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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.
Program of Persistent variables: The program below elaborates this. The script calls a function func1 that initializes a variable count to 0, then increment it, and print the
Illustration of Customizing plots: Illustration, the bar and barh functions by the default place a width of 0.8 between bars. Whenever called as bar(x,y), the width of 0.8 is
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
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
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
Function polyval - interpolation: The function polyval can then be used to compute the polynomial at particular values. For illustration, we could compute at every value in th
Logical errors: The Logical errors are more complicated to locate, as they do not result in any error message. The logical error is a mistake in reasoning by the programmer, b
Tracing: Sometimes, when a program has loops and/or selection statements and is not running properly, it is helpful in the debugging process to know exactly which statements h
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
Example of Functions which complete a task: For illustration, the function below just prints the number arguments passed to it in a sentence format: As this function i
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