How to restructure data with one observation by row into data with one observation by ID (and multip...

How to get one row per unique ID with multiple columns per values of particular column...

Using Dcast in R to transform dataframe...

Reshaping in R using data.table from multiple rows...

Reshaping data by appending rows from different groups to the same row...

Spreading a single variable/column in a dataset with many columns, aggregating the other variables...

How do I convert a dataset with 1 column per day to only 1 date column (days) with R...

Is there a function within dcast that allows me to include additional conditions?...

Making long data wide with nested categories...

Convert rows into columns taking the names from one variable...

R Long to wide with count and sum...

restructure large data frame with multiple data types...

how to calculate unique count using dcast in R...

summarizing a dataframe and adding column with mean ± SD...

How to use dcast() to convert a 5x2 data.table to a 1x5 data.tabe?...

Custom dcasting via data.table in R...

R - filter observations that remain the same over multiple years...

dcast() - adding a column that doesnt exist in R...

Manipulating large dataset with dcast...

Nth smallest value for every column in data.frame in R...

R: Getting incorrect result in added summarised column...

Combination of reshaping and aggregating a data.frame...

data.table: Create new character column based on indicator columns values and names...

data.table - split data.table into elements of a lists using ~ var|factor - cast / dcast...

r transform dataset from wide to long for column names with patterns...

Change the data structure from long to wide and visa versa...

How to make each row a new set of variables and rename them dynamically in r...

Pivot_table in pandas with a rowid sequence...

dcast for numeric and character columns in R - returning length by default...

Means multiple columns by multiple groups...