Perform a Two Sample Test in Excel (paired t-test)

If you're testing a scenario that looks at a before and after situation AND wanted to know if there the result is based on random chance or NOT, you probably want to use a paired t test. Excel has some neat functions that give you the ability to do a paired or dependent t test easily. This video will show a quick way using the Data Analysis feature and then the various functions and formula to do it in a more manual (but challenging) way.

Google Sheets - Covert Columns or Rows into Comma Separated Values

Been in a situation where you had to convert values in columns or rows into comma separated values (csv)? Maybe you got a column of value and you needed to query it in another system, BUT that system needed the input values separated by commas (or semicolons). Using Google sheets, there are actually a couple of ways you can do this and I'll show three examples with three different functions to make it happen.

Animate a PPT with the Zoom Feature

Been in a situation where you had to convert values in columns or rows into comma separated values (csv)? Maybe you got a column of value and you needed to query it in another system, BUT that system needed the input values separated by commas (or semicolons). Using Google sheets, there are actually a couple of ways you can do this and I'll show three examples with three different functions to make it happen.

Perform an Approximate Match in Power Query

If you're familiar with doing an approximate match with VLOOKUP or INDEX / MATCH, you know that it returns the next largest match that is less than the specific looked up value. Some called this a fuzzy match, but it's basically the closest match you can find. You might be wondering why you'd want to do this in Power Query when the lookup function mentioned above can do the job. Power Query may work better when you find yourself doing these kind of fuzzy lookups on a recurring basis or this step is part of a larger series of steps when you have a large dataset (over 500K records maybe?). This video will show how to replicate a VLOOKUP or INDEX/MATCH approximate match.

Calculate a Two Way ANOVA with Replication in Excel

A two-way ANOVA test analyzes the effect of independent variables on the expected outcome along with their relationship to the outcome itself. Basically you'd use a two-way ANOVA when you want to know how two independent variables, in combination, affect a dependent variable. Excel make ANOVA calculation fairly easy. This video covers the basics of how to perform an ANOVA with replication test. The key concept to remember here is to see if there is a strong relationship of the interaction between the factors and if there is, it determines that the individual analysis of the factors are not as significant. So you'll need to do a deeper dive on which interactions are affecting your data.

Join Cell Values with CONCATENATE, CONCAT or TEXTJOIN Functions

Would you like to merge text or values in different cells? Depending on the version of Excel, you have several functions that can combine the cells contents together. When combining the values or text string of multiple cells you can put them all together or you can separate them with a delimiter like a comma or semicolon. Whether you want to put data into one column as a single entry or have a separator like a comma, this video will cover the different functions (CONCATENATE, CONCAT & TEXTJOIN) that you can use to do this.

Group Dates in a Pivot Table

Grouping dates in a pivot table is one of those nice slice and dice features. If you get dates in a MM/DD/YYYY or DD/MM/YYYY format and want to see your data aggregated or rolled up into months, quarters, years or any other interval you need to group the dates. What is nice is you can expand and collapse the months (or whatever grouping or ungrouping you chose) to simplify your views. The other nice thing is that you can put the pivot table data into a chart and use the expand and collapse capabilities from the table to affect the chart or use the expand/collapse buttons on the chart itself. This chart can also be put on a separate sheet so you don't have to see the table. 

A note that is discussed in the video is what happens when you can't group and it may have something to do with the date format (Hint: It's not working because of text). There's another note on how this date grouping can be automatically done or undone.