- published: 26 Feb 2013
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An index is an indirect shortcut derived from and pointing into a greater volume of values, data, information or knowledge. Index may refer to:
Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.
The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.
In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.
Microsoft Excel is a spreadsheet developed by Microsoft for Windows, Mac OS X, and iOS. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. It has been a very widely applied spreadsheet for these platforms, especially since version 5 in 1993, and it has replaced Lotus 1-2-3 as the industry standard for spreadsheets. Excel forms part of Microsoft Office.
Microsoft Excel has the basic features of all spreadsheets, using a grid of cells arranged in numbered rows and letter-named columns to organize data manipulations like arithmetic operations. It has a battery of supplied functions to answer statistical, engineering and financial needs. In addition, it can display data as line graphs, histograms and charts, and with a very limited three-dimensional graphical display. It allows sectioning of data to view its dependencies on various factors for different perspectives (using pivot tables and the scenario manager). It has a programming aspect, Visual Basic for Applications, allowing the user to employ a wide variety of numerical methods, for example, for solving differential equations of mathematical physics, and then reporting the results back to the spreadsheet. It also has a variety of interactive features allowing user interfaces that can completely hide the spreadsheet from the user, so the spreadsheet presents itself as a so-called application, or decision support system (DSS), via a custom-designed user interface, for example, a stock analyzer, or in general, as a design tool that asks the user questions and provides answers and reports. In a more elaborate realization, an Excel application can automatically poll external databases and measuring instruments using an update schedule, analyze the results, make a Word report or PowerPoint slide show, and e-mail these presentations on a regular basis to a list of participants.
A differential equation is a mathematical equation that relates some function with its derivatives. In applications, the functions usually represent physical quantities, the derivatives represent their rates of change, and the equation defines a relationship between the two. Because such relations are extremely common, differential equations play a prominent role in many disciplines including engineering, physics, economics, and biology.
In pure mathematics, differential equations are studied from several different perspectives, mostly concerned with their solutions—the set of functions that satisfy the equation. Only the simplest differential equations are solvable by explicit formulas; however, some properties of solutions of a given differential equation may be determined without finding their exact form.
If a self-contained formula for the solution is not available, the solution may be numerically approximated using computers. The theory of dynamical systems puts emphasis on qualitative analysis of systems described by differential equations, while many numerical methods have been developed to determine solutions with a given degree of accuracy.
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...
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.)
Let's go on a journey and learn about indexes and scales as a way of measurement in research!
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).
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
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...
Check out our brand-new Excel Statistics Text: https://www.amazon.com/dp/B076FNTZCV This video illustrates how to calculate a correlation in Excel on three variables using the Data Analysis Toolpak. YouTube Channel: https://www.youtube.com/user/statisticsinstructor Correlation in Excel Data Analysis ToolPak Pearson Correlation in Microsoft Excel Video Transcript: In this video I want to take a look at how to calculate the correlation coefficient in Microsoft Excel when I have more than two variables. So in this example I have SAT score, social support and this was recorded in college, and then college GPA. So we have three variables and what I want to do is get the correlation between all pairs of variables. So the correlation of SAT with social support, the correlation of SAT with co...
Learn Excel online https://www.udemy.com/excel-2010-superhero-course/?couponCode=Excel2010YouTube Lookup data using multiple conditions in Excel. Use the Index and Match functions in an array formula to lookup data using multiple conditions. VISIT COMPUTERGAGA FOR LOTS MORE TIPS http://www.computergaga.com CONNECT WITH US! Google+ ► https://plus.google.com/+Computergaga Facebook ► http://www.facebook.com/computergaga Twitter ► http://www.twitter.com/computergaga1
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().
Go to http://www.examsolutions.co.uk to see the full index, playlists and more videos on differential equations, calculus and other maths topics
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).
Determining the efficiency of a number of variables in their ability to measure a single construct. Link to Monte Carlo calculator: http://www.allenandunwin.com/spss4/further_resources.html Download the file titled MonteCarloPA.zip.
get - PHP $_GET Variable php - How to set $_GET variable PHP - easiest way to get $_GET parameters string as written PHP: $_GET php $_request php $_get array php $_get example php isset php $_get undefined index php $_get not working php $_get multiple values php $_get empty Verwandte Suchanfragen zu php $_GET php $_get auslesen php get url php $_get array php $_get undefined index php $_get empty php $_get page php $_get leer php $_get absichern
Go to http://www.examsolutions.co.uk to see the full index, playlists and more maths videos on differential equations and other maths topics
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.)
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
From my expressions series produced way back in 2007! This lesson goes into understanding the use of arrays and variables in expressions, which is critical to writing useful expressions.
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.
For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=5 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors ---------------------------------------------------------------------------------------- A variable is nothing but a name given to a storage area that our programs can manipulate. Each variable in PL/SQL has a specific data type, which determines the size and layout of the variable's memory; the range of values that can be stored within that memory and the set of operations that can be applied to the variable. The name of a PL/SQL variable consists of a letter optionally followed by more letters, n...
Using multiple numeric predictor variables to predict a single categorical outcome variable.
★☆★ 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. ...
In this lecture, Dr. Lori Peek discusses sociological theories of disaster and vulnerability. She highlights the variables that characterize vulnerability to the impacts of disasters, and notes that much research on vulnerable populations does not focus on the social systems and power relations that exacerbate risk. She then discusses the pressure and release model to characterize the temporal impacts of disasters. She uses the example of a project on the Gulf Coast that looks at the impacts of oil spills on youth health, and she explains the range of methodological approaches used to measure these impacts. Finally, she discusses how she and collaborators have built on vulnerability research to create curricula for high school students to engage in disaster recovery. More information on t...
