This blog post demonstrates several examples of Custom Expressions using the OVER function. In a couple of previous blog posts I’ve focused on using the OVER function in calculated columns, so to mix it up this time we’ll be looking at OVER functions within a visualization.
The OVER function is a very useful function in Spotfire that calculates expressions and aggregations across different groups of data. I’ve previously written about the OVER function, which you can check out here. This post has additional examples using the OVER function, focusing on multiple columns and expressions requiring the Intersect function.
There are many different ways to use standard deviation in TIBCO Spotfire – the video in this post shows 6 different examples of how you can use standard deviation in Spotfire to learn more about your data.
Standard deviation is a statistical calculation that’s used to describe the spread of data around its average value. Standard deviation is simply the square root of the data’s variance, and the variance describes how close each data point is to the overall average. Standard deviation is useful in when analyzing the distribution a dataset, as shown in the screenshot below.
The Data on Demand feature in Spotfire lets you define conditions that must be met before data is loaded from the source into Spotfire. Instead of loading all data at once, data will only be loaded for the conditions that you specify.
In this video you’ll learn how to load Data on Demand from a large database by selecting, or marking, data points on a map chart, as shown in the screenshot below.