# Examples for backend: winston

- Supported arguments: `args`, `axis`, `color`, `kwargs`, `label`, `legend`, `linestyle`, `linetype`, `marker`, `markersize`, `nbins`, `reg`, `size`, `title`, `width`, `windowtitle`, `xlabel`, `ylabel`, `yrightlabel`
- Supported values for axis: `:auto`, `:left`
- Supported values for linetype: `:none`, `:line`, `:sticks`, `:scatter`, `:hist`, `:bar`
- Supported values for linestyle: `:solid`, `:dash`, `:dot`, `:dashdot`
- Supported values for marker: `:none`, `:ellipse`, `:rect`, `:diamond`, `:utriangle`, `:dtriangle`, `:cross`, `:xcross`, `:star1`
- Is `subplot`/`subplot!` supported? No

### Initialize

```julia
using Plots
winston!()
```

### Lines

A simple line plot of the 3 columns.

```julia
plot(rand(100,3))
```

![](../img/winston/winston_example_1.png)

### Functions

Plot multiple functions.  You can also put the function first.

```julia
plot(0:0.01:4π,[sin,cos])
```

![](../img/winston/winston_example_2.png)

### 

You can also call it with plot(f, xmin, xmax).

```julia
plot([sin,cos],0,4π)
```

![](../img/winston/winston_example_3.png)

### 

Or make a parametric plot (i.e. plot: (fx(u), fy(u))) with plot(fx, fy, umin, umax).

```julia
plot(sin,(x->begin  # /home/tom/.julia/v0.4/Plots/docs/example_generation.jl, line 33:
            sin(2x)
        end),0,2π,legend=false)
```

![](../img/winston/winston_example_4.png)

### Global

Change the guides/background without a separate call.

```julia
plot(rand(10); title="TITLE",xlabel="XLABEL",ylabel="YLABEL",background_color=RGB(0.5,0.5,0.5))
```

![](../img/winston/winston_example_5.png)

### Two-axis

Use the `axis` or `axiss` arguments.

Note: Currently only supported with Qwt and PyPlot

```julia
plot(Vector[randn(100),randn(100) * 100]; axiss=[:left,:right],ylabel="LEFT",yrightlabel="RIGHT")
```

![](../img/winston/winston_example_6.png)

### Vectors w/ pluralized args

Plot multiple series with different numbers of points.  Mix arguments that apply to all series (singular... see `marker`) with arguments unique to each series (pluralized... see `colors`).

```julia
plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8,colors=[:red,:blue])
```

![](../img/winston/winston_example_7.png)

### Build plot in pieces

Start with a base plot...

```julia
plot(rand(100) / 3; reg=true,fillto=0)
```

![](../img/winston/winston_example_8.png)

### 

and add to it later.

```julia
scatter!(rand(100); markersize=6,color=:blue)
```

![](../img/winston/winston_example_9.png)

### Line types



```julia
types = intersect(supportedTypes(),[:line,:step,:stepinverted,:sticks,:scatter])
n = length(types)
x = Vector[sort(rand(20)) for i = 1:n]
y = rand(20,n)
plot(x,y; linetypes=types,labels=map(string,types))
```

![](../img/winston/winston_example_11.png)

### Line styles



```julia
styles = setdiff(supportedStyles(),[:auto])
plot(rand(20,length(styles)); linestyle=:auto,labels=map(string,styles))
```

![](../img/winston/winston_example_12.png)

### Marker types



```julia
markers = setdiff(supportedMarkers(),[:none,:auto])
scatter(0.5:9.5,[fill(i - 0.5,10) for i = length(markers):-1:1]; marker=:auto,labels=map(string,markers),markersize=10)
```

![](../img/winston/winston_example_13.png)

### Bar

x is the midpoint of the bar. (todo: allow passing of edges instead of midpoints)

```julia
bar(randn(1000))
```

![](../img/winston/winston_example_14.png)

### Histogram

note: fillto isn't supported on all backends

```julia
histogram(randn(1000); nbins=50,fillto=20)
```

![](../img/winston/winston_example_15.png)