I have 16 files and would like to check the information of their first two lines, what I did:
> ls(pattern="P_") [1] "P_3_utr_source_data" "P_5_utr_source_data" [3] "P_exon_per_gene_cds_source_data" "P_exon_per_gene_source_data" [5] "P_exon_source_data" "P_first_exon_oncds_source_data" [7] "P_first_intron_oncds_source_data" "P_first_intron_ongene_source_data" [9] "P_firt_exon_ongene_source_data" "P_gene_cds_source_data" [11] "P_gene_source_data" "P_intron_source_data" [13] "P_last_exon_oncds_source_data" "P_last_exon_ongene_source_data" [15] "P_last_intron_oncds_source_data" "P_last_intron_ongene_source_data" >for(i in ls(pattern="P_")){head(i, 2)} It obviously does not work since nothing came out What I would like to see for the output is : > head(P_3_utr_source_data,2) V1 1 1 2 1 > head(P_5_utr_source_data,2) V1 1 1 2 1 > . . . Could anybody help me with this? Thank you very much for your time:) [[alternative HTML version deleted]]
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