Incorrect returns using tapply in R...

R - Clustering (K-means) within groups...

create new column (with outcome min or NA) from multiple selected columns...

Class of output object differs as input data differs...

Problems creating a key value store in R...

sapply function returning null values...

Apply multiple functions within a single function to a DataFrame...

How to record presence/absence of splitted elements of large strings in individual dataframe columns...

Why is it that wrapping as.Date() in sapply return a numerical data type, but whereas lapply returns...

How to calculate same value counts for each column (all columns values are numeric) is less than 40%...

Print the 3rd number and all the elements divisible by 2...

Anti group by/R apply in Pyspark...

Select categorical variables where number of levels is equal to 1...

Check which interval values lies within for each day, and create new matrix containing information o...

Write a vector of year-month with a loop or function in R...

apply a function to multiple list with common elements in r...

Should I use sapply to run simulations that don't require an argument?...

Why cant I calculate the mean?...

Applying multiple functions to one column...

R: adding logical to sapply...

Lag Dataframe in R...

Replace NULL is list with NA...

Faster way of applying `all` function?...

Program that inputs observation into a vector based on intersection of three observations...

Using a function to repeat function over a collection of filenames...

Applying lm() using sapply or lapply...

Using sapply to sample with pre-defined probability...

R multiply unequal dataframes based on specific column values...

R query - Is it possible to use "sapply" and the "weighted.mean" function togeth...

lapply pdf output overwrites pdf instead of creating new ones...