# Cant set ymin, ymax with gadfly, (plotting simple functions)
**URL:** https://discourse.julialang.org/t/cant-set-ymin-ymax-with-gadfly-plotting-simple-functions/29259
**Category:** New to Julia
**Created:** [September 28, 2019, 3:34am UTC](https://discourse.julialang.org/t/cant-set-ymin-ymax-with-gadfly-plotting-simple-functions/29259 "2019-09-28T03:34:25Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@dankworks](https://discourse.julialang.org/u/dankworks)
#### Post date: [September 28, 2019, 3:34am UTC](https://discourse.julialang.org/t/cant-set-ymin-ymax-with-gadfly-plotting-simple-functions/29259/1 "2019-09-28T03:34:25Z")
Hi,
I’m trying to plot a few simple functions with Gadfly. I’m having trouble setting the ymin and ymax. I’m trying to follow the documentation example:
```julia
plot(f::Function, lower, upper, elements...; mapping...)
plot(f::Function, xmin, xmax, ymin, ymax, elements...; mapping...)
```
It plots fine when I’m using this format:
```julia
plot([A, B, C, D, E], -10, 10)
```
but that creates really high y values so my functions are squashed and aren’t very readable. I would like to limit the y scale too.
If I use this though:
```julia
plot([A, B, C, D, E], -10, 10, -10, 10)
```
I get this error:
````julia
LoadError: MethodError: no method matching plot(::Array{Function,1}, ::Int64, ::Int64, ::Int64, ::Int64)
Closest candidates are:
plot(!Matched::Function, ::Number, ::Number, ::Number, ::Number, !Matched::Union{Function, Gadfly.Element, Theme, Type}...; mapping...) ```
The whole block of code:
using Gadfly
A(x) = (1 - x)
B(x) = (1 / x)
C(x) = ((x -1) / x)
D(x) = (1 / (1 - x))
E(x) = (x / (x - 1))
p = plot([A, B, C, D, E], -10, 10, -10, 10)
draw(SVG("compositions.svg", 6inch, 6inch), p)
````
---
### Author:  [@Mattriks](https://discourse.julialang.org/u/Mattriks)
#### Post date: [September 28, 2019, 4:27am UTC](https://discourse.julialang.org/t/cant-set-ymin-ymax-with-gadfly-plotting-simple-functions/29259/2 "2019-09-28T04:27:38Z")
Welcome to the Julia Community!
As hinted in the [p2 example](http://gadflyjl.org/stable/man/plotting/#Functions-and-Expressions-1), the syntax
```julia
plot(f::Function, xmin, xmax, ymin, ymax, elements...; mapping...)
```
is for functions with 2 variables e.g. `(x,y)->sin(x)+cos(y)`. For one variable functions, use `Coord.cartesian`:
```julia
plot([A,B,C,D,E], -10, 10, Coord.cartesian(ymin=-10, ymax=10))
```
---
### Author:  [@dankworks](https://discourse.julialang.org/u/dankworks)
#### Post date: [September 28, 2019, 4:37am UTC](https://discourse.julialang.org/t/cant-set-ymin-ymax-with-gadfly-plotting-simple-functions/29259/3 "2019-09-28T04:37:20Z")
Thank you so much! I’m brand new to Julia, and really only have a limited python background. This is actually my first night playing with it, but I’m excited to learn. Thanks again!
spencer