dplyr | dplyr : A grammar of data manipulation | Data Visualization library

 by   tidyverse R Version: v1.1.2 License: Non-SPDX

kandi X-RAY | dplyr Summary

kandi X-RAY | dplyr Summary

dplyr is a R library typically used in Analytics, Data Visualization applications. dplyr has no bugs, it has no vulnerabilities and it has medium support. However dplyr has a Non-SPDX License. You can download it from GitHub.

dplyr is a grammar of data manipulation, providing a consistent set of verbs that help you solve the most common data manipulation challenges:. These all combine naturally with group_by() which allows you to perform any operation “by group”. You can learn more about them in vignette("dplyr"). As well as these single-table verbs, dplyr also provides a variety of two-table verbs, which you can learn about in vignette("two-table"). If you are new to dplyr, the best place to start is the data transformation chapter in R for data science.

            kandi-support Support

              dplyr has a medium active ecosystem.
              It has 4460 star(s) with 1506 fork(s). There are 246 watchers for this library.
              There were 2 major release(s) in the last 12 months.
              There are 37 open issues and 4794 have been closed. On average issues are closed in 4 days. There are 7 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of dplyr is v1.1.2

            kandi-Quality Quality

              dplyr has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              dplyr 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

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

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            dplyr Key Features

            No Key Features are available at this moment for dplyr.

            dplyr Examples and Code Snippets

            No Code Snippets are available at this moment for dplyr.

            Community Discussions


            How to summarize the top n values across multiple columns row wise?
            Asked 2022-Mar-19 at 23:30

            In my dataframe, I have multiple columns with student grades. I would like to sum the "Quiz" columns (e.g., Quiz1, Quiz2). However, I only want to sum the top 2 values, and ignore the others. I want to create a new column with the total (i.e., the sum of the top 2 values). There is also the issue of having grades that tie for the top 2 grades in a given row. For example, Aaron has a high score of 42, but then there are two scores that tie for the second highest (i.e., 36).




            Answered 2021-Dec-12 at 23:25


            Fast method of getting all the descendants of a parent
            Asked 2022-Feb-25 at 08:17

            With the parent-child relationships data frame as below:



            Answered 2022-Feb-25 at 08:17

            We can use ego like below

            Source https://stackoverflow.com/questions/71022350


            How to left rows with the same values in columns using dplyr package in R?
            Asked 2022-Feb-12 at 08:22

            I wonder how can we filter rows with the same values in columns using dplyr package? I tried doing something in opposite to what was asked and proposed in this question but nothing worked.

            I used the approach with apply function but received the following error:



            Answered 2022-Jan-14 at 09:42

            Not quite native tidyverse, but does what you desire?

            Source https://stackoverflow.com/questions/70707472


            How to pass a dynamic column name in a pipe in custom function in R
            Asked 2022-Feb-07 at 08:03

            I've created a dynamic column name w/ dplyr::mutate() based on this thread Use dynamic variable names in `dplyr` and now I want to sort the new column.... but I'm not correctly passing the column name



            Answered 2022-Feb-07 at 07:47

            Unfortunately I don't know if any way to use that nice glue syntax with anything that's not on the left side of a :=. That's there the magic happens. You can get something to work if you take care of the explicity conversion to sumbol your self and do the string building manually. It's not pretty, but this works

            Source https://stackoverflow.com/questions/71014763


            How to automate legends for a new geom in ggplot2?
            Asked 2022-Jan-30 at 18:08

            I've built this new ggplot2 geom layer I'm calling geom_triangles (see https://github.com/ctesta01/ggtriangles/) that plots isosceles triangles given aesthetics including x, y, z where z is the height of the triangle and the base of the isosceles triangle has midpoint (x,y) on the graph.

            What I want is for the geom_triangles() layer to automatically provide legend components for the height and width of the triangles, but I am not sure how to do that.

            I understand based on this reference that I may need to adjust the draw_key argument in the ggproto StatTriangles object, but I'm not sure how I would do that and can't seem to find examples online of how to do it. I've been looking at the source code in ggplot2 for the draw_key functions, but I'm not sure how I would introduce multiple legend components (one for each of height and width) in a single draw_key argument in the StatTriangles ggproto.



            Answered 2022-Jan-30 at 18:08

            I think you might be slightly overcomplicating things. Ideally, you'd just want a single key drawing method for the whole layer. However, because you're using a Stat to do the majority of calculations, this becomes hairy to implement. In my answer, I'm avoiding this.

            Let's say I'd want to use a geom-only implementation of such a layer. I can make the following (simplified) class/constructor pair. Below, I haven't bothered width_scale or height_scale parameters, just for simplicity.


            Source https://stackoverflow.com/questions/70916440


            R function to extract top n scores from a dataframe and find their average using `apply` or dplyr `rowwise`
            Asked 2022-Jan-18 at 18:16

            The dataframe looks like this



            Answered 2022-Jan-16 at 18:49

            With apply, use MARGIN = 1, to loop over the rows on the numeric columns, sort, get the head/tail depending on decreasing = TRUE/FALSE and return with the mean in base R

            Source https://stackoverflow.com/questions/70733133


            Is it possible to combine a ggplot legend and table
            Asked 2022-Jan-07 at 03:57

            I was wondering if anyone knows a way to combine a table and ggplot legend so that the legend appears as a column in the table as shown in the image. Sorry if this has been asked before but I haven't been able to find a way to do this.

            Edit: attached is code to produce the output below (minus the legend/table combination, which I am trying to produce, as I stitched that together in Powerpoint)



            Answered 2021-Dec-31 at 13:24

            This is an interesting problem. The short answer: Yes, it's possible. But I don't see a way around hard coding the position of table and legend, which is ugly.

            The suggestion below requires hard coding in three places. I am using {ggpubr} for the table, and {cowplot} for the stitching.

            Another problem arises from the legend key spacing for vertical legends. This is still a rather unresolved issue for other keys than polygons, to my knowledge. The associated GitHub issue is closed The legend spacing is not a problem any more. Ask teunbrand, and he knows the answer.

            Some other relevant comments in the code.

            Source https://stackoverflow.com/questions/70511777


            Relocate rows with tidyverse
            Asked 2021-Dec-31 at 06:46

            Is it possible to relocate rows in tidyverse framework like it is possible for columns with dplyr relocate?

            In this example I would like to relocate row 1 to position 5 (end of dataframe)

            My dataframe:



            Answered 2021-Aug-12 at 15:46

            Maybe this is not so elegant but here is a way:

            Source https://stackoverflow.com/questions/68760442


            `dplyr::select` without reordering columns
            Asked 2021-Dec-27 at 14:16

            I am looking for an easy, concise way to use dplyr::select without rearranging columns.

            Consider this dataset:



            Answered 2021-Dec-22 at 21:28

            We could use match with sort

            Source https://stackoverflow.com/questions/70454916


            Coalesce pairs of variables within a dataframe based on a regular expression
            Asked 2021-Dec-26 at 15:31

            I want to use dplyr::coalesce to find the first non-missing value between pairs of variables in a dataframe containing multiple pairs of variable. The goal is to create a new dataframe with now only one copy for each pair of variable (a coalesce variable without NA values).

            Here is an example:



            Answered 2021-Dec-22 at 04:40

            You could use transmute, e.g.

            Source https://stackoverflow.com/questions/70442283

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


            No vulnerabilities reported

            Install dplyr

            You can download it from GitHub.


            If you encounter a clear bug, please file an issue with a minimal reproducible example on GitHub. For questions and other discussion, please use community.rstudio.com or the manipulatr mailing list. Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.
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