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New posts in plyr

What are some situations in which one would prefer melt from reshape over ddply from plyr? I'm trying to learn them and they seem similar

r plyr reshape

Splitting columns when using ddply

r plyr

For each level of factor aggregate values over all levels except the current one

r aggregate data.table plyr

Number equal rows in data.frame

r dataframe plyr

Avoiding for-loops when aggregating timeseries

r functional-programming plyr

Summarizing data in table by group for each variable in r

r dplyr aggregate plyr

Grouping and Counting instances?

r dplyr plyr

Unwrapping continuous data into a single row in R

r dataframe plyr

ddplyr summarize by year, include count of year

r plyr

Split row containing range into multiple rows by any number

r plyr

Sorting in R with dplyr: How to sort by category in one column based on sum of category in another column?

r dataframe dplyr plyr

How to join lists of dataframe that were split using plyr function

r plyr

ddply returning too many results

r plyr

How does one make summarise from plyr output wide rather than long

r each plyr

R multiply matrices: but with a special function

r plyr apply

How to get the name of a variable isolated from a data.frame using indexing?

r dataframe plyr

How to use ddply to get weighted-mean of class in dataframe?

r plyr reshape weighted-average summarization

mean from row values in a dataframe excluding min and max values in R

r dataframe plyr

subset inside a function by the variables specified in ddply

r subset plyr

Merging data frames of different row length in R [duplicate]

r plyr
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