Removing everything after the period in R

Asked May 23 '21 at 08:47

Active May 23 '21 at 08:47

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I have a data frame that has gene ID's listed as such:

df <- c(ENSG000012345.12, ENSG00004684.45, ENSG0000046858.45, ENSG000005768.3, ENSG00000675.5)

I am trying to write a command that will remove everything after the period. So, that I end up with:

df <- c(ENSG000012345, ENSG00004684, ENSG0000046858, ENSG000005768, ENSG00000675)

My actual data frame has around 20,000 gene names, this is just a small snippet. If someone could help me with this that would be great!

asked May 23 '21 at 08:47

Sarah

`sub("\\..*","",df)` – Ronak Shah May 23 '21 at 08:48
Is there a way for me to do this and get the results as one long column as opposed to a vector? I tried doing ````as.data.frame```` but that does not work. – Sarah May 23 '21 at 08:50

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