What to know the difference between [] and $ in column selection in R!!!!
e.g.
Excel$Column_name
Excel[1]
How both commend work? I some cases one of the commend doesn't execute or do what we want. Just want know the difference b/w these cases!!
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[$] is `[[]]` and returns a vector, `[]` returns a `list` – Waldi Apr 24 '21 at 05:03
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1https://stackoverflow.com/q/1169456/2994949 – rawr Apr 24 '21 at 05:04