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• Working with Local Variables

  Well now, let's take a quick look at local variables and using the local function. So I'm going to clear the contents of the Script Editor and I'm going to type local and open parentheses. And recall that the first argument is a list of the local variable names and I can either make the assignments in that list or that could be part of the JSL expression that is the second argument to t...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  1197 views | 0 replies

• Using Date and Time Functions

  So next, let's talk a little bit about date and time functions. I'm going to clear the contents of the Script Editor window. I'd like to clear the log as well. And I do that by right clicking in the Log window and selecting Clear Log. So remember that dates and times are stored as the number of seconds since midnight January And you can store those in a variable. And we can also use dat...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  2204 views | 0 replies

• Using the Log

  So we've been making use of the log to look at the results of all of the lines of code that we've run. But we can also control what shows up in the log. So let me clear that and clear the Script Editor window. So one thing I could do, if I am working with global variables, which, of course, I have been, is I can type show globals open close parentheses. I don't have to have an argument,...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  1933 views | 0 replies

• Objects and Messages

  Now let's discuss the concept of objects. Many of the capabilities of JMP are available to your script through built-in objects. Every JMP object knows how to perform certain actions or tasks. And some examples of JMP objects are data tables, data columns, platforms, and even JMP itself. Now in order to use an object in your script, the script first needs to instantiate the object, or c...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  813 views | 0 replies

• Introduction to Lists

  An important data structure in JMP is a list, which is a general-purpose storage container that can store any number of items. The items can be any type of data such as numbers, character strings, object references, or other lists, and the items in the list don't need to be the same type. You can create a list with the List function, or with the curly brackets operator. Items in a list ...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  2722 views | 0 replies

• Working with Lists

  Lists are dynamic. You can easily add items to or remove items from a list as necessary. You use the Insert function or the Insert Into function to add items to a list. By default, the items are added at the end of the list. Optionally, you can include an argument to specify the position of the item you're adding. The Insert function returns a new list with the added item but doesn't ch...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  2191 views | 0 replies

• Introduction to Matrices

  Another useful data structure is a matrix, which is a rectangular array or table of numeric values or missing values. You can use a matrix to store a single number, a column of numbers, (sometimes called a column vector,) a row of numbers, (or row vector,) or an entire table of numbers. A matrix can be empty -- that is, have no rows or columns. An empty matrix can be useful for collecti...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  644 views | 0 replies

• Working with Matrices

  You can use the Matrix function to create a matrix. And this function takes a list of lists as its argument, where each sub-list specifies a row. You can also use the square brackets operator to create a matrix. When you use this operator, you enter the values directly, without using lists. Instead, you separate the values in different rows with commas, and the values in different colum...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  1505 views | 0 replies

• Using Lists and Matrices

  So this demonstration is going to look at some of the basic features of lists and matrices. So I'm going to start with lists. And I'm going to get a new script editor window. So again, the keyboard shortcut is Ctrl+T. And I will resize and rearrange that. Let me go ahead and bring the log in front of the journal. And I'm going to create a variable I'll call my list. And I'll assign that...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  4515 views | 2 replies

• Style Tips for Scripts

  So, although your scripts follow a strict syntax, there's no strict style imposed by JMP in the scripting language. Remember that JMP ignores whitespaces and letter case. So, style, then, is important for legibility. Let's take a look at an example. The script shown here follows the syntax rules and will run correctly. But the style -- or lack of style -- make it difficult to read and u...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:23 AM

  799 views | 0 replies

• Overview of Iteration

  Scripts are procedural. In other words, JMP evaluates a script beginning with the first line and continuing until the last line. Some scripts require JMP to repeat an action multiple times. But you don't repeat the code for that action in your script for every time you want JMP to perform the action. Instead, you use special iteration functions to repeat that portion of the code. In som...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  809 views | 0 replies

• Using the For Function

  So, the For function provides the most general form of iteration. This function has four required arguments, and each one is a JSL expression. And as usual, these four arguments are separated by commas. JMP evaluates the first argument to the For function only once. Generally, you use this first argument to initialize a variable that you can use as a counter, or index, in each iteration...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  1519 views | 0 replies

• Using the While Function

  Another way to iterate is with the While function. This function takes only two arguments: the test, and the body. So, if you want to use a counter, index, or flag variable in either argument, you need to initialize those before you call the While function. JMP evaluates the first argument and interprets it as a Boolean result in order to determine if the iteration should continue. If t...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  1048 views | 0 replies

