想用数据画出空间点

问题没有描述清楚
y是8x3矩阵
x是1x8矩阵
xi是行向量
interp1(x,y,xi,'spline')是按照行三次样条内插值函数
yi应该是和xi列数相同的矩阵，且行数为8
所以这么画：
x=1:8;
y=[ 13264.394694 -22334.321487 -4934.716413
13702.629467 -22499.865523 -2089.711641
13954.852436 -22413.958243 791.795039
14051.898391 -22054.784726 3659.438361
14029.053231 -21408.610812 6462.980438
13924.494347 -20470.464323 9153.238332
13777.617888 -19244.476162 11682.996972
13627.322516 -17743.865250 14007.886777];
xi = 1:1/900:8;
yi= interp1(x,y,xi,'spline');
for i=1:8
plot(xi,yi(i,:))
hold on
end
hold off