What is used to convert wide data to long data in R?
The tidyr package can also be used to reshape data. It uses the gather function to convert data from wide to long format and uses the spread function to convert it from long to wide format.
What does the reshape function do in R?
This function reshapes a data frame between ‘wide’ format with repeated measurements in separate columns of the same record and ‘long’ format with the repeated measurements in separate records.
What is reshape function?
The reshape function returns a new array with n rows and m columns (n*m must equal the number of elements in the original array). The new array has the same elements as the original.
How to reshape data from wide to long in R?
Closed 7 years ago. I am trying to reshape Data from wide to long in R. I have the following Data-Matrix: in the rows i have the different companies, and in the columns in have different variables from different years. (earnings_2012, earnings_2011, earnings_2010,…,tot_assets_2012,tot_assets_2011, and so on.
Are there any limitations to reshape from wide to long?
One limitation is that it won’t handle “unbalanced” datasets (for example, if you didn’t have “assets_2010” as part of your data, this wouldn’t work). Quite popular for its syntax. Needs a little bit of processing before it can work since the column names need to be split in order for us to get this “double-wide” type of data.
How to reshape a frame to long format?
> long Code Country year value 1: AFG Afghanistan 1950 20,249 2: ALB Albania 1950 8,097 3: AFG Afghanistan 1951 21,352 4: ALB Albania 1951 8,986 5: AFG Afghanistan 1952 22,532 6: ALB Albania 1952 10,058 7: AFG Afghanistan 1953 23,557 8: ALB Albania 1953 11,123 9: AFG Afghanistan 1954 24,555 10: ALB Albania 1954 12,246
How to reshape a data frame in tidyr?
The tidyr package contains the pivot_longer function, which can be used to reshape a data frame as shown below: Note that the pivot_longer function returns a tibble instead of a data frame. In case you prefer to work with data frames you have to convert this tibble back to the data.frame class. The tidyr package also contains the gather function.