draw.bubble | R Documentation |

Bubble plots are plots of circles whose surfaces areas are proportional to values in `z`

.

```
draw.bubble(x, y, z, maxradius = 1, ...)
```

`x,y` |
vector with x and y-locations of the centre of the bubbles. |

`z` |
vector with positive values to correspond with the surface area of the bubbles. |

`maxradius` |
the radius of the largest bubble in units of the y-scale. |

`...` |
other arguments to be passed to |

Hans Gerritsen

```
data(landings)
data(coast)
xlim <- c(-12,-5)
ylim <- c(50,56)
agg <- aggregate(list(z=landings$LiveWeight),list(x=landings$Lon,y=landings$Lat),sum)
basemap(xlim, ylim, main = "Gadoid landings")
draw.shape(coast, col="cornsilk")
draw.bubble(agg$x, agg$y, agg$z, maxradius=0.5, pch=21, bg="#00FF0050")
legend.z <- round(max(agg$z)/1000,0)
legend.bubble("topright", z=legend.z, maxradius=0.5, inset=0.02, bg="lightblue", txt.cex=0.8,
pch=21, pt.bg="#00FF0050")
```

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