Advanced file input and output, MATLAB in Statistics

Assignment Help:

Advanced File Input and output:

Where 'format' involves the conversion characters much like those used in the fprintf function. For illustration, to read the file 'subjexp.dat' just shown, we can do the following (again, for ease, omitting the error-check of fopen & fclose):

>> fid = fopen('subjexp.dat');

>> subjdata = textscan(fid,'%f %c');

>> fclose(fid)

 

The format string '%f %c' identifies that on each line there is a double value followed by the space followed by the character. This generates a 1 × 2 cell array variable known as the subjdata. The initial element in this cell array is a column vector of doubles (the initial column from the file); the next element is a column vector of characters (the next column from the file), as shown here:

 

>> subjdata

subjdata =

    [5x1 double] [5x1 char]

>> subjdata{1}

ans =

    5.3000

    2.2000

    3.3000

    4.4000

    1.1000

>> subjdata{2}

ans =

a

b

a

a

b

To refer to separate values from the vector, it is essential to index into the cell array by using curly braces and then index into the vector by using the parentheses. 


Related Discussions:- Advanced file input and output

Sorting strings, Sorting Strings: For the matrix of strings, the sort ...

Sorting Strings: For the matrix of strings, the sort function works exactly as formerly for numbers. For illustration, >> words = char('Hi', 'Hello', 'Howdy', 'Goodbye', '

Illustration of median, Illustration of Median When the vector is not i...

Illustration of Median When the vector is not in sorted order to start with, the median function will still return the right answer (it will sort the vector automatically). For

Nested for loops, Nested for Loops: The action of a loop can be any of...

Nested for Loops: The action of a loop can be any of the valid statement(s). Whenever the action of a loop is the other loop, this is known as nested loop. As an illustrati

Editor and debugger, Editor/Debugger: The MATLAB has numerous useful f...

Editor/Debugger: The MATLAB has numerous useful functions for debugging, and debugging can also be completed through its editor, which is known as the Editor/Debugger. Typi

Persistent variables, Persistent Variables: Generally, whenever a func...

Persistent Variables: Generally, whenever a function stops executing, then the local variables from that function are cleared. That means that each and every time a function i

Combining nested for loops and the if statements, Combining Nested FOR Loop...

Combining Nested FOR Loops and the IF Statements: The statements inside a nested loop can be any of the valid statement, involving any selection statement. For e.g., there can

Function sortrows - sorting strings, function sortrows - sorting strings: ...

function sortrows - sorting strings: The function sortrows sorts each and every row as a block, or group, and it also will work on numbers. Here in this illustration the rows

Example of mode, Example of Mode When no value appears more often than ...

Example of Mode When no value appears more often than any other, the smallest value in the vector will be the mode of the vector. >> shortx = [2 5 1 4]; >> mode(shortx

Variable packages, Variable packages: Variable packages are now the ve...

Variable packages: Variable packages are now the vector of structures, hence each and every element in the vector is a structure. To show one element in the vector, an index i

Logical built-in functions, Logical Built-In Functions: There are buil...

Logical Built-In Functions: There are built-in functions in the MATLAB which are useful in conjunction with vectors or matrices of all logical true or false values; two of the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd