Plot sine curve in R

Question

How can I plot a generic sin curve in R? Based on the answer of this post, I tried:

x <- seq(0,pi,length.out=100)
y <- sin(x)
plot(x,y,type="l")

Actually what I really would is this graph, produced by gnuplot:

plot sin(x) linestyle 1

Furthermore, I would like to know why gnuplot produces a graph even if I do not assign any value to the variable x. Does it have a preassigned value or something else?

Did my answer actually answer your question? About the gnuplot question, so it is pretty normal to have standard settings. For me the graph looks like it is going until infinity but the edges of the canvas are at +-10... — drmariod, Nov 11 '16 at 06:58

score 13 · Accepted Answer · answered Nov 10 '16 at 15:32

13

pi is just one half of a sine curve... add more pi so you will get more curves...

x <- seq(0,8*pi,length.out=100)
y <- sin(x)
plot(x,y,type="l")

answered Nov 10 '16 at 15:32

drmariod

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If y is a function of x, you can use `curve` if you like: `curve(sin, to = 2*pi)` – alistaire Nov 10 '16 at 15:40
Thank you everybody for your suggestions! – Worice Nov 11 '16 at 08:06

score 0 · Answer 2 · edited May 07 '21 at 15:23

0

plot(sin, 0, 2*pi)

Change the multiplier to change the "frequency."

edited May 07 '21 at 15:23

Anoushiravan R

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answered May 07 '21 at 14:18

Andy

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Plot sine curve in R

2 Answers2