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- How to do boxplot if both x and y are quantitative variable?

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Nov 17, 2014 10:53 AM
(3463 views)

Hi

I am new in JMP, and it may be a simple question. I would like to do a boxplot (instead of a scatter plot) with id(y) vs Length(x) (both are quantitative variable). Somehow I can only choose boxplot when X(length) is categorical variable, I can't find example in help when x is quantitative variable.

Thanks in advance for help.

Kelvin

1 ACCEPTED SOLUTION

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It's possible to do this in Graph Builder, in JMP 10 and JMP 11. What version of JMP are you using?

I created a simple table with an X and Y column, where both were quantitative (=continuous) variables. I was able to click on the boxplot icon to create a boxplot no problem.

Try copying and pasting the following code into a script window, and then hit CTRL-R to run it.

New Table**(** "Demo Box Plot",

Add Rows**(** **13** **)**,

New Script**(**

"Graph Builder",

Graph Builder**(**

Show Control Panel**(** **0** **)**,

Variables**(** X**(** :x **)**, Y**(** :Column 2 **)** **)**,

Elements**(**

Box Plot**(**

X, Y, Legend**(** **3** **)**, Jitter**(** **1** **)**,

Outliers**(** **1** **)**, Box Style**(** "Outlier" **)**

**)**

**)**

**)**

**)**,

New Column**(** "x", Numeric, Continuous,

Format**(** "Best", **12** **)**,

Set Values**(** **[****1**, **1**, **1**, **2**, **2**, **2**, **3**, **3**, **3**, **3**, **3**, **4**, **4]** **)**

**)**,

New Column**(** "Column 2", Numeric,

Continuous, Format**(** "Best", **12** **)**,

Set Values**(** **[****20.1**, **20.3**, **18**, **15**, **17**, **34**, **65**, **45**, **34**, **54**, **34**, **12**, **24]** **)**

**)**

**);**

3 REPLIES

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It's possible to do this in Graph Builder, in JMP 10 and JMP 11. What version of JMP are you using?

I created a simple table with an X and Y column, where both were quantitative (=continuous) variables. I was able to click on the boxplot icon to create a boxplot no problem.

Try copying and pasting the following code into a script window, and then hit CTRL-R to run it.

New Table**(** "Demo Box Plot",

Add Rows**(** **13** **)**,

New Script**(**

"Graph Builder",

Graph Builder**(**

Show Control Panel**(** **0** **)**,

Variables**(** X**(** :x **)**, Y**(** :Column 2 **)** **)**,

Elements**(**

Box Plot**(**

X, Y, Legend**(** **3** **)**, Jitter**(** **1** **)**,

Outliers**(** **1** **)**, Box Style**(** "Outlier" **)**

**)**

**)**

**)**

**)**,

New Column**(** "x", Numeric, Continuous,

Format**(** "Best", **12** **)**,

Set Values**(** **[****1**, **1**, **1**, **2**, **2**, **2**, **3**, **3**, **3**, **3**, **3**, **4**, **4]** **)**

**)**,

New Column**(** "Column 2", Numeric,

Continuous, Format**(** "Best", **12** **)**,

Set Values**(** **[****20.1**, **20.3**, **18**, **15**, **17**, **34**, **65**, **45**, **34**, **54**, **34**, **12**, **24]** **)**

**)**

**);**

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Yes, It works. Thank you.

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Another way to do this: Suppose your X values are no integers. You can set up a nominal/categorical X variable by defining ranges of the X variable. For example, let x = 0 - 5 be A, x = 5.1 - 10 = B, x = 10.1 -15 =15, etc. Then you can do boxplots very nicely.

Steve