Operation on file, MATLAB in Statistics

Assignment Help:

Operation on file:

We concentrate first on the fgetl function that reads strings from the file one line at a time. The fgetl functions afford more control over how the data is read than the other input functions. The fgetl function reads one line of data from a file into the string; string functions can be used then to manipulate the data. As fgetl reads only one line, it generally is placed in a loop which keeps going until the end of the file is reached. The function feof returns the logical true if the end of the file has been reached. The function call feof(fid) would return the logical true when the end of the file has been reached for the file specified by fid, or logical false when not. A common algorithm for reading from a file into strings would be as shown below:

  •  Try to open the file; check to make sure that the file open was successful.
  •  If opened, the loop until end of the file is reached. For each of line in the file,

-  read it into the string

- manipulate the data

  •  Try to close the file; check to make sure that the file close was successful. 

 


Related Discussions:- Operation on file

Mode, Mode The mode of a data set is the value which appears most often...

Mode The mode of a data set is the value which appears most often. The built-in function in a MATLAB for this is known as the mode. >> x = [9 10 10 9 8 7 3 10 9 8 5 10];

Graphics objects, Graphics objects: The objects involve graphics primit...

Graphics objects: The objects involve graphics primitives like lines and text, and also the axes used to orient the objects. These objects are organized hierarchically, and the

Functions which complete a task without returning values, Functions which c...

Functions which complete a task without returning Values: Most of the functions do not compute values, but instead of accomplish a task like printing formatted output. As thes

Areacirc function, Areacirc function: The areacirc function can be cal...

Areacirc function: The areacirc function can be called from the Command Window as shown here, or from a script. Here is a script which will prompt the user for the radius of o

Illustration of indexing into vectors of structures, Illustration of Indexi...

Illustration of Indexing into vectors of structures: For illustration, the function to print the information from packages has been modified therefore in addition to the vecto

Representing logical true and false, Representing Logical true and False: ...

Representing Logical true and False: It has been stated that expressions which are theoretically true really have the integer value of 1, and expressions which are theoretical

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', '

Example of function stubs, Example of Function stubs: The three functi...

Example of Function stubs: The three functions have not so far been written, though, therefore the function stubs are put in place so that the script can be executed and teste

Polynomials, Polynomials: Simple curves are polynomials of various deg...

Polynomials: Simple curves are polynomials of various degrees, or orders. The degree is the integer of the highest exponent in the expression. The illustrations are as follows

Bus311.., #qYou will need to examine two of the nine sections of data: one ...

#qYou will need to examine two of the nine sections of data: one section of qualitative data (choose either Gender or Position) one section of quantitative data (choose either Intr

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