Hello,
I have a list of companies holding shares of another company. The companies in the different years all have different ID's and I want to standardize the lists, so all the firms have the some ID in all the years. For example, Macroware should be ID 5 in 1996, 2001, 2006 and 2011. I already know what the ID of each firm is in each of the unstandardised lists. I can't seem to figure out how to do it. I hope somebody can help me.
I added an example file.
Kind regards,
Bremster
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