Error in pdb$atom : $ operator is invalid for atomic vectors

[abbas khan]

select residues in chain

inds <- atom.select("pdb2.1", 301:305)

While performing Protein Dynamic Correlation Network Construction and Community Analysis when I enter the above command it shows the following error. Could any help me to solve this issue?

inds <- atom.select("pdb2.1", 301:305)

Build selection from input string Error in pdb$atom : $ operator is invalid for atomic vectors

[Xinqiu Yao]

Are the numbers residue number? If so, use atom.select("pdb2.1", resno=301:305).

[Xinqiu Yao]

No response from the user.