contour函数报错怎么办？

panphp

clear
+ m; T( T6 M& Yncinfo('rhum.mon.mean.nc');
2 w6 C' Y# ^. N/ v( h( Wy_len=60;
. ?: y( V% ?" k% H1 S+ Dt_len=854;
) d! m3 j5 e7 V, cz_index=7
x_index=120
* O& }' W5 _! Q9 Yx = ncread('rhum.mon.mean.nc','lon');%x
z = ncread('rhum.mon.mean.nc', 'level');%z
6 m' i* k0 L1 }2 Iy = ncread('rhum.mon.mean.nc', 'lat');%y
t = ncread('rhum.mon.mean.nc', 'time');%t
rhum = ncread('rhum.mon.mean.nc', 'rhum');
' K# M) Y2 E. tfigure; hold on;
6 f) e, o- g6 Z" R5 fdraw_y = 30:1:60;
8 e7 ^; E: G; k0 A9 ^draw_t = 1:1:854;
f = rhum(x_index,draw_y,z_index,draw_t)
for ii = 1:1:numel(draw_y)
  }5 t& H& F/ U; }    for jj = 1:1:numel(draw_t)
. l& |1 c7 ^% r& C2 ^0 i        Z(jj,z_index,ii,x_index) = f(x_index,draw_y(ii),z_index,draw_t(jj));
, C) K, F1 M/ q2 h6 k3 ^6 X    end
end
& B' D5 K# {, v  V4 [[draw_y,draw_t] = meshgrid(draw_y,draw_t);
contour (draw_y,draw_t,Z);
- {8 t. R/ J! t* ~; Q5 `' m3 V- g
0 l4 L" F2 l& Q% i错误显示 试图访问 f(120,30,7,1)；由于 size(f)=[1,31,1,854]，索引超出范围。
改了循环里面之后会显示 试图访问 f(1,32,1,1)；由于 size(f)=[1,31,1,854]，索引超出范围。
请教大神，非常感谢！

Sky_wm

可能参数超出了范围