Causal
Web and SaaS
spreadsheet modelling
SHOW HN2019
How HN took it
1 positive, 17 neutral or asking, 1 mixed, 2 critical, out of 21 comments about the project. Thread score -0.09.
Idea: 0 for, 1 againstExecution: 0 for, 1 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Useful idea; Guesstimate and similar tools exist
From 1 comment
In fact there is an example of this kind of sensitivity analysis tool already offered at https://www.getguesstimate.com (not my venture, but a friend’s). It’s like a spreadsheet…
ricksunny on HN
Objections
Assumes independent input variables, a limitation for dependent inputs
From 1 comment
Yep — we assume that the input variables are independent. This is more acceptable in some settings than others, so as always, it's good to understand the limitations of the…
refrigerator on HN
Excel is error-prone for important models
From 1 comment
There are three answers to this: - Do you really want to be using important models in such an error-prone and difficult to test environment as Excel? There's a whole Spreadsheet…
emarsden on HN
Only uniform input distributions in the sensitivity analysis
From 1 comment
We actually assume uniform distributions for the inputs of the sensitivity analysis. This tool is a standalone thing, and you're right — it's similar to TopRank. Our actual…
refrigerator on HN
Requests
Support for dependent input variables
From 2 comments
I see you're using a variance based approach. How does it handle a dependent structure? To my knowledge, Sobol indices assume that the input variables are independent.
sheikheddy on HNThere has been some exploration into variance based global sensitivity analysis for models with dependent inputs. [1][2][3]…
sheikheddy on HN
Questions
How it differs from Excel data tables and tornado plots
From 1 comment
Hi Lukas. Thanks for making this. I will ask the obvious question: how is this different from the sensitivity analysis provided in the built in data table functionality? I'll say…
omarhaneef on HN
How it differs from Excel Solver and Palisade @Risk
From 2 comments
I don't want to dismiss this out of hand, but what does it do that the Excel Solver doesn't? Excel, LibreOffice Calc etc. are very comprehensive tools, that include a lot of…
zozbot234 on HNDoes it cover a different use case compared to Palisade @Risk?
omega3 on HN
How users without modelling expertise avoid misusing the statistics
From 1 comment
I'm late to the party. Hoping you can answer a question. On the one hand, you're lowering the bar to do useful statistical work, which is awesome. A new set of people will be…
6gvONxR4sf7o on HN
Alternatives named
Guesstimate
From 1 comment
In fact there is an example of this kind of sensitivity analysis tool already offered at https://www.getguesstimate.com (not my venture, but a friend’s). It’s like a spreadsheet…
ricksunny on HN
Palisade @Risk and TopRank
From 2 comments
Does it cover a different use case compared to Palisade @Risk?
omega3 on HNThanks for the reply. Does your tool assume that the variables are normally distributed for the Monte Carlo analysis you run? It looks like your tool is closer to TopRank from…
omega3 on HN
Excel data tables
From 1 comment
Hi Lukas. Thanks for making this. I will ask the obvious question: how is this different from the sensitivity analysis provided in the built in data table functionality? I'll say…
omarhaneef on HN
Sheetless
From 1 comment
Also: https://sheetless.io/ Relevant to understanding causality in systems: https://en.wikipedia.org/wiki/Twelve_leverage_points
pgt on HN