CODEWITHSUNDEEP
rdataframe
CodeGeek123
CodeGeek123

Reputation: 4501

R Programming Converting data columns to Rows

I have a dataframe which had the following structure: 

Date            Year          quantity
19-JUN-15   2022            958
19-JUN-15   2021            894
18-JUN-15   2020            80
18-JUN-15   2019            96

and so on.

I want to transform this to look like this : 

    Date           2022       2021     2020     2019                     
19-JUN-15          958        894
18-JUN-15                               80       96

and so on. Basically I want to make column 1 giving the dates and the rest of the columns are the individual years and the quantity matched according to the coordinates. How do I achieve this?

Upvotes: 0

Views: 62

Answers (1)

akrun
akrun

Reputation: 887901

You can try

library(reshape2)
dcast(df1, Date~Year, value.var='quantity')

Or

library(tidyr)
spread(df1, Year, quantity)

Or

 xtabs(quantity~Date+Year, df1)

Upvotes: 5

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