This question already has answers here: Compute row-wise counts in subsets of columns in dplyr (2 answers) Closed 15 days ago. I have a large dataset and I need to count the total occurrences of “no” across multiple columns. The dataset looks like this: id = c(1,2,3,4,5,6,7,8) trat = c(“a”,”b”,”a”,”b”,”a”,”b”,”a”,”b”) var1 = c(“no”,”no”,”no”,”no”,”yes”,NA,NA,”no”) var2 = […]

I’m using R to calculate simple ratios in columns and save those values in another table. The columns seen in the str included are every day in January and every hour of every day in January. For the purposes of this project, I have to calculate all of the hours of the month. I’m getting an appropriate table, but all the values are NA, so the logic or my attempt is failing somewhere and I’ve read all I can read. I’ve hit my limit on trying to find the issue and I need help.

I have a dataframe like this

I’m working with a list in R and I’ve noticed an unexpected difference in output when using single and double bracket indexing in the case_when() function from the dplyr package. Here’s the sample list I’m working with:

By using tidyverse, I want to calculate standard deviation of alt_freq column grouping by rsid in a data frame. In each group, I want to consider only those rows which have at least 100 samples.

I am attempting to modify my code below to a single pipeline using dplyr. I am calculating a weighted mean across two columns per year where each year has a different weighting. How can this been performed without explicitly splitting the dataset and then combining the results? Thanks

I’m trying to create new dataframes with the top three values for each column across a dataframe.

Context:
I have a dataframe of individual people grouped by household, which includes relationship parameters for each individual describing their relationship to every other individual in the household.

the below example is to obtain the min value amoing 3 columns, we can use the pmin(V1, V2, V3)
if we have lots of column, how to get the minimu value among all numeric variables especially using the tidyverse

I have the following data frame,