Grammar of Graphics Wilkinson Leland
Grammar of Graphics Wilkinson Leland Preface to First Edition Before writing the graphics for SYSTAT in the 1980's, I began by teaching a seminar in statistical graphics and collecting as many…
Specifikacia Grammar of Graphics Wilkinson Leland
Grammar of Graphics Wilkinson Leland
Preface to First Edition Before writing the graphics for SYSTAT in the 1980's, I began by teaching a seminar in statistical graphics and collecting as many different quantitative graphics as I could find. The structure of the program was a collection of procedures named after the basic graph types they p- duced. I was determined to produce a package that could draw every statistical graphic I had ever seen.
In the early 1990's, I redesigned the SYSTAT graphics package using - ject-based technology. The graphics code was roughly one and a half megabytes in size. I intended to produce a more comprehensive and - namic package.
I accomplished this by embedding graphical elements in a tree structure. Rendering graphics was done by walking the tree and editing worked by adding and deleting nodes. The code size fell to under a megabyte.
In the late 1990's, I collaborated with Dan Rope at the