Evaluating a string, MATLAB in Engineering

Assignment Help:

Evaluating a string:

The function eval is used to compute a string as a function. For illustration, below is the string 'plot(x)'is interpreted to be a call to plot the function, and it generates the plot as shown in figure.

 

90_Evaluating a string.png

>> x = [2 6 8 3];

>> eval('plot(x)')

This would be helpful if the user entered the name of the type of plot to use. In illustration, the string that user enters (in this situation 'bar') is concatenated with the string '(x)' to generate the string 'bar(x)'; this is then computed as a call to the bar function as shown in figure.

Also, the name of the plot type is used in the title.

155_Evaluating a string1.png


Related Discussions:- Evaluating a string

Interpolation and extrapolation, Interpolation and extrapolation: In m...

Interpolation and extrapolation: In most cases, it is desired to estimate values other than at the sampled data points. For illustration, we may want to estimate what the temp

Function fieldnames - structure functions, Function fieldnames - structure ...

Function fieldnames - structure functions: The function fieldnames will return the names of the fields which are contained in the structure variable. >> pack_fields = fiel

Subfunctions, Subfunctions: Though, it is possible to have more than o...

Subfunctions: Though, it is possible to have more than one function in a given M-file. For illustration, if one function calls the other, the first function would be the prima

Vectors of structures, Vectors of Structures: In numerous applications...

Vectors of Structures: In numerous applications, involving database applications, information generally would be stored in the vector of structures, instead of in individual s

Appending variables to the mat-file, Appending variables to the Mat-File: ...

Appending variables to the Mat-File: Appending to the file adds to what has been saved in a file, and is accomplished by using the -append option. For illustration, supposing

Function iscellstr - string, Function iscellstr - string function: The...

Function iscellstr - string function: The function iscellstr will return the logical true when a cell array is a cell array of all the strings, or logical false if not. >>

Smoothing values, How can I use the weighted moving average formula in matl...

How can I use the weighted moving average formula in matlab to smooth a column data of 404 values?

Examine exponential function - algorithm, Examine exponential function: ...

Examine exponential function: The algorithm for the main script program is shown below:  Call a function eoption to show the menu and return the user's choice.  Loop

Program to counting in a while loop, Program to Counting in a while loop: ...

Program to Counting in a while loop: The script initializes variable counter to 0. Then, in the while loop action, each and every time the user successfully enter a number, th

Algorithm for expfn function, Algorithm for expfn function: The algori...

Algorithm for expfn function: The algorithm for expfn function is as shown:  receives the value of x as the input argument.  Prints the value of exp(x).  assigns a

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