Im trying to create a new column which contains true or false. Basically column A has a number in it, between 1 and 6, if its higher than 3 I want the new column 'match' to contain true, otherwise ...

OpenRefine http://openrefine.org/ allows URL generation using GREL as tokens. I want to connect to an API which only supports a POST method . Can I format the URL so it calls the REST API using POS...

I have been cleaning a table on Open Refine. I now have it like this: REF Handle Size Price 2002, 2003 t-shirt1 M, L 23 3001, 3002, 3003 t-shirt2 S, M, L 24 I need to split those multivalued cel...

I'd like to search and replace multiple values in a column with a single function with GREL (or anything other) in Google Refine. For example: 1. replace(value, "Buch", "bibo:Book") 2. replace(va...

I have a transposition that I'd like to apply to multiple columns. The Grel generated shows the columnName or Base name, but that means I have to edit the code for each column. Thought there was a ...

I am unable to replace null values in cells. I have created a facet to only display cells that have null values. I then went to edit cells > Transform function and tried to use the replace function...

I have a large data set, dedicated to biological journals, which was being composed for a long time by different people. So, the data are not in a single format. For example, in the column "AUTHOR"...

I know the question is asked already but somehow I can't find any convincing solution after googling for about an hour. I am using apache-jena to load RDF model from a url. And I am getting Incom...

I'm using openrefine to cleanup an excel data set. I have about 70 operations and I've been cutting and pasting on different data sets. I maintain a record id and export to a new excel sheet. Then ...

i was trying to import freebase rdf to google refine but getting an error....but now how to extract topic names with notable type from 18 gb rdf to csv etc....any gui tool ?