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- Can you "do math" in a data table?

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Jan 6, 2016 12:17 PM
(7434 views)

So far, I haven't found anything in the tutorials that tells me I can, but I thought I'd ask anyway.

If I have imported a csv file into a data table, can I add the values of cells together, or set a cell equal to another cell like I can with excel?

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natalie_,

The answer is yes. JMP has many functions that you can invoke for summing rows, columns, etc. It is is little different if you want to, for example, add cells that are in different rows but it still can be done. In the simple example below, I created Column 1 as a list 1 through 9.

Then I used one of the many built-in functions available in the Formula Editor to square Column 1.

You can add, subtract disparate cells in JMP but it's a little different than Excel. I add the first rows of Column 1 and Column 2 in the Sum Column by typing directing in the JMP file: =:Column1 + :Column 2 (i.e, 1+1=2). To demonstrate addition of non contiguous cells I typed in Row 3 of the Sum column the following formula: =Column 1[2] + :Column 2[4]. This last example adds the element in the second row in the Column 1 to the fourth element of Column 2.

Hope this helps. There are many ways to 'do math' in JMP.

Dave

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JMP data tables are more structured than a spreadsheet. Each row is assumed to be independent of every other row. So, formulas (math) are applied to an entire column, not an individual cell.

You create a formula column using the Formula Editor.

-Jeff

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natalie_,

The answer is yes. JMP has many functions that you can invoke for summing rows, columns, etc. It is is little different if you want to, for example, add cells that are in different rows but it still can be done. In the simple example below, I created Column 1 as a list 1 through 9.

Then I used one of the many built-in functions available in the Formula Editor to square Column 1.

You can add, subtract disparate cells in JMP but it's a little different than Excel. I add the first rows of Column 1 and Column 2 in the Sum Column by typing directing in the JMP file: =:Column1 + :Column 2 (i.e, 1+1=2). To demonstrate addition of non contiguous cells I typed in Row 3 of the Sum column the following formula: =Column 1[2] + :Column 2[4]. This last example adds the element in the second row in the Column 1 to the fourth element of Column 2.

Hope this helps. There are many ways to 'do math' in JMP.

Dave

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Thank you very much! I had figured out how to multiply an entire column, but I couldn't figure out how to add non contiguous cells. Great examples too, btw!

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You're welcome. There are seemingly endless ways to do things in JMP. jeff.perkinson's post is a great place to get more familiar with the Formula Editor. Another option is to do manipulations in JSL the script language.

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Can you pls share how you were able to multiply different rows of a column?

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JMP data tables are more structured than a spreadsheet. Each row is assumed to be independent of every other row. So, formulas (math) are applied to an entire column, not an individual cell.

You create a formula column using the Formula Editor.

-Jeff