Answer by Christoph_J for Merging tables that are sorted differently with R
Here is a data.table way of doing this, in case the data is big and speed is an issue. For more information, refer to the help page of ?data.table:When i is a data.table, x (that is the outer...
View ArticleAnswer by Tal Galili for Merging tables that are sorted differently with R
I just implemented a function that solves this issue (of merging two data.frame objects while keeping the order to be by one of the two objects), you can see the code and examples for its use...
View ArticleAnswer by Chase for Merging tables that are sorted differently with R
So the id column is in both tables? You can merge them together: merge(table1, table2, sort = FALSE). There are lots of options to explore for merge that let you emulate different types of joins,...
View ArticleMerging tables that are sorted differently with R
I have 2 big tables. One with identifiers (unsorted), another with a list of identifiers (containing all which are in the first table) plus the associated values for one variable.I want to add a column...
View Article
