataset called code_book, and this dataset has a column named New Variable. The content of this column is strings. I want these strings to be the column names of another dataset, which is ...
- 79
0
votes
2
answers
64
views
Filtering multiple specific columns with multiple string criteria
i have a data set with different diagnosis codes for patients that i want to filter through and view the patients that contain any of the codes i am interested in. i am currently using the str_detect ...
0
votes
1
answer
65
views
How to combine strings in R with the `+` sign?
I have an if statment, that if an argument that is passed to the function, called case, is longer than 1, then the first colname of the data frame would be the combination of the first two values of ...
- 1,332
0
votes
1
answer
45
views
R incongruity when copying a column in R with ifelse
After loading lots of xlsx sheets of multiple workbooks, I want to create a double check of the tidiness and cleanliness of the data source. I created a data frame reading the worksheets as.numeric (...
- 83
0
votes
1
answer
42
views
how to tell R to detect structure at the beginning of the word across rows
Is there a way to combine the for loop, grep and case_when functions in the dplyr package to automate some tasks? As an example, I have a data frame in which the first column contains a gene symbol. ...
- 325
0
votes
1
answer
452
views
Using If else to check multiple columns and create a new column based on the response for string responses
I have the following dataset:
hairdf=data.frame(
id=c(1:4),
typedad=c("straight*","curly"),
colourdad=c("brown","black"),
typemom=c("curly",&...
- 13
1
vote
2
answers
1k
views
Replace empty / NA Values from data table with other values from the same data table in R
I would love to replace empty/NA values from a data table with other values that are shown in the variable of the same data table
So I have something like this:
Country
Nationality
currentLoc
AR
ES
RU
...
- 11
1
vote
3
answers
2k
views
Ifelse statement : if the strings starts or ends with a particular set of characters, delete them
I'm trying to remove some characters from the strings, but for some reason my code doesn't seem to work. I have the following data
data <- as.data.frame (structure(list(col_name = c("applexz&...
- 417
1
vote
4
answers
2k
views
How to use ifelse with str_detect across multiple columns
I have a dataframe that shows ICD-10 codes for people who have died (decedents). Each row in the data frame corresponds to a decedent, each of whom can have up to twenty conditions listed as ...
- 142
1
vote
1
answer
2k
views
Mutate variable if certain columns contain string in R
I have been struggling for hours with this dataset. I have searched for hours and tried many things, but I failed (I am a novice in R). So I really hope you guys can help me.
I have this dataset:
...
- 13
1
vote
2
answers
1k
views
Creating new numeric variable in R based on specific strings from character variable
I have a character variable in a data frame, and would like to create a new numeric variable in that data frame based on the existence of specific strings in that character variable.
I've figured out ...
- 119
1
vote
5
answers
3k
views
Create yes/no column based on values in two other columns
I have a dataset that looks like this:
df <- structure(list(ID = 1:10, Region1 = c("Europe", "NA",
"Asia", "NA", "Europe", "NA", "...
- 209