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how to save 3 files in one script?

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Liyun
Liyun 2014-3-9
评论： Image Analyst 2014-3-9
I want to derive 3 subsets of data using one input data, but I am don't know how to save them to 3 files. There must be something wrong with the syntax? What is the correct syntax of saving files?
Thank you so much
function [data2,data3,data4]=clean_data(file)
load(file);
jj=1;
for ii=1:length(data)
if(~isnan(data(ii,2)))
data2(jj,:)=data(ii,:);
jj=jj+1;
end
end
ll=1;
for kk=1:length(data2)
if(data2(kk,2)==1)
data3(ll,:)=data2(kk,:)
ll=ll+1;
end
end
mm=1;
for kk=1:length(data2)
if(data2(kk,2)==0)
data4(mm,:)=data2(kk,:)
mm=mm+1;
end
end
save('clean_data','newdataC','newdataE')
end

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采纳的回答

the cyclist
the cyclist 2014-3-9
It is not clear to me what you want to do. I am guessing that you want to
  • Save data2 to the file 'clean_data.mat'
  • Save data3 to the file 'newdataC.mat'
  • Save data4 to the file 'newdataE.mat'
If that is correct, here is how to do that:
save('clean_data','data2')
save('newdataC','data3')
save('newdataE','data4')
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the cyclist
the cyclist 2014-3-9
In the save() command, the first input is the filename, and the rest are the variables that will be saved to that file. You can only save to one file at a time.
In my syntax, I save the variable data2 to the file clean_data, then data3 to file newdataC, etc.
In your syntax, you are telling MATLAB to save the variables named newdataC and newdataE to the file named clean_data.
You get an error with your syntax because there is no variable named newdataC.
Image Analyst
Image Analyst 2014-3-9
I think it would be more explicit to say
save('clean_data.mat','data2')
save('newdataC.mat','data3')
save('newdataE.mat','data4')
which would make it clear that the first arg is a filename, not just some variable.

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