Analytics SAQL Developer Guide

Overview
Quick Start
Examples
Analyze Your Data Over Time
Calculate How Long Activities Take
Display the Opportunities Closed This Month
Forecast Future Data Points with timeseries
Combine Data from Multiple Data Streams with cogroup
Replace Null Values with coalesce()
Dynamically Display Your Top Five Reps with Windowing
Append Datasets using union
Calculate the Slope of the Regression Line
Show the Top and Bottom Quartile
Calculate Grand Totals and Subtotals with the rollup Modifier and grouping() Function
SAQL Reference
Query Performance
PDF

Calculate the Slope of the Regression Line

Use SAQL to perform linear analysis on your data to find the line that best fits the data. Then use .regr_slope to return the slope of this line.

Example - Calculate the Relationship Between Number of Activities and Deal Amount

Suppose that you have a dataset that includes the number of activities (such as meetings) and the won opportunity amount.

Sample scatter plot.

How much bigger will the deal size be for each extra activity? regr_slope performs a linear analysis on your data then calculates the slope (that is, the increased amount you win for each extra activity).
1q = load "data/sales";
2q = group q by all;
3
4--trunc() truncates the result to two decimal places
5q = foreach q generate trunc(regr_slope('Amount', 'NumActivities'),2) as 'Gain per Activity';

Based on your existing data, every extra activity that you have tends to increase the deal size by $1.45 million, on average.

Diagram showing slope of a regression line.