LEFT, RIGHT and FIND

Strings and things Think spreadsheets and you normally think numbers. However they are good at many processing tasks including text processing. Here we use a simple example from by Sumit Bansal in trumpexcel.com, extracting the first word from a cell. The article...

Looking up …

Looking up and extracting data from tables of numbers and strings is one of those things that most serious data analysts need to do on a regular basis. If you’re familiar with Excel, you may have come across VLOOKUP and HLOOKUP and more recently XLOOKUP. Each of...

Fixing a spreadsheet formula

We have done a little theorising on complexity of working with a simple functional language. Although not necessarily famed for being a functional language, we are looking at spreadsheets and applying a classical model of human performance known as the Keystroke Level...

Before Modelling …

Developing spreadsheets involves is a balancing act between how much you express in formulae within a single cell and how much you break-up formulae across a number of cells. In many cases a single formula captures much of what needs to be computed, but it is so...