• Working with Expressions

  Expressions are an important concept, and an integral part of the JMP scripting language. But what is an expression? Well, it's a section of JSL code that accomplishes a task. JSL expressions hold data, manipulate data, and send commands to objects. An expression can be defined as any combination of variables, constants, and functions or operators that can be evaluated. It might be as s...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  2014 views | 0 replies

• Debugging and Profiling Your Script

  So, the Script Editor is a really powerful tool for both reading and writing your scripts. You can also evaluate just one line of code or a selection of code to verify the behavior as you develop your script. And you can hover over a variable name to determine its current contents. You can also use the JMP Log to examine the results of evaluation or any error messages. The Debugger is a...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  1157 views | 0 replies

• Iteration in Scripts

  So this demonstration illustrates how to use the For function for iteration. And so far, we've used the Script Editor with the log to test our scripts and observe the results. But now we want to look at that using the debugger. So I have a script editor window open, and I'm going to start by typing Names Default to Here. And I'll put that Boolean I'm not adding spaces right now. I'm goi...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  2138 views | 0 replies

• Using Row Functions

  So, you learned about the For function, which you can use for practically any kind of iteration. There's also a special function for iterating down the rows of the data table, and that's the For Each Row function. This function only requires one argument, which is the body or code that you want JMP to evaluate row-wise. For Each Row iterates down the rows of the data table until it come...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  1700 views | 0 replies

• Using the Summation Function

  One special case of iteration is the algebraic sum. The Summation function requires three arguments. The first argument is evaluated before the summation begins. It's generally used to initialize a counter or index variable. The second argument specifies a limit for the counter or index. And the third argument is the quantity to be added to the sum. For example, calling the Summation fu...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  995 views | 0 replies

• Using the Product Function

  Another special case of iteration is the algebraic product. The Product function is similar to the Summation function, and also requires three arguments. The first argument is evaluated before the multiplication begins, and is generally used to initialize a counter or index variable. The second argument specifies a limit for the counter or index. And the third argument is the quantity t...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  507 views | 0 replies

• Iterating Across Rows

  In this demonstration, we'll see how to iterate across rows using the for each row function. So I'm going to get the Big Class data from the script in section And I'm going to write a script that's going to create a new column with the BMI, or Body Mass Index, values. And I'll use the for each row function to populate that. And the body mass index is calculated by multiplying the weight...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  1058 views | 0 replies

• What Is Conditional Action?

  Remember, scripts are procedural. JMP begins by evaluating the first line and continues through until it ends with the last line. This kind of evaluation makes sense for the parts of your script that always have to be evaluated. This evaluation is unconditional. But some parts of your script should only be evaluated under specific cases. This evaluation is conditional. And your script h...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  583 views | 0 replies

• Using the If Action

  The most general way to test conditions is to use the If function. Let's take a look at it in the context of iterating down the rows of a data table to populate a column called "grade" using the For Each Row function. In fact, we'll look at each of the conditional functions in the context of the For Each Row function. Now, the number of arguments for the If function varies, but at least...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  3111 views | 0 replies

• Example: Binning Data by Using the If Function

  So let's look at an example of using the If function. Suppose you have data from a public school in the US with grade levels for each student. Some grade levels are grouped into schools, and you want to use the numeric data to group the students by school. This is an example of binning data, where the bins represent ranges of values, and the If statement is an easy way to assign the dif...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  511 views | 0 replies

• Using Boolean Functions

  In this demonstration, we'll take a look at Boolean functions, as well as the If function I'm going to get a script editor window. And again, the keyboard shortcut is Ctrl+T or you can go to the File menu, use the toolbar. Many different ways to get that new Script Editor window. And let me bring the log in front of the journal. Back in the Script Editor window, I'm going to type the co...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  2185 views | 0 replies

• Using the Match Function and the Choose Function

  It's common to have conditions that are limited to specific values, and these values could be numeric or character data. You can use the Match function in this situation. The Match function is a specialized conditional function that takes three or more arguments. The first argument is evaluated and used as the value to be matched. The second argument is evaluated and interpreted as a Bo...

  ruthhummel

  Learning Library |

  Apr 8, 2025 6:22 AM

  3022 views | 0 replies