- published: 26 Feb 2013
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Learn how to recode variables and compute and index variable using SPSS.
Download file: https://people.highline.edu/mgirvin/ExcelIsFun.htm 1. See how to do a three way lookup when there are two row header variables (criteria) and one column header (criteria) variable using INDEX and MATCH functions for a normal two way lookup, but with the two row headers joined to create a single row header criteria. In essence, three way lookup is turned into a standard two way lookup. Also see IFERROR function.
Learn how to draw patterns such as a maze or vortex with NCLab Turtle, using for loops and modifying the counting or index variables. Set beginning and ending values for the index, write operations on the index within the body of the for loop. TURTLE CODING COURSE: LEARN PROGRAMMING THROUGH ART The Turtle Coding course is an excellent visual introduction to Python programming. Students create beautiful objects including pendants, mosaics, ornaments, cookie cutters, round containers, vases and even chess figures. Their creations can be printed on 3D printers and cut out of wood or plastic on laser cutters. While writing programs for the Turtle, students become proficient in using variables, loops and functions as well as in Python code syntax, formatting and debugging. The course require...
Introduction to optimal control within a course on "Optimal and Robust Control" (B3M35ORR, BE3M35ORR) given at Faculty of Electrical Engineering, Czech Technical University in Prague. Motivation for optimal control; formulation of optimal control criterion (aka cost function, performance index); identification of optimization variables (either controller parameters or control signals).
Very often students who have questionnaire data ask me whether they can add together some similar variables to create a new variable that summarizes the meaning of all the questions that go into it, for example if you have a load of questions about the service of an airline, the sum of those questions gives a new variable that may be interpreted as airline satisfaction score. The answers is YES (that new variable is called a score/index), but there are things to watch out for. Keywords: index, composite score, attribute, trait, items, unit weighted scores, weighted scores, reliability, MEAN().
Dr. Steve Garrity's virtual seminar "Canopy 101: Leaf Area Index - Theory, Measurement, Application" discusses the different methods available for measuring LAI. The theory, advantages, and disadvantages of each method will be covered. Leaf Area Index (LAI) is one of the most widely measured variables used to describe plant canopies. The traditional approach to measuring LAI required destructive harvesting and measurement of every leaf within a given area of plant canopy. Fortunately, advances in theory and sensor technology have provided several alternative methods for rapidly and non-destructively estimating LAI. Visit http://www.decagon.com/ for more information on Decagon's products, service, and education.
When you need to find and extract a column of data from one table and place it in another, use the VLOOKUP function. This function works in any version of Excel in Windows and Mac, and also in Google Sheets. It allows you to find data in one table using some identifier it has in common with another table. The two tables can be on different sheets or even on different workbooks. There is also an HLOOKUP function, which does the same thing, but with data arranged horizontally, across rows. See the companion tutorial on Tuts+ at https://computers.tutsplus.com/tutorials/how-to-extract-data-from-a-spreadsheet-using-vlookup-match-and-index--cms-20641. By Bob Flisser.
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match and index tutorial. These 2 functions are very often used together in place of vlookup. This example looks up IRS witholding for (1) wages, (2) marital status, and (3) number of deductions. 2 and 3 are combined in a single table (M2, S0, S3, etc.)
This video describes how to standardize variables (converting variables into z-scores based on a standard normal distribution) and how to create an index score from variables on different scales (3:27). This video includes a brief reminder of how to read the exponential notation sometimes used by R (at 4:30).
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★☆★ ENROLL IN CLEVER PROGRAMMER http://cleverprogrammer.to/enroll Unit 1: PYTHON SYNTAX ====================================== 0:00 -- 1. Welcome! 2:15 -- 2. Variables 2:53 -- 3. Booleans 3:39 -- 4. You've Been Reassigned! 3:53 -- 5. Whitespace 4:42 -- 6. Whitespace Means Right Space 4:53 -- 7. Matter of Interpretation 5:36 -- 8. Single Line Comments 6:55 -- 9. Multi-Line Comments 7:20 -- 10. Math 8:58 -- 11. Exponentiation 9:50 -- 12. Modulo 11:52 -- 13. Bringing it All Together Lesson 2: Tip Calculator 14:55 -- 1. The Meal 16:06 -- 2. The Tax 16:35 -- 3. The Tip 19:19 -- 4. Reassign in a Single Line 20:37 -- 5. The Total ====================================== Unit 2: STRINGS AND CONSOLE OUTPUT ====================================== LESSON 1: Strings & Console Output 22:05 -- 1. ...
Big crossover topic from Algebra 1 to Algebra 2, on exponents. Here we multiply exponents, divide exponents, and raise them to powers. I hope this video can improve your abilities, exponentially! YAY MATH! Please visit yaymath.org Videos copyright © Yay Math For all videos, free quizzes, worksheets, Yay Math's book on inspired education, and entire courses you can download, please visit yaymath.org
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(Index: https://www.stat.auckland.ac.nz/~wild/wildaboutstatistics/ ) Plotting numeric variables shows us interesting characteristics of our data. In this video we’ll explore pulse rates and household incomes and learn how to describe what we see. After you’ve watched this video, you should be able to answer these questions How is a stacked dot plot constructed? What are the four types of things we look for in dot plots? What is the common name for the mean? How does the mean relate to the dot plot? What property defines the median? When do the mean and median tend to be very similar, and when can they be quite different? Why might we prefer the median to the mean for personal incomes?
Introduction to exponent rules Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/e/exponent_rules?utm_source=YTdescription&utm_medium=YTdescription&utm_campaign=YTdescription Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/exponent-properties/v/exponent-rules-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/pre-algebra/exponents-radicals/cube-root-tutorial/v/simplifying-radical-expressions1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airpl...