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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 line of this function (that is the action of the if clause), that allows us to type the variable names and/or expressions to examine their values at that point in the execution. The dbcont function can be used to carry on the execution, and dbquit is used to quit the debug mode.
Note that the prompt becomes K>> in the debug mode.
>> dbstop testifelse 5
>> testifelse(-2)
5 disp('In middle of range')
K>> x
x =
-2
K>> 3 < x
ans =
0
K>> 3 < x < 6
1
K>> dbcont
In middle of range
end
>>
By typing the expressions 3 < x and then 3 < x < 6, we can conclude that the expression 3 < x will return either 0 or 1. Both 0 & 1 are less than 6, therefore the expression will always be true, despite of the value of x!
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
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
Function Stubs: The other common debugging method, which is used when there is a script main program which calls many functions, is to use the function stubs. A function stub
Use of function polyval: The better the curve fit, the more exact these interpolated and extrapolated values will be. By using the subplot function, we can loop to display the
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];
Example of customizing plots: As the other illustration of customizing plots, the pieces of a pie chart can be "exploded" from the rest. In this situation, the two vectors are
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.
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
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 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
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