How can I define a variable with a name based on an input?

86 views (last 30 days)
Nicole
Nicole on 13 Aug 2018
Commented: Paolo on 14 Aug 2018
I want my script to create new variables whose names depend on an input, e.g.:
ship_name = input('Name of the ship: ','s');
[the string, ship_name, here]_name = ship_name %#ok<NOPTS>
I know I want the latter half of this second variable to be '_name', but how do I get the former half to be identical to the string input by the user, so this happens in the command window:
Name of the ship: Orange
Orange_name =
"Orange"
Over time, many different ships exist, such that there may be an Orange_name, a Green_name, and a Blue_name. My script will later know which ship it's working with:
ship_current = input('Which ship are you working with? ');
And I want it to return the string called Orange_name when ship_current = "Orange", the string called Green when ship_current = "Green", and so forth. This may seem useless, but there will also be ship_mass and ship_capacity variables, so the script will basically remember the details of each ship until they're needed later. I also think I can achieve the same thing by concatenating onto a cell containing this information, but I had this variable name idea and wanted to know if it was feasible to do this, regardless of how unnecessarily difficult it may be.
  3 Comments
Paolo
Paolo on 14 Aug 2018
Very good advice Stephen. Sometimes I just focus on answering the question without seeing the bigger picture, I guess that comes with experience :)

Sign in to comment.

Accepted Answer

Paolo
Paolo on 13 Aug 2018
If I am understanding your question correctly, you can use:
ship_name = input('Name of the ship: ','s');
assignin('base',strcat(ship_name,'_name'),ship_name);
Will create a variable named such as Orange_name with value Orange.
  3 Comments

Sign in to comment.

More Answers (0)

Products


Release

R2017b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by