# [R] Rename variables starting with digits

Jeff Newmiller jdnewm|| @end|ng |rom dcn@d@v|@@c@@u@
Wed Oct 6 21:15:10 CEST 2021

```>Also, I checked my options and I have my email set to plain text...

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On October 6, 2021 10:30:49 AM PDT, Anne Zach <anne.zach.zach using gmail.com> wrote:
>Hello,
>
>Thank you for your help, I really appreciate it, I was able to solve the
>problem!
>
>Here is a part of my dataframe (just in case...):
>
>
>structure(list(ID = c(1, 2, 3, 4, 5, 6), DOB = c("9/53/1959",
>
>"4/8/1953", "2/21/1961", "10/11/1948", "9/4/1962", "8/22/1953"
>
>), startpoint = c(2.33, 2.44, 1.57, 3.1, 2.78, 1.89), endpoint = c(3.5,
>
>4, 2.4, 4.02, 3.98, 2.1), `1_t1_start` = c(1, 1, 1, 1, 1, 1),
>
>    `1_T1` = c(4, 7, 2, 3, 3, 5), `2_T2_start` = c(2.67, 3.3,
>
>    2.45, 2.2, 1.9, 2.6), `2_T2` = c(5, 5, 6, 4, 5, 3), `3_T3_start` =
>c(4.76,
>
>    5.1, 3.87, 3.61, 2.83, 3.7), `3_T3` = c(7, 3, 4, 2, 5, 3),
>
>    `4_T4_start` = c(6.09, 6.99, 5.21, 5.19, 5.02, 6.34), `4_T4` = c(4,
>
>    5, 5, 4, 3, 6)), row.names = c(NA, -6L), class = c("tbl_df",
>"tbl", "data.frame"))
>
>Also, I checked my options and I have my email set to plain text...
>
>Best,
>Anne
>
>
>
>On Tue, Oct 5, 2021 at 3:12 PM Jim Lemon <drjimlemon using gmail.com> wrote:
>
>> Hi Anne,
>> As mentioned above, you may have to do nothing. Here is an example
>> that might clarify that:
>>
>> 1 10 20 30
>> 2 11 22 33",
>> azdat
>>  subject X1 X2 X3
>> 1       1 10 20 30
>> 2       2 11 22 33
>>
>> As you can see, R simply prepends an "X" to numeric names. If you
>> really want a "v":
>>
>> names(azdat)<-gsub("X","v",names(azdat))
>>
>> Jim
>> Always happy to help an ANZAC (bad joke)
>>
>> On Wed, Oct 6, 2021 at 3:15 AM Anne Zach <anne.zach.zach using gmail.com> wrote:
>> >
>> > Dear R users,
>> >
>> > I have a dataframe that contains several variables, among which 105
>> > correspond to scores on certain trials. Unfortunately, when I imported
>> this
>> > dataframe into R, I realised that the variable names corresponding to
>> each
>> > trial begin with digits, which violates R naming conventions.
>> >
>> > I am trying to relabel these variables by adding a 'v' as a prefix to
>> each
>> > of them, I'd like to use tidyverse, but I am struggling with this process
>> > of renaming. When I run this chunk of code, no error occurs but my
>> > variables are not renamed. I'm fairly new to R and I can't understand
>> what
>> > I'm doing wrong.
>> >
>> > ```{r}
>> >
>> > behavioral_df <- behavioral_df %>% rename_with(.fn =  ~paste0("v"),
>> > starts_with('^\\d'))
>> >
>> > ```
>> >
>> > I appreciate if you can help.
>> >
>> > Best,
>> > Anne
>> >
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>> >
>> > ______________________________________________
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>> http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>>
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