Reading from files, MATLAB in Statistics

Reading from Files:

There are many lower level functions which read from files. The function fscanf reads the formatted data into a matrix, by using conversion formats like %s for strings, %d for integers, and %f for floats. The function textscan reads text data from a file and stores it in the cell array. The fgetl and fgets functions both read the strings from a file one line at a time; the dissimilarity is that the fgets holds the newline character when there is one at the end of the line, while the fgetl function gets rid of it. All these functions at first need opening the file, and then closing it when terminated.

As the fgetl and fgets functions read one line at a time, such functions are usually in some form of a loop. The fscanf and textscan functions can read the whole data file into one data structure. In terms of the level, these two functions are somewhat in between the load function & the lower level functions like fgetl. The file should be opened by using fopen first, and must be closed by using fclose afterward the data has been read. Though, no loop is needed; they will read in the whole file automatically but into the data structure.

 

 

Posted Date: 10/20/2012 6:18:34 AM | Location : United States







Related Discussions:- Reading from files, Assignment Help, Ask Question on Reading from files, Get Answer, Expert's Help, Reading from files Discussions

Write discussion on Reading from files
Your posts are moderated
Related Questions
Median The median is defined only for a data set which has been sorted first, that means that the values are in order. The median of a sorted set of data values (n) is defined

Illustration of Indexing: Though, rather than of creating the index vector manually as shown here, the process to initialize the index vector is use to a sort function. The al

bjjh

Illustration of Binary search: An illustration to search for the key of 91 in the vector is as shown below: The table below shows what will happen in each iteration of

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

Illustration of Input in a for loop: In this illustration, the loop variable iv iterates through the values 1 through 3, therefore the action is repeated three times. The acti

Illustrations of Sequential search: The two illustrations of calling such function is as shown below: >> values = [85 70 100 95 80 91]; >> key = 95; >> seqsearch

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

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

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