In R, is there a way to draw the graph of a function? For example
h(x) = x^5 + x^8 + (cos(x))^3 + 0.6e^x
I have tried, but keep receiving syntax errors such as unexpected ^ in h(x)
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4`plot(x^5 + x^8 + (cos(x))^3 + 0.6*exp(x), type="l")`? Note that `0.6e^x` should be `0.6*exp(x)` – Jilber Urbina Nov 16 '13 at 20:20
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2Or maybe OP is looking for something like `plot(function(x) x^5 + x^8 + (cos(x))^3 + 0.6*exp(x), -10, 10, type="l")` – Matthew Plourde Nov 16 '13 at 20:22
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3or `curve(x^5 + x^8 + (cos(x))^3 + 0.6*exp(x))` – Ben Bolker Nov 16 '13 at 20:28
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You definitely want `curve` as @BenBolker suggests. – Thomas Nov 16 '13 at 20:40
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1well, `plot.function()` calls `curve()`, so my comment/answer and @Jilber's are almost-if-not-entirely identical. – Ben Bolker Nov 16 '13 at 20:44
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@BenBolker But, Jilber's requires defining `x` first, whereas yours does not, at least as I attempt to run it. – Thomas Nov 16 '13 at 21:46
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You're right. It's @MatthewPlourde's answer that is almost equivalent to mine. – Ben Bolker Nov 16 '13 at 22:03
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+1. I never knew this was possible in R, and had always used Jilber's approach. – Frank Nov 16 '13 at 23:38
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h <- function(x) x^5 + x^8 + cos(x)^3 + .6*exp(x)
plot(1:10, h(1:10))
plot(1:10, h(1:10), pch=19, cex=3, col=rainbow(10, alpha=.5, .5), type='o', lty=2, ylab='', xlab='', main='Plots for da winnnn!')
Hillary Sanders
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