Top "Dplyr" questions

Remove duplicated rows using dplyr

I have a data.frame like this - set.seed(123) df = data.frame(x=sample(0:1,10,replace=T),y=sample(0:1,10,replace=…

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Summarizing count and conditional aggregate functions on the same factor

Quick and short of it is I'm having problems summarizing count and aggregate functions with conditions on the same factor. …

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Select unique values with 'select' function in 'dplyr' library

Is it possible to select all unique values from a column of a data.frame using select function in dplyr …

r select unique dplyr

dplyr change many data types

I have a data.frame: dat <- data.frame(fac1 = c(1, 2), fac2 = c(4, 5), fac3 = c(7, 8), dbl1 = c('1', …

r dataframe dplyr

Select first and last row from grouped data

Question Using dplyr, how do I select the top and bottom observations/rows of grouped data in one statement? Data &…

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Changing factor levels with dplyr mutate

This is probably simple and I feel stupid for asking. I want to change the levels of a factor in …

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Select columns based on string match - dplyr::select

I have a data frame ("data") with lots and lots of columns. Some of the columns contain a certain string ("…

r regex dplyr

Gather multiple sets of columns

I have data from an online survey where respondents go through a loop of questions 1-3 times. The survey software (…

r reshape dplyr qualtrics tidyr

Group by multiple columns in dplyr, using string vector input

I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple …

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Display / print all rows of a tibble (tbl_df)

tibble (previously tbl_df) is a version of a data frame created by the dplyr data frame manipulation package in …

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