Advanced file input and output, MATLAB in Statistics

Assignment Help:

Advanced File Input and Output:

In that section, we saw how to read the values entered by user using the input as well as the output functions disp and fprintf, that shows information in windows on the screen. For file input and output (file I/O), we used the load and save the functions, that can read from a data file into the matrix, and write from a matrix to a data file. We also saw that there are three various operations which can be performed on files: reading from files, writing to files (implying writing to the starting of a file), and appending to a file (that is writing to the end of the file).

There are many different file types that use dissimilar filename extensions. Faraway, using load and save, we have worked with files in the ASCII format that usually use either the extension .dat or .txt. The load command works only if there are similar number of values in each line and the values are of similar type, so that the data can be stored in a matrix; the save command writes only from the matrix to a file. When the data to be written or file is to be read in a different format, then the lower level file I/O functions should be used.

The MATLAB software has functions which can read and write data from variousfile types like spreadsheets; usually Excel spreadsheets have the filename extension .xls. It has its own binary file type also that uses the extension .mat.

These are generally known as MAT-files, and can be used to store the variables which have been generated in the MATLAB.



Related Discussions:- Advanced file input and output

Illustration of mode, Illustration of Mode When there is more than one ...

Illustration of Mode When there is more than one value with similar (highest) frequency, then the smaller value is mode. In the case below, as 3 and 8 appear twice in the vecto

Example of core objects, Example of Core objects: The one core graphic...

Example of Core objects: The one core graphics object is a line that is also what the plot function produces. Here is an illustration of generating a line object, altering som

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

Assignment , Determine sequence weights for the sequences ACTA, ACTT, CGTT,...

Determine sequence weights for the sequences ACTA, ACTT, CGTT, and AGAT in problem 1 by using Thompson, Higgins, and Gibson method a) compute pairwise distances between sequences

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

Working of editor and debugger, Working of Editor and debugger: Editor...

Working of Editor and debugger: Editor/Debugger, or commands can be typed from Command Window. For illustration, the dbstop command below will set a breakpoint in the fifth li

Nested structures, Nested Structures: The nested structure is a struct...

Nested Structures: The nested structure is a structure in which at least one of the members is itself a structure. For illustration, a structure for the line segment may co

Statistics, Statistics There are numerous statistical analyses which ca...

Statistics There are numerous statistical analyses which can be executed on data sets. In MATLAB software, the statistical functions are in the data analysis help topic known a

Create a custom chi-square function in matlab, Introduction and Purpose ...

Introduction and Purpose In the lectures and tutorials you have been introduced to a number of probability distributions. You have also learned that modelling any system (such

Steps for input output functions - lower level file, Steps for input output...

Steps for input output functions - Lower level file: The steps involved are as shown below:  Open the file.  Read the file, write to the file, or append to the file.

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