Inserting a tab character into a string

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Matthew Moynihan
Matthew Moynihan 2011-2-3
回答： fernando bordignon 2016-3-23
I am attempting to insert a space into a string. Here is my code:
t1 = 'Control Chart For ';
t2 = '\t';
t3 = num2str(w);
t4 = ' water flow ';
t5 = '\t';
t6 = num2str(o);
t7 = ' oil flow ';
str = strcat(t1, t2, t3, t4, t5, t6, t7);
This should yield:
Control Chart For 5 water flow 3 oil flow
however it yields instead:
Control Chart For\t5 water flow\t3 oil flow
Just adding spaces in the string does not work either and making the string \t instead of '\t' also fails.

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回答（5 个）

Andrew Newell
Andrew Newell 2011-2-3
A nicer way of doing it is
str = sprintf('Control Chart For \t %d water flow \t %d oil flow',w,o)
  2 个评论
Oleg Komarov
Oleg Komarov 2011-2-3
I would go for this approach, it is more readable the way space chars are handled.
Stephen23
Stephen23 2015-2-13
Using sprintf is also faster than concatenating strings.

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Paulo Silva
Paulo Silva 2011-2-3
char(9) instead of only one string doesn't seem to work, I also tried, sprintf('\t'), this way works:
t1 = 'Control Chart For ';
t3 = [char(9) num2str(w)];
t4 = ' water flow ';
t6 = [char(9) num2str(o)];
t7 = ' oil flow ';
str = strcat(t1,t3, t4, t6, t7)
  3 个评论
显示 1更早的评论
Andrew Newell
Andrew Newell 2011-2-3
Absolutely. And I like your diplomatic way of saying I'm wrong!
Walter Roberson
Walter Roberson 2011-2-3
strcat does not remove whitespace from cell strings.

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the cyclist
the cyclist 2011-2-3
Are you trying to insert a tab character, or just white space? If the latter, you can concatenate with square brackets:
>> str = [t1, t3, t4, t6, t7]
Then the trailing whitespace in t1, etc, will not be dropped, and you don't need to manually insert the space.
Looks like this syntax works for tab as well:
>> str = [t1, char(9), t2, t3, t4, t5, t6, t7]
Aleksandar Mojsic
Aleksandar Mojsic 2014-7-20
This will work:
str = sprintf([t1, t2, t3, t4, t5, t6, t7])
fernando bordignon
fernando bordignon 2016-3-23
You can also use the tab itself, but you need to disable the "insert white spaces" option at the editor preferences. Another way of doing that would be by copy pasting the tab character from another editor.

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