If statement display problem

Question

Anna 2017-4-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/333133-if-statement-display-problem

评论： Star Strider 2017-4-1

Hello, I am checking if all values of a vector Fr are within a certain range as shown:

% code as follows:
for i = 1:1:length(loop)
if Fr(i) > 0.1 && Fr(i) < 0.3
  disp('0.10 < Fr < 0.30. Criteria met.')
else
  disp(' Fr outside interval. Criteria not met.')
end
end

Here Fr is a vector with length(loop) values. I want the code to show the message only once if all the elements of Fr are within the range. If not, the message for Fr outside the interval should also only be shown once.

In other words, when running the code I want only one message to be displayed. Either all values are within the interval or they are not.

Is there a way of doing this?

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Answer 1

Star Strider 2017-4-1

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/333133-if-statement-display-problem#answer_261364

在 MATLAB Online 中打开

Use the all function:

Fr = 0.0001*rand(1,10)+0.2;                         % Create ‘Fr’
if all((Fr > 0.1) & (Fr < 0.3))
  disp('0.10 < Fr < 0.30. Criteria met.')
else
  disp(' Fr outside interval. Criteria not met.')
end