If you use Excel to model businesses, business processes, or business transactions, this course will change your life. You’ll learn how to create tools for yourself that will amaze even you. Unrestricted use of this material is available in two ways.
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Approaches to modeling temporal response | 4/7 Session Links |
There are two basic approaches to implementing convolution. Most people implement it using explicit cell references, not even realizing that what they’re doing is convolution. It’s laborious, fraught with opportunity for error, and difficult to maintain. But in the demonstrations, we’ll show you how it’s done, and perhaps you’ll recognize in it something similar that you’ve done in the past.
The second approach is to use a macro we provide called Convolve. By comparison to the method of explicit cell references, it’s much easier to implement. It executes more slowly, but the most important advantage is that it’s easier to understand, once you understand convolution itself.
By making the investment of understanding convolution, and the investment of learning how to use the macro, you make it easier to deal with all modeling situations that meet the conditions of the previous page.
Last Modified: Wednesday, 27-Apr-2016 04:15:26 EDT
The space character, in many cases, doesn’t change the value of a formula. For instance, these two formulas return the same value:
Some people think that well-placed spaces make formulas easier to read. Although that might be true, the practice is both inconvenient and extremely dangerous. More
Excel’s online help, and many of the how-to books you can buy, provide long lists of keystroke shortcuts for carrying out specific operations, such as inserting rows, selecting regions, or deleting columns. And they are useful.
But the true power of the keyboard comes not from using these particular commands. Rather, it comes from learning combinations that are useful for particular situations that you encounter frequently.
For instance, there’s no command for deleting the rows that contain the selected cells, but there is a combination:
And so, Shift+Space Ctrl+- deletes the rows containing the selection.
Learning a vast array of keystroke commands is probably less useful than learning the keystroke combinations that do exactly what you need to do most often.