I have the following data frame:
gene    gene_name   source  chromosome  details
1       a           A           2       01; xyz
1       a           A           2       02; ijk
2       b           B           3       03; efg
2       b           C           3       03; efg
3       c           D           4       04; lmn
3       c           D           4       05; opq
3       c           D           4       06; rst
4       NA          10          6       NA
4       NA          11          6       NA
I want to get the following output:
gene    gene_name   source  chromosome  details
1       a           A       2           01; xyz | 02;ijk
2       b           B, C    3           03; efg
3       c           D       4           04; lmn | 05; opq | 06; rst
4       NA          10, 11  6           NA | NA
I have tried to use aggregate() and group_by() in different ways, but did not get it.
Please guide.
Thanks.