less-wrong-estimate

Generate estimates for tasks based on a reliable technique.

This uses PERT to predict estimates

Program Evaluation and Review Technique(PERT) is a method used to examine the tasked that are in a schedule and determine a variation of the Critical Path Method (CPM). It analyzes the time required to complete each task and its associated dependencies to determine the minimum time to complete a project. It estimates the shortest possible time each activity will take, the most likely length of time, and the longest time that might be taken if the activity takes longer than expected.

Usage

Preferred:

npx less-wrong-estimate -o <optimistic(best case) time> -m <most likey time> -p <passimistic(worst case) time>

If you want it installed globally:

npm install -g less-wrong-estimate
or
yarn add global less-wrong-estimate

less-wrong-estimate -p <optimistic time> -m <most likey time> -o <optimistic time>

PERT has two formulas. The tiny package only does only these two calculations:

Estimated Time = (P+4M+O)/6

Standarad Deviation = (P + O)/6

P - Passimistic time
M - Most likely time
O - Optimistic time