Question

如何在matlab 2d数组中添加字符'，'或'+'。我试过以下方式。

clc 
clear all
close all
min=0;
max=1052;
random_int = randi([min max],5,10)
% random_int=[515,586,942,742;353,588,916,436]
% load('Random_Int_x.mat')
% random_int
[m,n]=size(random_int);
for i=1:1:m
    allOneString = sprintf('%d,' , random_int(i,:));
    allOneString= allOneString(1:end-1)% strip final comma
    Str_1(i,:)=allOneString
%     allOneString= strjoin(arrayfun(@(x) num2str(x),random_int(i,:),'UniformOutput',false),',');
end
 Str_1

输入/矩阵的示例

random_int =
 2     9     7     7     9     8     2     5     7     5
 6     1     9     9     6     1     9     4     1     0
 5     0     8     8     5     6     9     0     4     6
 0     9     9     8     7     5     6     3     7     8
 8     4     2     0     5     5     1     8     2     6

输出：

Str_1 =
5×19 char array
'2,9,7,7,9,8,2,5,7,5'
'6,1,9,9,6,1,9,4,1,0'
'5,0,8,8,5,6,9,0,4,6'
'0,9,9,8,7,5,6,3,7,8'
'8,4,2,0,5,5,1,8,2,6'

这适用于0-9之间的随机数。但是，如果我将输入放在9以上 - > 10 ..然后matlab抛出矩阵维度错误。

Subscripted assignment dimension mismatch.
Error in Number_with_String (line 14)
Str_1(i,:)=allOneString;

对于高于9的输入：

random_int =
76    96    88    23    26    25    92     5    61    86
87    69    32    36    86    39    46    21    55    69
42    26    56    69    55    97    91    78    76    41
74    74    24     3    46    52    29    70    88     4
 7    48    13    69    15    12    79    91    90    24

期待输出：

'76,96,88,23,26,25,92,5,61,86'
'87,69,32,36,86,39,46,21,55,69' ... etc

任何解决此问题的建议......

Answer 1

这是一种方式：

random_int = randi([0 500],5,10); % example data
y = mat2cell(random_int, ones(1,size(random_int,1)), size(random_int,2)); % split into rows
y = cellfun(@(x) sprintf('%i,', x), y, 'UniformOutput', false); % strings with commas
y = cellfun(@(s) s(1:end-1), y, 'UniformOutput', false); % remove last comma from each

示例结果：

>> y
y =
  5×1 cell array
    '74,281,294,376,124,203,211,170,242,334'
    '488,268,31,84,404,74,205,178,215,20'
    '120,242,390,37,113,199,140,375,395,469'
    '455,94,115,476,28,20,365,213,181,31'
    '130,62,138,421,261,105,114,226,398,90'

Answer 2

我建议你使用16b发货的字符串。如果需要，可以将结果转换为char或cellstr。

>> min=0; max=1052;
>> random_int = randi([min max],5,10)

random_int =

        532         145         857         264         616         793         558         494         327         688
        736         157         256         648         578         400         820          12         556         725
        938         271         978         498         965         597         983         354         174         787
       1010         885         368         370         300          79         136         170         633         474
        576         267         207         874         797          56         598         836         276          88

>> str = join(string(random_int),',')

str = 

 5×1 string array

   "532,145,857,264,616,793,558,494,327,688"
   "736,157,256,648,578,400,820,12,556,725"
   "938,271,978,498,965,597,983,354,174,787"
   "1010,885,368,370,300,79,136,170,633,474"
   "576,267,207,874,797,56,598,836,276,88"

>> char(str)

ans =

 5×39 char array

   '532,145,857,264,616,793,558,494,327,688'
   '736,157,256,648,578,400,820,12,556,725 '
   '938,271,978,498,965,597,983,354,174,787'
   '1010,885,368,370,300,79,136,170,633,474'
   '576,267,207,874,797,56,598,836,276,88  '

Answer 3

clc 
clear all
close all
min=0;
max=1052;
random_int = randi([min max],200,10);
[m,n]=size(random_int);
for i=1:1:m
    allOneString = sprintf('%d,' , random_int(i,:));
    allOneString= allOneString(1:end-1);    % strip final comma
    Str_1{i}=allOneString;
end
Str_1=Str_1'

在Matlab数组中使用数字/连接数字和字符串添加字符串

3 个答案: