how to concatenate two fields in a struct ?

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sandy
sandy 2013-9-6
hi...i want to concatenate fields namels data and text data below,how to do this? textdata is the label name for the maindata...any suggestion ?
struct(1*1)
maindata(138*173 double)
textdata(138*1 cell)

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Geert
Geert 2013-9-6
Sandy,
it is still very unclear what you exactly want. In what format do you want your output data?
Do you want something like the following example?
cc = struct;
cc.maindata = [0 +1.193790E+1 +5.275883E+0 +1.796951E+1;
0 +1.188781E+1 +6.487981E+0 +1.919098E+1
0 +1.175415E+1 +5.493386E+0 +1.851824E+1];
cc.textdata = {'SAMPLE_20130606_1358'; 'SAMPLE_20130606_1408'; 'SAMPLE_20130606_1418'}
concatenateddata = cell(size(cc.maindata,1),size(cc.maindata,2) + size(cc.textdata,2));
for ii = 1:size(cc.maindata,1)
concatenateddata{ii,1} = cc.textdata{ii};
for jj=1:size(cc.maindata,2)
concatenateddata{ii,jj+1} = cc.maindata(ii,jj);
end
end

更多回答（1 个）

Geert
Geert 2013-9-6
Can you be more specific?
Do you want to convert the (double) data in maindata to a string, and concatenate it to the strings in the cell array textdata? In that case, here is an example code snippet on how to do it:
cc = struct;
cc.maindata = [1 2;3 4; 5 6];
cc.textdata = {'firststring'; 'secondstring'; 'thirdstring'}
concatenateddata = cell(3,1);
for ii = 1:size(cc.maindata,1)
concatenateddata{ii} = [num2str(cc.maindata(ii,:)),' ', cc.textdata{ii}];
end
Please make your question more understandable.
  2 个评论
sandy
sandy 2013-9-6
编辑：sandy 2013-9-6
HI...your code concatenating both to singel cell as output,but i need output in each cell(like horzcat()) ... inside textdata(138*1) present in each cell
SAMPLE_20130606_1358
SAMPLE_20130606_1408
SAMPLE_20130606_1418
.....
inisde maindata(138*173) in each cell
0 +1.193790E+1 +5.275883E+0 +1.796951E+1
0 +1.188781E+1 +6.487981E+0 +1.919098E+1
0 +1.175415E+1 +5.493386E+0 +1.851824E+1
i need to concatenate both,,where string and numeric in each cell of the output variable,it like below
SAMPLE_20130606_1358 0 +1.193790E+1 +5.275883E+0 +1.796951E+1
SAMPLE_20130606_1408 0 +1.188781E+1 +6.487981E+0 +1.919098E+1
SAMPLE_20130606_1418 0 +1.175415E+1 +5.493386E+0 +1.851824E+1
SAMPLE_20130606_1428 0 +1.282015E+1 +5.903331E+0 +1.901381E+1
SAMPLE_20130606_1438 0 +1.160890E+1 +5.647130E+0 +2.120915E+1
SAMPLE_20130606_1448 0 +1.158797E+1 +5.673629E+0 +1.841896E+1
sandy
sandy 2013-9-10
see this query http://www.mathworks.in/matlabcentral/answers/86404-how-to-read-sts-file-in-matlab
there.i used importdata() to read my file and output as struct containing names and values as separate.so i used concatenate to join both to save in excel..

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