Create object from environment, to use in loop

Asked Jul 08 '21 at 12:20

Active Jul 08 '21 at 12:20

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I would like to create an object from the objects listed in the environment, to use this object in a loop, however, I am not successful.

For example, let's say I have an object in the environment called data, so:

ls()[2]
[1] "date"

To create an object called data2008 from data in the environment, I'm trying to:

assign(sprintf('data%i', 2008),
        subset(ls()[2], `TEST`!=1015
               &`TEST`!=2011
               &`TEST`!=1023
               &`TEST`!=1031))

However, I get:

Error in subset.default(ls()[], 'TEST' != 1015 & 'TEST' != 2011 & : object 'TEST' not found

I'm using sprintf('data%i', 2008) in assign because I need to use this in a loop. How can I proceed? I thank the help of all you.

asked Jul 08 '21 at 12:20

Nuñes

I think you are looking for `get` - `get(ls()[2])` instead of just `ls()[2]` – Ronak Shah Jul 08 '21 at 12:22
It worked, thankful @Ronak Shah. Could you explain what `get` does? – Nuñes Jul 08 '21 at 12:33

Create object from environment, to use in loop

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