stringr | A fresh approach to string manipulation in R

 by   tidyverse R Version: v1.5.0 License: Non-SPDX

kandi X-RAY | stringr Summary

kandi X-RAY | stringr Summary

stringr is a R library. stringr has no bugs, it has no vulnerabilities and it has low support. However stringr has a Non-SPDX License. You can download it from GitHub.

Strings are not glamorous, high-profile components of R, but they do play a big role in many data cleaning and preparation tasks. The stringr package provide a cohesive set of functions designed to make working with strings as easy as possible. If you’re not familiar with strings, the best place to start is the chapter on strings in R for Data Science. stringr is built on top of stringi, which uses the ICU C library to provide fast, correct implementations of common string manipulations. stringr focusses on the most important and commonly used string manipulation functions whereas stringi provides a comprehensive set covering almost anything you can imagine. If you find that stringr is missing a function that you need, try looking in stringi. Both packages share similar conventions, so once you’ve mastered stringr, you should find stringi similarly easy to use.
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            kandi-support Support

              stringr has a low active ecosystem.
              It has 518 star(s) with 171 fork(s). There are 37 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 5 open issues and 340 have been closed. On average issues are closed in 51 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of stringr is v1.5.0

            kandi-Quality Quality

              stringr has 0 bugs and 0 code smells.

            kandi-Security Security

              stringr has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              stringr code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              stringr has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              stringr releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            Get all kandi verified functions for this library.

            stringr Key Features

            No Key Features are available at this moment for stringr.

            stringr Examples and Code Snippets

            No Code Snippets are available at this moment for stringr.

            Community Discussions

            QUESTION

            Can I add grouping line labels above my ggplot bar/column chart?
            Asked 2022-Mar-29 at 18:32

            I'm interested in adding grouping labels above my ggplot bar charts. This feature exists for data visualizations such as phylogenetic trees (in ggtree), but I haven't found a way to do it in ggplot.

            I've tried toying around with geom_text, and geom_label, but I haven't had success yet. Perhaps there's another package that enables this functionality? I've attached some example code that should be fully reproducible. I'd like the rating variable to go over the bars of the continents listed (spanning multiple continents).

            Any help is greatly appreciated! Thank you!

            P.S. pardon all the comments - I was writing a teaching tutorial.

            ...

            ANSWER

            Answered 2022-Mar-29 at 18:32

            One approach to achieve your desired result would be via geom_segment. To this end I first prepare a dataset containing the start and end positions of the segments to be put on top of the bars by rating group. Basically this involves converting the discrete locations to numerics.

            Afterwards it's pretty straightforward to add the segments and the labels.

            Source https://stackoverflow.com/questions/71666754

            QUESTION

            R command to extract text between two strings containing curly parentheses
            Asked 2022-Mar-19 at 11:54

            I am trying to use the R str_match function from the stringr library to extract the title in bibliographical entries like the following. Indeed, I need to extract the text between the
            "title={" and the "}," strings.

            a2
            [1] "@article{2020, title={Long noncoding RNA MEG3 decreases the growth of head and neck squamous cell carcinoma by regulating the expression of miR‐421 and E‐cadherin}, volume={9}, ISSN={2045-7634}, url={http://dx.doi.org/10.1002/cam4.3002}, DOI={10.1002/cam4.3002}, number={11}, journal={Cancer Medicine}, publisher={Wiley}, author={Ji, Yefeng and Feng, Guanying and Hou, Yunwen and Yu, Yang and Wang, Ruixia and Yuan, Hua}, year={2020}, month={Apr}, pages={3954–3963} }"

            I have used approaches like the following, but I get an error message:

            ...

            ANSWER

            Answered 2022-Mar-19 at 09:23

            Use the following regex.

            Source https://stackoverflow.com/questions/71536832

            QUESTION

            stringr::str_starts returns TRUE when it shouldn't
            Asked 2022-Mar-10 at 15:10

            I am trying to detect whether a string starts with either of the provided strings (separated by | )

            ...

            ANSWER

            Answered 2022-Mar-10 at 14:55

            I'm not familiar with the stringr version, but the base R version startsWith returns your desired result. If you don't have to use stringr, this may be a solution:

            Source https://stackoverflow.com/questions/71426011

            QUESTION

            Split String at First Occurrence of an Integer using R
            Asked 2022-Feb-09 at 09:40

            Note I have already read Split string at first occurrence of an integer in a string however my request is different because I would like to use R.

            Suppose I have the following example data frame:

            ...

            ANSWER

            Answered 2022-Feb-09 at 09:40

            You can use tidyr::extract:

            Source https://stackoverflow.com/questions/71027356

            QUESTION

            How to reset a numerical sequence after a new suffix in a R vector
            Asked 2021-Dec-24 at 21:06

            I have created a dataframe with a group column and an individual identifier which incorporates the group name and a number formatted to a standardised three digit code:

            ...

            ANSWER

            Answered 2021-Dec-24 at 18:56

            We may group by 'group', use substr to extract the first character from 'indiv' and use sprintf to format the sequence (row_number())

            Source https://stackoverflow.com/questions/70475655

            QUESTION

            How to find words in a string that have consecutive letters in R language
            Asked 2021-Dec-03 at 11:20

            There is a problem that I do not know how to solve.

            You need to write a function that returns all words from a string that contain repeated letters and the maximum number of their repetitions in a word.

            Visually, this stage can be viewed with the following example: "hello good home aboba" after processing should be hello good, and the maximum number of repetitions of a character in a given string = 2.

            The code I wrote from tries to find duplicate characters and based on this, extract words from a separate array, but something doesn't work. Help solve the problem.

            ...

            ANSWER

            Answered 2021-Dec-03 at 11:01
            text = "hello good home aboba"
            
            paste0(
              grep("(.)\\1{1,}", 
                   unlist(strsplit(text, " ")), 
                   value = TRUE),
              collapse = " ")
            
            [1] "hello good"
            

            Source https://stackoverflow.com/questions/70213057

            QUESTION

            How can we highlight cells in R shiny when we use the replace button?
            Asked 2021-Dec-03 at 00:43

            The code below reads a CSV file and displays the Datatable in the Main panel. The field in 'Column to search' is automatically detected. I've created a field named 'Replace' and a field called 'by' that can be used to replace certain values in a column's cell.

            I want to highlight that cell in any colour, preferably orange, wherever the values are replaced.

            Could someone please explain how I can do this in R shiny?

            CSV

            ...

            ANSWER

            Answered 2021-Dec-02 at 10:27

            I used the parameter selection from renderDT(). After changing my_data(), you can compare which positions were changed in relation with dat (where you stored the unchanged data.frame) and then pass them as coordinates to the selection parameter

            Source https://stackoverflow.com/questions/70150427

            QUESTION

            Transforming complete age from character to numeric in R
            Asked 2021-Dec-01 at 22:20

            I have a dataset with people's complete age as strings (e.g., "10 years 8 months 23 days) in R, and I need to transform it into a numeric variable that makes sense. I'm thinking about converting it to how many days of age the person has (which is hard because months have different amounts of days). So the best solution might be creating a double variable that would show age as 10.6 or 10.8, some numeric variable that carries the information that 10years 8month 5days is greater than 10years 7month 12days.

            Here is an example of the current variable I have

            ...

            ANSWER

            Answered 2021-Dec-01 at 21:26

            Split on space, then compute. Note, you might want to change the average days in a year, in a month as needed:

            Source https://stackoverflow.com/questions/70191127

            QUESTION

            How to strip down comma-separated strings to unique substrings
            Asked 2021-Nov-17 at 19:26

            I'm struggling to strip down comma-separated strings to unique substrings in a cleanly fashion:

            ...

            ANSWER

            Answered 2021-Nov-17 at 19:26

            You can use str_split to get the individual substrings, followed by unique to remove repeated strings. For example:

            Source https://stackoverflow.com/questions/69995001

            QUESTION

            How to use replace the first occurrences of a string only if it appears more than once in R?
            Asked 2021-Nov-14 at 21:39

            I have a strings that look like this:

            ...

            ANSWER

            Answered 2021-Oct-08 at 18:51

            We could use regular expressions with a lookahead assertion Regex lookahead, lookbehind and atomic groups.

            Source https://stackoverflow.com/questions/69500379

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install stringr

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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