[程序分享] 用SAS画蝴蝶 [推广有奖]

141楼

kyolee2006 发表于 2012-11-21 15:57:40

Good

142楼

庐陵人 发表于 2012-11-21 16:01:02

143楼

缘来有你201 发表于 2012-11-21 16:08:53

？？？？

144楼

rain958 发表于 2012-11-21 16:10:08

太牛掰了~

145楼

Rad1c 发表于 2012-11-21 16:20:02

看看,本地也跑一下

146楼

leyuan474335 发表于 2012-11-21 16:22:07

牛人还真是多

147楼

winddr 发表于 2012-11-21 16:23:03

这个可以看看，谢谢楼主

148楼

wsyxh 发表于 2012-11-21 16:24:36

俺也改进一下，加了些色彩，是不是变漂亮了！
改进也是学习和进步的过程。

彩蝶.JPG

DATA Butterfly;
DO t=-400 TO 4 BY 0.01;
a = cos(t);
b = cos(4*t);
If t>-16 then
      Do;
x2 = sin(t)*(exp(a)-2*b-(sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)));
y2 = cos(t)*(exp(a)-2*b-(sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)));
      End;
Else
      Do;
x = sin(t)*(exp(a)-2*b-(sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)));
y = cos(t)*(exp(a)-2*b-(sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)*sin(t/12)));
      End;
OUTPUT;
END;

pi=constant('pi');
do x1=0.20 to (pi/4+0.20) by 0.01;
y1=3*sin(2*(x1-0.20))+2.5;
output;
x1=-1*x1;
output;
x1=-1*x1;
end;
run;
SYMBOL1 C=Red;
SYMBOL2 C=Blue;
SYMBOL3 C=Yellow;
PROC GPLOT ;
PLOT  y*x  y1*x1 y2*x2/ Overlay;
RUN;