In this Arduino tutorial we look at Sketch structure, variables and procedures. --------------------- Click "Show more" ------------------------------- My website and forum:- http://www.mjlorton.com Donations and contributions:- http://www.mjlorton.com My techie channel MJLorton - Solar Power and Electronic Measurement Equipment - http://www.youtube.com/MJLorton My Techie Amazon Store: http://astore.amazon.com/m0711-20 My other channel VBlogMag - For almost any topic under the sun! - http://www.youtube.com/VBlogMag My VBlogMag Amazon Store: http://astore.amazon.com/vblogmag-20 ----------------------------------------------------------------------- HobbyTronics - South Africa's electronic components supplier for your electronics hobby needs. Specialist supplier of electronic components ...
In this tutorial I explain how to use Photoshop's Variables tools to quickly and easily import text and image, then to export different .psd files. For a text version of this tutorial, go to http://benoitlussier.com/en/tutorials/photoshop/batch_data_import.html Time Index Final result - 0:30 How does it work? - 2:05 Preparing the data to be imported in Photoshop - 2:25 Preparing the data: Importing a single text variable - 3:35 Preparing the data: Cleaning up the .csv - 4:40 Preparing the data: Importing multiple text variables - 6:45 Preparing the data: Preparing the images to import - 11:20 Preparing the data: Creating the .csv to import a single image variable - 13:12 Preparing the data: Creating the .csv to import multiple image variables - 14:40 Preparing the data: Creating the .csv...
Determining the efficiency of a number of variables in their ability to measure a single construct. Link to Monte Carlo calculator: http://www.allenandunwin.com/spss4/further_resources.html Download the file titled MonteCarloPA.zip.
Tutorial on memory, the binary and hexadecimal number systems, and organization of variables in C++. Tutorial 1 wiki page: http://wiki.planetchili.net/index.php?title=Intermediate_C%2B%2B_Game_Programming_Tutorial_1 Bonus Video - Red Pill [The Stack] https://youtu.be/Cjx5C2I3UrA Check out my Patreon! https://www.patreon.com/planetchili Website: http://www.planetchili.net Twitter: https://twitter.com/planetchili End slate theme: We're all under the starsby Eric Skiff http://ericskiff.com/music/ End slate animation: "Amitai Angor AA VFX" https://www.youtube.com/dvdangor2011
Python DataType : List : Lists are a very useful variable type in Python. A list can contain a series of values. List variables are declared by using brackets [ ] following the variable name. X = [ ] # This is a blank list variable Y = [1, 25, 45, 67] # this list creates an initial list of 4 numbers. Z = [1, 4, ‘sada’] # lists can contain different variable types. All lists in Python are zero-based indexed. When referencing a member or the length of a list the number of list elements is always the number shown plus one. mylist = [‘SadaLearningHub', ‘YouTube', ‘Channel', ‘Sadasivarao'] B = len(mylist) # This will return the length of the list which is 3. The index is 0, 1, 2, 3. print mylist[1] # This will return the value at index 1, which is 'Grasshopper' print mylist[0:2] # This wi...
automatically calculate IRS withholding by knowing 3 things (wages, marital status, & number of deductions) Uses 2 VLOOKUP functions nested inside of an IF function. It reads "If Single, then lookup here, otherwise lookup there." This technique is useful in many applications. Also see video "match and index tutorial"
Download File: https://people.highline.edu/mgirvin/AllClasses/210Excel2013/Ch00/Excel2013StatisticsChapter00.xlsx All Excel Files for All Video files: http://people.highline.edu/mgirvin/excelisfun.htm. Intro To Excel: Store Raw Data, Data Types, Data Analysis, Formulas, PivotTables, Charts, Keyboards, Number Formatting, Data Analysis & More: (00:08) Introduction to class (00:49) Cells, Worksheets, Workbooks, File Names (02:54) Navigating Worksheets & Workbook (03:58) Navigation Keys (04:15) Keyboard move Active Sheet (05:40) Ribbon Tabs (06:25) Add buttons to Quick Access Tool Bar (07:40) What Excel does: Store Raw Data, Make Calculations, Data Analysis & Charting (08:55) Introduction to Data Analysis (10:37) Data Types in Excel: Text, Numbers, Boolean, Errors, Empty Cells (11:16) Keyboard...
Basic introduction to correlation - how to interpret correlation coefficient, and how to chose the right type of correlation measure for your situation. 0:00 Introduction to bivariate correlation 2:20 Why does SPSS provide more than one measure for correlation? 3:26 Example 1: Pearson correlation 7:54 Example 2: Spearman (rhp), Kendall's tau-b 15:26 Example 3: correlation matrix I could make this video real quick and just show you Pearson's correlation coefficient, which is commonly taught in a introductory stats course. However, the Pearson's correlation IS NOT always applicable as it depends on whether your data satisfies certain conditions. So to do correlation analysis, it's better I bring together all the types of measures of correlation given in SPSS in one presentation. Watc...
If you'd like to help fund Wise Owl's conversion of tea and biscuits into quality training videos you can click this link http://www.wiseowl.co.uk/donate?t=1 to make a donation. Thanks for watching! By Andrew Gould http://www.wiseowl.co.uk - This part of the Basic Programming in Visual C# series explains how to use variables - an integral part of any programming language. You'll learn how to declare a variable and choose its data type, how to assign values to and read from a variable and how to initialise a variable. You'll learn about working with different data types such as strings, numbers and dates and understand the importance of type-casting and converting data types. You can download both the initial and finished projects for this video here: http://www.wiseowl.co.uk/blog/s428/c...