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Strings as Vectors:
The Strings are considered as vectors of characters-or in another words, a vector in which each and every element is a single character-so numerous vector operations can be performed. For illustration, the number of characters in a string can be found by using the length function:
>> length('cat')
ans =
3
>> length(' ')
1
>> length('')
0
Notice that there is a distinction between an empty string, that has a length of zero, and a string consisting of a blank space, that has a length of one.
The Expressions can refer to a separate element, or a subset of a string or a transpose of the string:
>> mystr = 'Hi';
>> mystr(1)
H
>> mystr'
i
>> sent = 'Hello there';
>> length(sent)
11
>> sent(4:8)
lo th
Note that the blank space in the string is a valid character contained by the string.
Blanks function: The blanks function will generate a string consisting of n blank characters-that are kind of hard to see here! Though, in a MATLAB if the mouse is moved to hi
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Illustration of Variance For illustration, for the vector [4, 6, 1, 5], there are n = 4 values therefore n - 1 is 3. The mean of this data set is also 4. The variance will be
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