Display values with fprintf

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Andrea Tersigni
Andrea Tersigni 2017 年 2 月 24 日
コメント済み: Massimo Zanetti 2017 年 2 月 25 日
I would like to display "The return is ... and the standard deviation is ..."? Returns are of the form 6.0033e-04 while standard deviations 0.0207 What should I write in formatSpec?
if true
Mean_return = mean(...);
Standard = (...)
formatSpec = 'Return= %.. SD= %.. \n';
fprintf(formatSpec,Mean_return,Standard)
end
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Massimo Zanetti
Massimo Zanetti 2017 年 2 月 25 日
Facing reality, (in my opinion) we should come to a conclusion which is user-independent. We suggest people to (1) ask questions the right way, (2) accept the answers, etc. Realistically, we cannot believe they are all going to do that.. I think this is why some high-reputation contributors have moderating tools such as delete questions, accept answers, etc. If properly used, these tools allows us to mitigate for incorrect and unpolite utilization of this forum.
It is clear the guy here didn't get the point, so let's clear-up the history and go on.
Max

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回答 (2 件)

Massimo Zanetti
Massimo Zanetti 2017 年 2 月 24 日
編集済み: Massimo Zanetti 2017 年 2 月 24 日
Here it is
ret = 0.000065003;
std = 0.0207;
fprintf('The return is %.4e and the standard deviation is %.4f \n',ret,std)
to get
The return is 6.5003e-05 and the standard deviation is 0.0207
read the fprintf help page to get printing options based on the number formats.
  2 件のコメント
Massimo Zanetti
Massimo Zanetti 2017 年 2 月 24 日
It means that your variable(s) me and/or st are structures instead of numerical values. Check it.

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Jan
Jan 2017 年 2 月 24 日
編集済み: Jan 2017 年 2 月 24 日
formatSpec = 'The return is %g and the standard deviation is %g'
or to specify the decimals:
formatSpec = 'The return is %.4g and the standard deviation is %.4g'

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