Excel’s Lookup Functions and Approximate Matching

Excel has 4 functions that allow us to find a value in a column or row, and return a value from a corresponding column or row. The lookup functions can be very useful and are easy to understand when they provide an exact match for a search item. In addition to exact matches, the functions [...]

By |2021-04-20T17:45:07-06:00April 20th, 2021|Approximate match, Excel, Lookup|0 Comments

Ranges in Excel

Functions in Excel can work with multiple cells by providing ranges as input parameters. The Excel documentation will refer to these ranges as either "vector" or "array" ranges. A range is specified by a beginning cell address, a colon, followed by the final cell address. A valid range in Excel looks like: D4:D10, which includes [...]

By |2021-04-14T17:39:44-06:00April 14th, 2021|Excel|0 Comments

A Few Words About the Pearson’s Correlation Coefficient.

“Politicians use statistics in the same way that a drunk uses lamp-posts for support rather than illumination” -A. Lang Statistics is a very complex subject and because of its complexity statistics and its terms are frequently misunderstood and misused. I came across an excellent article on The datapine Blog about how statistics can be misleading.  [...]

By |2021-03-26T17:45:50-06:00March 26th, 2021|Correlations, Excel, Statistics|0 Comments

A Simple Model of Covid-19 Data With Excel

We currently (as of Jan, 2021) have large amounts of data concerning the Covid-19 pandemic available. We have daily updates through various news outlets and we can download data from different country's public data websites. Aggregated data is available for viewing at Worldometers coronavirus page, and for download at Our World in Data's Covid-19 data [...]

By |2021-02-11T17:12:54-07:00February 8th, 2021|Excel, Exponential trendline, Trendline|0 Comments

Excel: Conditional Formatting – Color Scales

This is another in a series of Excel’s Conditional Formatting How-To's. The pervious post looked at the Highlight Cell Rules option. (For Details See: Excel Conditional Formatting Highlight Cell Rules). In this article we are going to look at another option namely: Color Scales. Using Color Scales is a popular formatting technique that lends itself [...]

By |2021-02-16T17:23:37-07:00January 6th, 2021|Excel, Tutorials and How-Tos|0 Comments

How to use the Correlation Command

Once the Data Analysis toolbox has been enabled, the correlation function is ready to use. For this example, we are going to use data from two stock market indexes: NASDAQ Composite Index and the Dow Jones Industrial Average (https://ca.finance.yahoo.com/quote/ONEQ/history?p=ONEQ and https://ca.finance.yahoo.com/quote/DIA/history?p=DIA) . The data is the daily closing price for the last 6 months of [...]

By |2021-02-17T00:05:15-07:00December 30th, 2020|Correlations, Excel, Tutorials and How-Tos|0 Comments
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