use the value of an index (i) of a loop and put it in the title of a label

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Mohamed Slama asked May 15, '17 Mohamed Slama commented May 15, '17

use the value of an index (i) of a loop and put it in the title of a label

Hi everybody,

In my model, I want to use the index of my loop in the title of a label. Could you please help me to do that ?

for( i=1 ; i<=400 ; i++)
{
  if(table[i][2] !=0)
  {
    current.machine"i" = table[i][3];
  }
}

I want to use the value of the index 'i' into the title of a label.

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labels loop value index

Answer 1 · 2017-05-15T09:51:41Z

Mischa Spelt answered May 15, '17 Mohamed Slama commented May 15, '17

You cannot do this with the dot notation, you need to explicitly construct the name of the label:

for( i=1 ; i<=400 ; i++)
{
  if(table[i][2] !=0)
  {
    string labelName = "machine" + numtostring(i, 0, 0);
    current.labels.assert(labelName).value = table[i][3];
  }
}

Alternatively, can I suggest that you use a single array-valued label? For example, something like:

current.machines = [];
for( i=1 ; i<=400 ; i++)
{
  if(table[i][2] !=0)
  {
    current.machines.push(table[i][3]);
  }
}

· 3

Mohamed Slama commented · May 15, 2017 at 10:47 AM

@Mischa Spelt

Thank you for your answer but when I tried it it returns this error:

"Invalid type for left side of assignment operation. Must be valid l-value. Type is treenode".

for this line:

"current.labels.assert(labelName) = table[i][3];"

Here is my code:

for(int i=1;i<= table2[7][2];i++)

{

if(table2[i+7][3]!=0)

{

string labelName = "bol" + numtostring(i+7, 0, 0);

current.labels.assert(labelName) = table2[i+7][3];

}

0 ·

Mischa Spelt Mohamed Slama commented · May 15, 2017 at 12:29 PM

Sorry, my bad, there has to be an extra ".value" after the assert. See my updated post.

0 ·

Mohamed Slama Mischa Spelt commented · May 15, 2017 at 12:33 PM

thank you very much :)

0 ·

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