Integrating a variable into a file name?

Re: Integrating a variable into a file name?

Sat, 12 Feb 2011 20:56:00 +0000

I cleared all the variables and now in works.

I don't get that error any more but I'm not sure what really messed everything up. Thanks for your help.

Re: Integrating a variable into a file name?

Sat, 12 Feb 2011 19:53:48 +0000

Ah, sorry I am not familiar with java. I am familiar with TI-89 BASIC and I do understand indirection, though. The example I gave stored the value X^2 into varX where X is a number from 1 to 10. So 100→var10, 81→var9, et cetera.

Re: Integrating a variable into a file name?

Sat, 12 Feb 2011 19:40:08 +0000

Didn't for me. Don't know why.

I then did something like @Chokladkakan suggested at the bottom. It works but it's ugly.

Re: Integrating a variable into a file name?

Sat, 12 Feb 2011 16:20:10 +0000

This worked for me:

test() Prgm For x,1,10 x*x→#("var"&string(x)) EndFor EndPrgm

Re: Integrating a variable into a file name?

Sat, 12 Feb 2011 11:17:27 +0000

Hi, I'm new around here and before asking something i found this thread, where this part of code that @Dakotah wrote is exactly what i need:

:prog1()
:Program
:For x,1,10
:x*x→#("var"&string(x))
:EndFor
:EndPrgm

I would like to get ("var"&number of time this thing loops) So in this case "var"1,"var"2…"var"10

But it doesn't work. I always get tihis: Indirection string is not a valid variable name

Any ideas to make this work.

Re: Integrating a variable into a file name?

Tue, 07 Sep 2010 21:03:39 +0000

[SORRY Did not mean to post.]

Re: Integrating a variable into a file name?

Sun, 05 Sep 2010 03:07:29 +0000

To use a variable as part of a file name, use the indirection (#) operator. So in your case, if x is a number from 1 to 10, you can use #("mat"&string(x)). An example:
:prog1()
:Program
:For x,1,10
:x*x→#("var"&string(x))
:EndFor
:EndPrgm

Re: Integrating a variable into a file name?

Sat, 20 Mar 2010 16:21:05 +0000

Alright! I am not entirely sure if something equivalent is possible to do in 68k Basic, but instinctively, I see another solution, but perhaps not as elegant: if you let exampleproject1/ include all the different variations, sorted into conditional statements and then you call exampleproject(x) and if x is 5, do 5.example. Would that work?

I made a small example to test if my idea worked, which it does:

:test2() :Prgm :For t,1,6 :test(t) :EndFor :EndPrgm

:test(x) :Prgm :If x=1 Then :Disp "Hello!" :ElseIf x=2 Then :Disp "Hey! How are you?" :ElseIf x=3 Then :Disp "I'm good, thanks. You?" :ElseIf x=4 Then :Disp "I'm great, thanks for asking." :Else :Disp "Bye!" :EndIf :EndPrgm

Which, when running test2() outputs:

Hello! Hey, how are you? I'm good, thanks. You? I'm great, thanks for asking. Bye! Bye!

Re: Integrating a variable into a file name?

Sat, 20 Mar 2010 16:13:44 +0000

Thanks for the help but I think I was a little unclear
I know how to do this in Java so I'll give an example of the same type of thing in java

File tempFile;

for (int i=0;i<10;i++){
tempFile = new File("/exampleproject1/"+i+".example");
tempFile.doSomething;}

that program would preform the method doSomething for the files (/exampleproject1/) 0.example, 1.example, 2.example, 3.example, etc.
In this Java program the way I integrated the filename with the variable was ("/exampleproject1/"+i+".example")
I need some equivalent of this in TI Basic

Re: Integrating a variable into a file name?

Sat, 20 Mar 2010 15:59:27 +0000

I might be misunderstanding you, and if so, please forgive me, but here goes:

You know how you have to write () after a program name in 68k? Well, if you in the program code

name()
Prgm
EndPrgm

write

name(x)

you can call upon the entered variable x later within the program!

Integrating a variable into a file name?

Sat, 20 Mar 2010 15:38:54 +0000

I am creating a program that requires the manipulation of several files of a similar title (Appfolder/mat*x*)
where x represents a number between 1 and 10. (so the files i am working with are called mat1, mat2, mat3, mat4,..etc)
I want to know if there is a way I can call upon these files with a variable so I can use a for loop to repeat a similar procedure on them
whenever i try just calling upon matx it just thinks I mean a file called matx not mat1 or mat2 or whatever x equals?
Example
For i,1,10,1
For x,1,3,1
For y,1,3,1
Define Appfolder/mat*i*[x,y]=…etc.
EndFor
EndFor
EndFor

*Edit* matx is not a program. It is a matrix variable I need to edit within the context of a program