Displaying 2 results from an estimated 2 matches for "surpr".
Did you mean:
suppr
2008 Jul 26
1
the C function drawing a rectangle: heatmap() -> image() -> do_image() -> GRect() -> GERect() -> rect() -> do_rect() -> GRect() ??
...to do similar things: search for the final C function that corresponding to the drawing of a rectangle?
As listed in the subject, I started from heatmap() in R and after several steps reached the GRect() in C. However, then it refers to rect() which further seems to refer to do_rect(), and then, surpringly, do_rect refers to GRect()!!! A dependency circle! How can it work if no functions soly taking the job for drawing a rectangle?
I know there must be somewhere wrong in my above function "chain", and can you help me to find it out? Many thanks!
--------------
Best wishes,
Joh...
2005 Apr 06
0
Polynomiographic function in R :-)
...ticism or advice is welcome :-).
Yesterday, I went to a conference by Bahman Kalantari (Rutgers
University) about Polynomiography (the Fine Art and Science of
Visualizing Polynomials). Since I'm starting my R learning, I decided
to try using it for computing some (any!) polynomiograph. I was
surprised about how easy and quick it was to get some results. Then I
thought it was interesting to extend the drawing to any function, and
not necessarily polynomials, yielding the function below:
polygraph <- function(expression, xrange=c(-1, 1), yrange=c(-1, 1),
points=200,...