matlab从大到小排序的语句,从小到大排序的方法

%N的求解

%注意：从小到大排序的方法：sort()函数与fliplr()函数的结合使用。

clc

clear

%--------------A为cheng_xu的X-----------------------------

A=[82,77.9000000000000,0.200425033061791;

74.2000000000000,75.8000000000000,0.188126683675250;

78.2000000000000,75.6000000000000,0.192806361387551;

79.4000000000000,76.9000000000000,0.195943296778620;

71,81.5000000000000,0.191442498644144;

68.4000000000000,75.5000000000000,0.180589320900021;

77.5000000000000,74.2000000000000,0.190158814088605;

71.4000000000000,72.3000000000000,0.180212499893066;

72.9000000000000,80.4000000000000,0.192384685823835;

74.3000000000000,79.8000000000000,0.193347200228280;

72.3000000000000,71.4000000000000,0.180175910888510;

63.3000000000000,72.4000000000000,0.170347494596538;

65.9000000000000,73.9000000000000,0.175466375025804;

72,77.1000000000000,0.187069264001191;

72.4000000000000,78.4000000000000,0.189219292318112;

74,67.3000000000000,0.177048506423094;

78.8000000000000,80.3000000000000,0.199535696666457;

73.1000000000000,76.7000000000000,0.187916545911268;

72.2000000000000,76.4000000000000,0.186423988965194;

77.8000000000000,76.6000000000000,0.193587196142667;

76.4000000000000,79.2000000000000,0.195173258322604;

71,79.4000000000000,0.188766493230544;

75.9000000000000,77.4000000000000,0.192262722475318;

73.3000000000000,76.1000000000000,0.187398699704490;

77.1000000000000,79.5000000000000,0.196419088500140;

81.3000000000000,74.3000000000000,0.194974051520026;

64.8000000000000,77,0.178059671504641;

81.3000000000000,79.6000000000000,0.201727779468635];

A1=A(:,1)';  %提取第一列数据

A2= sort(A1);   %第一列数据升序排列

A2=fliplr(A2);  %颠倒位置，得到 由大到小排列

n=length(A2);

for i=1:n   %循环的作用：将原矩阵所在位置的数值，用排序后，该数值所对应的

for j=1:n            %      序号代替(下同)。

if A1(1,j)==A2(i)

A1(1,j)=i;

break;

end

end

end

A1_new=A1; %完成更替。

A1=A(:,2)';  %提取第二列数据

A2= sort(A1);   %第二列数据升序排列

A2=fliplr(A2);  %颠倒位置，得到由大到小排列

n=length(A2);

for i=1:n

for j=1:n

if A1(1,j)==A2(i)

A1(1,j)=i;

break;

end

end

end

A1_2_new=A1; %完成更替。

A1=A(:,3)';  %提取第三列数据

A2= sort(A1);   %第三列数据升序排列

A2=fliplr(A2);  %颠倒位置，得到由大到小排列

n=length(A2);

for i=1:n

for j=1:n

if A1(1,j)==A2(i)

A1(1,j)=i;

break;

end

end

end

A1_3_new=A1; %完成更替。

N=[A1_new',A1_2_new',A1_3_new'];