Skip to content Skip to navigation

Connexions

You are here: Home » Content » Array Exercise VI

Navigation

Lenses

What is a lens?

Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

This content is ...

Affiliated with (What does "Affiliated with" mean?)

This content is either by members of the organizations listed or about topics related to the organizations listed. Click each link to see a list of all content affiliated with the organization.
  • NSF Partnership display tagshide tags

    This module is included inLens: NSF Partnership in Signal Processing
    By: Sidney Burrus

    Click the "NSF Partnership" link to see all content affiliated with them.

    Click the tag icon tag icon to display tags associated with this content.

  • National Instruments display tagshide tags

    This module is included in aLens by: National InstrumentsAs a part of collection: "LabVIEW Graphical Programming Course"

    Comments:

    "A full introductory course on programming with LabVIEW."

    Click the "National Instruments" link to see all content affiliated with them.

    Click the tag icon tag icon to display tags associated with this content.

Also in these lenses

  • Lens for Engineering

    This module is included inLens: Lens for Engineering
    By: Sidney BurrusAs a part of collection: "LabVIEW Graphical Programming Course"

    Click the "Lens for Engineering" link to see all content selected in this lens.

  • eScience, eResearch and Computational Problem Solving

    This module is included inLens: eScience, eResearch and Computational Problem Solving
    By: Jan E. OdegardAs a part of collection: "LabVIEW Graphical Programming Course"

    Click the "eScience, eResearch and Computational Problem Solving" link to see all content selected in this lens.

Recently Viewed

This feature requires Javascript to be enabled.

Tags

(What is a tag?)

These tags come from the endorsement, affiliation, and other lenses that include this content.
 

Array Exercise VI

Module by: National Instruments. E-mail the author

Summary: Create arrays and become familiar with the Array functions.

Exercise 1

Complete the following steps to build a VI that creates an array of random numbers, scales the resulting array, and takes a subset of that final array.

1.a) Front Panel

  1. Open a blank VI and build the front panel shown in Figure 1.
    Figure 1
    Figure 1 (arrex.png)
    1. Place an array, located on the Controls>>All Controls>>Array & Cluster palette, on the front panel.
    2. Label the array Random Array.
    3. Place a numeric indicator, located on the Controls>>Numeric Indicators palette, in the array shell.
    4. Use the Positioning tool to resize the array control to contain 1010 numeric indicators.
    5. Press the <Ctrl> key while you click and drag the Random Array control to create two copies of the control.
    6. Label the copies Final Array and Subset Array.
    7. Place three numeric controls, located on the Controls>>Numeric Controls palette, and label them Scaling Factor, Start Subset, and # of Elements.
    8. Right-click the Start Subset and # of Elements controls and select Representation>>I32 from the shortcut menu.
    9. Do not change the values of the front panel controls.

1.b) Block Diagram

  1. Build the block diagram shown in Figure 2.
    Figure 2
    Figure 2 (arrexbd.png)
    1. randnum.png Place the Random Number (0-1) function, located on the Functions>>Arithmetic & Comparison>>Express Numeric palette, on the block diagram. This function generates a random number between 00 and 11.
    2. forloop.png Place the For Loop, located on the Functions>>All Functions>>Structures palette, on the block diagram. The loop accumulates an array of 1010 random numbers at the output tunnel. Create a constant of 1010 for the count terminal.
    3. multiply.png Place the Multiply function, located on the Functions>>Arithmetic & Comparison>>Express Numeric palette, on the block diagram. In this exercise this function multiplies Random Array by Scaling Factor and returns Final Array.
    4. ArraySubset.png Place the Array Subset function, located on the Functions>>All Functions>>Array palette, on the block diagram. This function returns a portion of an array starting at Start Subset and containing # of Elements elements.
  2. Save the VI as Array Exercise.vi in the C:\Exercises\ LabVIEW Basics I directory.

1.c) Run the VI

  1. Display the front panel, change the values of the controls, and run the VI a few times. The For Loop runs for 1010 iterations. Each iteration generates a random number and stores it at the output tunnel. Random Array displays an array of 1010 random numbers. The VI multiplies each value in Random Array by Scaling Factor to create Final Array. The VI takes a subset of Final Array starting at Start Subset for # of Elements and displays the subset in Subset Array.
  2. Close the VI.

Content actions

Download module as:

PDF | EPUB (?)

What is an EPUB file?

EPUB is an electronic book format that can be read on a variety of mobile devices.

Downloading to a reading device

For detailed instructions on how to download this content's EPUB to your specific device, click the "(?)" link.

| More downloads ...

Add module to:

My Favorites (?)

'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

| A lens I own (?)

Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

| External bookmarks