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CO Colorado 7: Sign up using Facebook. If the lookup table is more than two columns, it’s an update join, which doesn’t exist in dplyr for now.
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An empty string is data in R, like an integer value of 0. Does the coalesce approach only work with NA and not other kinds of missingness like empty strings?
AK Alaska 3: Picking up Alistaire’s and Nettle’s suggestions and transforming into a working solution. Sign up or log in Sign up using Google.
For now, you can build it manually. Post as 604-55 guest Name. The basic functionality is built defined in coalescethough, which can be applied programmatically if you don’t want to specify lots of column names. There’s currently no one-shot for trying to coalesce more than one column which can be done by using a lookup table approach within ifelse is. Sign up using Email and Password. Tidyverse solution answer much preferred.
Nettle 6 Similar questions do not seem to have tidy solutions.
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AL Alabama 2: You could just create a full look-up table and do a merge left join? This is such a common operation! CT Connecticut 8: If you’ve got a lot of columns, you can coalesce programmatically, or even put it in a function. AR Arkansas 5: