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- new column with initial data values

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Oct 18, 2011 5:54 AM
(2753 views)

Hi

Does anyone know how to script the creation of a new column with initial data values?

Below is my best guess, but it doesn't work. Cannot find any help on "initial data values" in the scripting guide.

BR, Marianne

dt=current data table();

dt<<new column("Selected", character, initial data values(constant("YES")));

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Oct 18, 2011 6:54 AM
(5293 views)

Solution

You're close. This will work:

dt=current data table**()**;

dt << new column**(**"Selected", character, << set each value**(**"YES"**))**;

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Oct 18, 2011 6:54 AM
(5294 views)

You're close. This will work:

dt=current data table**()**;

dt << new column**(**"Selected", character, << set each value**(**"YES"**))**;

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Nov 1, 2011 1:47 PM
(2647 views)

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Jun 16, 2017 2:56 PM
(2357 views)

Hi!

I have a similar but a little more complicated problem:

The initial value I try to set is a function of loop index.

Suppose I have 50 files to open. When open each file, I want to add a new column, and fill the new column with the file name of this file. The initial value is supposed to be a constant. But, when this function is used within a loop, the code seems stuck. It opens the first file, without filling the initial value, and stopped.

How should I make it work?

Thanks a lot.

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Jun 19, 2017 2:29 AM
(2333 views)

Maybe something like this?

```
NamesDefaultToHere(1);
// Make some tables, save and close them, but keep a list
n = 4;
fList = {};
for(t=1, t<=n, t++,
fName = "Table "||Char(t)||".jmp";
dt = NewTable(fName, NewColumn("Data", Formula(RandomInteger(10))));
dt << AddRows(20);
InsertInto(fList, fName);
Close(dt, Save("$DESKTOP/"||fName));
);
// Open the tables in the list and add the column
for(t=1, t<=NItems(fList), t++,
fName = fList[t];
dt = Open("$DESKTOP/"||fName);
colVals = {};
for(r=1, r<=NRow(dt), r++,
InsertInto(colVals, fName);
);
dt << NewColumn("File Name", Character, Values(colVals));
DeleteFile("$DESKTOP/"||fName);
);
```

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Jun 19, 2017 10:07 AM
(2320 views)