How do i set the marker and line commands to accept the symbols as inputs

2 次查看（过去 30 天）
Adam Luckman
Adam Luckman 2018-11-2
评论： Walter Roberson 2018-11-2
p.LineStyle = input('Select which line style you would like: ','s');
while p.LineStyle ~= ('''-''' | '''--''' | ''':''' | '''-.''' | '''none''')
p.LineStyle = input('Refer to the PDF document for valid inputs: ');
end
I get the error 'Matrix dimensions must agree'
  1 个评论
Walter Roberson
Walter Roberson 2018-11-2
Note that if p is a Mathworks graphics object, then setting p.LineStyle to something invalid would error before getting to the while. That is why I store into a different variable and leave the setting of p.LineStyle until after the input has been validated.

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采纳的回答

Star Strider
Star Strider 2018-11-2
编辑：Star Strider 2018-11-2
See if the strcmpi (link) function will do what you want.
This works for me:
p.LineStyle = input('Select which line style you would like: ','s');
while ~strcmpi(p.LineStyle, {'''-''' , '''--''' , ''':''' , '''-.''' , '''none'''})
p.LineStyle = input('Refer to the PDF document for valid inputs: ');
end

更多回答（3 个）

Caglar
Caglar 2018-11-2
编辑：Caglar 2018-11-2
You need to make it
input('Refer to the PDF document for valid inputs: ','s')
Check input help page for the reason of parameter 's'.
Matt J
Matt J 2018-11-2
编辑：Matt J 2018-11-2
while ~ismember( p.LineStyle ,{'-',':','-.','--','none'})
disp 'Refer to the PDF document for valid inputs:', disp ' ';
p.LineStyle = input('Select which line style you would like: ','s');
end
Walter Roberson
Walter Roberson 2018-11-2
valid_styles = {'-', '--', ':', '-.', 'none'};
while true
LineStyle = input('Select which line style you would like: ','s');
if ismember(LineStyle, valid_styles)
p.LineStyle = LineStyle;
break;
end
fprintf('valid styles are: %s\n', strjoin(valid_styles, ' '));
end

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