Script to assign Row states to unique Columns values

JMPstart

Hi JMP experts! I need your help:

I am trying to open a groups of files with variable length of data rows. I need to add a new column to each file while it is opened, with the value in the new column filled with the row numbers. For example, if I am opening a file with 10 rows, the new column added will be filled with 1,2,3,...10.

 

How do I achieve that with a script?

 

Thank you so much!

 

JMPstart

uday_guntupalli

@JMPstart, 
You can use the row() function, independent of how many rows you have in the data table. You can implement it as shown below

Clear Log(); Clear Globals(); 

// Open Sample Data
dt = Open( "$SAMPLE_DATA/Cities.jmp" ); 

// Add a column with row number 
dt << New column("RowNum",Numeric,Continuous,Formula(Row()));