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- Copy rows and change one column value

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Mar 15, 2017 10:39 AM
(3414 views)

I'm finding the row documentation very frustrating. Is it possible to copy an entire row and add it to the current data table? My rows have many columns so I do not want to go through every column name doing this.

Alternatively, if it's possible to make a single one-way graph from two different data tables, then this will also solve my problem. Does JMP have that capability?

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```
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\big class.jmp" );
// select a row
dt << select where( Row() == 5 );
// subset the data
dtsel = dt << subset( invisible, selected rows( 1 ), selected columns( 0 ) );
// put the tables together
dt = dt << Concatenate( dtsel, append to first table( 1 ) );
// delete the unneeded supbet table
colose( dtsel, nosave );
```

Jim

5 REPLIES 5

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Re: Copy rows and change one column value

You could make the one row a subset table, and then concatenate it with the larger table.

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Re: Copy rows and change one column value

Can you please reply with the JSL scrip for doing so?

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```
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\big class.jmp" );
// select a row
dt << select where( Row() == 5 );
// subset the data
dtsel = dt << subset( invisible, selected rows( 1 ), selected columns( 0 ) );
// put the tables together
dt = dt << Concatenate( dtsel, append to first table( 1 ) );
// delete the unneeded supbet table
colose( dtsel, nosave );
```

Jim

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Re: Copy rows and change one column value

Thank you this worked for me and I've obtained my end goal.

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Re: Copy rows and change one column value

Here's an example that uses Big Class. I make a subset table using row 8, and then append it back to the original Big Class table.

```
dt1 = open("$sample_data/Big Class.jmp");
// Make a subset using row 8
dt2 = dt1 << Subset( Selected Rows( 0 ), Rows( [8] ),
Selected columns only( 0 )
);
// Concatenate the new table back to big class
dt1 << concatenate(dt2, append to first table);
```