R variable string replacement in a data frame

R variable string replacement in a data frame

Content Index :

R variable string replacement in a data frame
Tag : string , By : Tom Smith
Date : November 26 2020, 01:01 AM

No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Changing all values in a data frame with a data frame specifying replacement

Tag : r , By : Thx1138.6
Date : March 29 2020, 07:55 AM
hope this fix your issue I have a question that seems simple, but I can't seem to find an answer to this problem. I am trying to replace all values generated in a williams design (values 1 - 4) with a character string TRT1, TRT2, etc. , You could do:
d %>% mutate_each(funs(d2$treatmentName[match(.,d2$treatmentNo)]))
#  Period 1 Period 2 Period 3 Period 4
#1     TRT1     TRT2     TRT4     TRT3
#2     TRT2     TRT3     TRT1     TRT4
#3     TRT3     TRT4     TRT2     TRT1
#4     TRT4     TRT1     TRT3     TRT2
data.frame(apply(d, 2, lookup, d2))
data.frame(lapply(d, function(x) d2$treatmentName[match(x, d2$treatmentNo)]))
#  Period.1 Period.2 Period.3 Period.4
#1     TRT1     TRT2     TRT4     TRT3
#2     TRT2     TRT3     TRT1     TRT4
#3     TRT3     TRT4     TRT2     TRT1
#4     TRT4     TRT1     TRT3     TRT2

How to do sequential numeric/integer replacement with string in a data.frame in R?

Tag : r , By : user90210
Date : March 29 2020, 07:55 AM
Does that help Through the process of learning R and following up with my previous question and the answer, I am trying to figure it out how to do the sequential string replace in a data.frame in R. , You should use a temporary vector
res <- character(length(mtcars$hp))
res[mtcars$hp <100] <- "low"
res[mtcars$hp >=100 & mtcars$hp <200] <- "medium"
res[mtcars$hp >= 200] <- "high"
mtcars$hp <- res
df <- mtcars
#> [1] "numeric"
df$hp[df$hp <100] <- "low"
#> [1] "character"

Conditional replacement of a string in data frame

Tag : r , By : adrianmooreuk
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , , You need to use the ifelse() function.
DF$ID <- ifelse(DF$INT == 1,  gsub("^9", "8", DF$ID), DF$ID)
DF %>% 
if(DF$INT == "1") { }
if(use_new_function == "on"){ 

create a group variable in a data frame by a string variable starting from a certain value in R

Tag : r , By : KT.
Date : March 29 2020, 07:55 AM
will be helpful for those in need I have following data frame. , What about this:
data$group <- ifelse(substr(data$sub1,1,1)==2,1,2)

  sub1 x1 x2 group
1 2021 10 11     1
2 2121  5 12     1
3 M123  6 34     2
4 M143  7 56     2

In R, how can I collapse a string variable in a data frame, by a grouping variable? In other words, pasting vertically i

Tag : r , By : Saul
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
  • How will you sort strings in the following example?
  • How to parse a string (by a "new" markup) with R?
  • How to create idendical variables in MATLAB from an array of variable names?
  • How to append to a newly created string list in Ocaml the elements of the other string list, extended with "1"
  • Error in jq manual `jq '.[2:4]' <<< abcdefghi`?
  • Subtract a str column from a datetime column
  • How to plot values associated to a string array in a pandas df?
  • String decompression : Reduce time and space complexity
  • Extracting quoted part from string
  • How to Ignore Nested Brackets in a String in Lua?
  • Passing argument to lua function after evaluating function in string
  • How do I create a dictionary in OCaml that associates to each element of the first list the number of its occurences in
  • Regexp and String manipulation in BASH
  • Randomize characters in string but keep formatting
  • When using the MOV mnemonic to load/copy a string to a memory register in MASM, are the characters stored in reverse ord
  • How to determine the end of string in VFP 9?
  • Why is `str` encapsulated inside `String` instead of inside a `Box<str>`?
  • How to store large string literals to be used with the format macro without littering code?
  • Split string in Lua and print selected keys
  • validate contents of arraylist against string
  • Unable to extract String from df Column
  • Splitting strings in PowerShell
  • How can I make split(/\t/, $STRING) detect empty values when $STRING ends with "\t\t"?
  • How to format a string in YAML dump?
  • How to split the words in one column then integrate the words together in Python, i.e., two dimensional list to one dime
  • Changing EC2 Instance Type via Powershell
  • Find and replace text and wrap in "href"
  • How to replace repeated words with single word
  • converting camelCase strings to underscore in dart language
  • Creating new features from the data and time in a text variable
  • How to retrieve in cakephp3.7 the name as string of an image uploaded trough a form with blob column into a mysql databa
  • Undefined function 'ballerina/time:Time.toString'
  • How to fix "[thread1] SyntaxError: missing } after property list"
  • why do repe and repne do the same before movsb?
  • perl remove string block from file and save to file
  • Replace a character in a string in golang
  • Functional composition using for-comprehension results in Char instead of String
  • Specific search and replace with sed
  • change web browser URL property?
  • Efficient way to convert string to string representation of the binary
  • SELECT statement from two dataframes using RMySQL
  • Bash: Loop with if-statement
  • How to test for String with enter, apostrophe, quotation marks, many spaces etc when using robotframework
  • Resize string in Swift
  • How do I split/parse a URL string into an object?
  • ActionScript 3 - How do I get my String to convert to a Number?
  • Extract first k characters of string in prolog
  • Why Split behaves differently on different Strings?
  • Vectorize string concatenation in matlab
  • OS X Automator and shell issue
  • Does the same String value always amount to the same String reference in AS3?
  • Lpad with zero's in vbscript
  • Formatting string output in groovy
  • What does $d do in printf?
  • Passing string containing "%" to http.ResponseWriter causes variable missing
  • VBA Split function
  • Select first instance of a vector in a column
  • Why does pushing and printing the value in a register affect later comparisons of that register to another?
  • Swift REPL Unexpected Behaviour
  • Bash script to compare 2 files with different length strings
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com