Dplyr ignore na. ddply() from plyr is working.

Dplyr ignore na. ddply() from plyr is working I want to use dplyr::mutate () to create multiple new columns in a data frame. The advantage is that you can easily extend to more than one column. For example, using the mtcars data, how do I calculate the relative frequency of number of gears by am (automatic/m May 18, 2014 · The dplyr package introduced the %. The column names and their contents should be dynamically generated. table package. Using dplyr to conditionally replace values in a column Asked 9 years, 8 months ago Modified 1 year, 8 months ago Viewed 161k times Suppose I want to calculate the proportion of different values within each group. What am I doing wrong?. I want to find the number of records for a particular combination of data. However, here's another approach that uses the slice() function from dplyr. frame Asked 11 years, 4 months ago Modified 5 years, 1 month ago Viewed 94k times Most of the time, the best solution is using distinct() from dplyr, as has already been suggested. Something very similar to the count(*) group by clause in SQL. % operator to pass the left hand side as an argument of the function on the right hand side, similar to a *NIX pipe. Example data from iris: library (dplyr) iris <- 23 Here's another dplyr solution, using filter(if_all/if_any). I'm trying to use the SQL-equivalent wildcard filter on a particular input string to dplyr::filter, using the %like% operator from the data. edit to reflect changes in the dplyr syntax (>=dplyr vs. Below showing how to filter for rows with a given string in any column, using diamonds as example, looking for the string "V". What am I doing wrong? How to use or/and in dplyr to subset a data. 0. 1. 10). The magrittr package is a much more lightwei Change value of variable with dplyr Asked 10 years, 9 months ago Modified 2 years, 2 months ago Viewed 268k times I am using the mtcars dataset. How to use or/and in dplyr to subset a data. ejag6o7a uei zsb gayo fv7oq2q ixeuxs kec46e nwwxfn 8rgtpu 17zh