How to type tilde (~) in R?

Question

I need to write often down the tilde symbol in R, but I did not find anything useful browsing on the internet. I am using an Italian keyboard on a Linux OS.

Does some of you have any ideas?

Any hint or advises would be appreciated.

ALT + 5 in Italian Keyboards for MAC OS, but I am not sure (Italian too but I have un UK keyboard), and ALT + 126 for Windows user. — SabDeM
– SabDeM, Commented Jun 23, 2015 at 23:33
@Pascal, it's an Italian keyboard. There isn't on the keyboard, so I really don't know how can I do that. Some advice? — QuantumGorilla
– QuantumGorilla, Commented Jun 23, 2015 at 23:33
@Quantopic - AltGr + ^ supposedly works on Linux according to my linked question. — thelatemail
– thelatemail, Commented Jun 23, 2015 at 23:38

Community · Accepted Answer · 2017-03-20 10:18:17Z

7

According to this link over at Superuser:

https://superuser.com/questions/667622/italian-keyboard-entering-the-tilde-and-backtick-characters-without-cha

AltGr + ^ will give you a tilde ~~~~ on a Linux system with an Italian keyboard, which is what you said you were using in the comments.

edited Mar 20, 2017 at 10:18

CommunityBot

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answered Jun 23, 2015 at 23:47

thelatemail

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josliber · Accepted Answer · 2015-06-23 23:35:40Z

6

(tilde <- rawToChar(as.raw(126)))
# [1] "~"

You could use this variable when you need tilde in text.

summary(lm(paste0("Sepal.Length", tilde, "Sepal.Width"), data=iris))
# Call:
# lm(formula = paste0("Sepal.Length", tilde, "Sepal.Width"), data = iris)
# 
# Residuals:
#     Min      1Q  Median      3Q     Max 
# -1.5561 -0.6333 -0.1120  0.5579  2.2226 
# 
# Coefficients:
#            Estimate Std. Error t value Pr(>|t|)    
# (Intercept)   6.5262     0.4789   13.63   <2e-16 ***
# Sepal.Width  -0.2234     0.1551   -1.44    0.152    
# ---
# Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
# 
# Residual standard error: 0.8251 on 148 degrees of freedom
# Multiple R-squared:  0.01382, Adjusted R-squared:  0.007159 
# F-statistic: 2.074 on 1 and 148 DF,  p-value: 0.1519

Alternately, you could just type tilde and copy and paste the character.

answered Jun 23, 2015 at 23:35

josliber

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1 Comment

QuantumGorilla Over a year ago

Thank you for the answer, it is really genial, but I would like some more intituitive. Anyway, firstly +1 and, secondly, @latemail suggested a solution by using the keyboard directly.

Hafiz · Accepted Answer · 2021-09-24 19:59:37Z

1

If you are using Italian keyboard layout & also Linux OS then try F5.

answered Sep 24, 2021 at 19:59

Hafiz

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