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- Re: assigned spec limits from limits column

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Jan 29, 2018 3:55 AM
(3053 views)

Hi,

I have a data table with the following columns, how can I assign the limits to the value column as property?

meaning when I plot value by date ill see those limits automatically

I tried

```
:value << set property(
"spec limits",
{LSL( : LCL ) , USL( : UCL ), Target( : Target ), Show Limits( 1 )}
);
```

thanks!

Thanks, Adam

1 ACCEPTED SOLUTION

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Your example data table does not contain any columns named LSL or USL. Assuming they do exist, but are just missing from the display your code remains with a couple of problems. First, you are attempting to insert values into a list structure.

`{LSL( : LSL ) , USL( : USL ), Target( : Target ), Show Limits( 1 )}`

Because this is a list, it will not parse and evaluate itself.

The second item, is that, Spec Limits is a column property, and therefore, only 1 set of Spec Limits can be set for your column :Value. If you have a columns named :LSL, :Target and :USL, you will need to specify which row in the data table contains those limits. Below is one method that can be used to add the Spec Limits. In the code, I am assuming there are columns of :USL, :Target and :USL, and that row 5 contains the values you want to use.

```
Eval(
Substitute(
Expr(
:value << set property(
"spec limits",
{LSL( __LSL__ ), USL( __USL__ ), Target( __Target__ ), Show Limits( 1 )}
)
),
Expr( __LSL__ ), :LSL[5],
Expr( __USL__ ), :USL[5],
Expr( __Target__ ), :Target[5]
)
);
```

Jim

9 REPLIES 9

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Your example data table does not contain any columns named LSL or USL. Assuming they do exist, but are just missing from the display your code remains with a couple of problems. First, you are attempting to insert values into a list structure.

`{LSL( : LSL ) , USL( : USL ), Target( : Target ), Show Limits( 1 )}`

Because this is a list, it will not parse and evaluate itself.

The second item, is that, Spec Limits is a column property, and therefore, only 1 set of Spec Limits can be set for your column :Value. If you have a columns named :LSL, :Target and :USL, you will need to specify which row in the data table contains those limits. Below is one method that can be used to add the Spec Limits. In the code, I am assuming there are columns of :USL, :Target and :USL, and that row 5 contains the values you want to use.

```
Eval(
Substitute(
Expr(
:value << set property(
"spec limits",
{LSL( __LSL__ ), USL( __USL__ ), Target( __Target__ ), Show Limits( 1 )}
)
),
Expr( __LSL__ ), :LSL[5],
Expr( __USL__ ), :USL[5],
Expr( __Target__ ), :Target[5]
)
);
```

Jim

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Re: assigned spec limits from limits column

Hi,

Thanks for the solution for the original question.

I have another question regarding the same issue/example.

Can I create a smart column property or trend chart property so that when I create a trend chart using jsl the limits will be included.

I think there need to be something because I have value and limits in every row.

Thanks for the solution for the original question.

I have another question regarding the same issue/example.

Can I create a smart column property or trend chart property so that when I create a trend chart using jsl the limits will be included.

I think there need to be something because I have value and limits in every row.

Thanks, Adam

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Re: assigned spec limits from limits column

Show Limits(1) - I was searching around the scripting guide yesterday on how do this to a bunch of columns. Thanks!

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Re: assigned spec limits from limits column

Not working for me,

Did you mean as in the example?

```
biv=Bivariate(
Y( :VALUE ),
X( :DATE ),
By(
:TEST
)
);
biv << Show Limits(1);
```

Thanks, Adam

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Re: assigned spec limits from limits column

Adam:

My application was to be able to toggle the 'Show as graph reference lines' for Spec Limits. After doing Process Capability, loading spec limits from a table, then saving them to columm property I noticed that none of the columns had the 'Show as graph reference lines' checked. For 55 columns I did not want to do this manually (but I did - I searched the documentation but could find out how to do this). Now I have JSL that can do it. Change the (1) to a (0) to toggle. You want to see the Spec Limit lines for some plots, but not others.

Names Default To Here( 1 );

dt = Current Data Table();

mycols = dt << Get Column Names( string );

For( i = 2, i <= N Items( mycols ), i++,

Column( i ) << Set Property( "Spec Limits", {Show Limits(1)} );

);

So, this JSL will toggle the Show Limits(), but it will wipe out the LSL(), Target(), USL() assigned to the column.

Does anyone out there have a way to only toggle the Show Limits()?

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Re: assigned spec limits from limits column

Here is a simple script that will set the Show Limits without deleting the already set limits

```
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\Semiconductor Capability.jmp" );
mycols = dt << Get Column Names( numeric, string );
For( i = 1, i <= N Items( mycols ), i++,
spec = Column( dt, mycols[i] ) << Get Property( "Spec Limits" );
If( Is Empty( spec ) == 0,
LSL = Try( spec["LSL"], . );
USL = Try( spec["USL"], . );
Target = Try( spec["Target"], . );
Eval(
Substitute(
Expr(
Column( dt, mycols[i] ) <<
Set Property(
"Spec Limits",
{LSL( __LSL__ ), USL( __USL__ ),
Target( __Target__ ), Show Limits( 1 )}
),
),
Expr( __LSL__ ), LSL,
Expr( __USL__ ), USL,
Expr( __Target__ ), Target
)
);
);
);
```

Jim

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Re: assigned spec limits from limits column

Jim:

Thanks! I now owe you two beers :).

One of these days I will have to confromt my fear of Eval / Expr / Substitute

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Re: assigned spec limits from limits column

1 Single Malt Scotch == 2 Beers

Jim

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Re: assigned spec limits from limits column

Gladly! Ever had Ardbeg Uigeadail? Are you coming to Discovery 2018 in Cary?