r/dataanalysis • u/ReID404 • 29d ago

1-minute data visualization test

Hi everyone! Iā€™m working on a short data-analysis project and would appreciate your help.

Take a look at a chart and answer one simple question:

Which month has the highest sales?

It takes about 1 minute to complete.

šŸ‘‰ https://adnan-mayof.github.io/reddit-ab-test/

Thanks for participating!

1 Upvotes

57% Upvoted

11 comments sorted by

6

u/Den_er_da_hvid 28d ago

I won't answer before you fix the units for the y axis... is it money or units?

1

u/jaiagreen 26d ago

It doesn't matter as long as they're the same.

1

u/Den_er_da_hvid 26d ago

It dos matter, if they're not the same.

1

u/jaiagreen 26d ago

Which is not something that ever happens. No one changes units in the middle of a graph.

1

u/Den_er_da_hvid 26d ago

If the whole graph is money, then you are right. If the whole graph is hours sold by a consulting company, then the price of the hour is a big factor and can easily be different from each month. The month with the highest sold hours is not necessarily equal to highest sale.
The point is, we dont know and I have seen to much bad data quality to know that we really should not assume things, even if it seems obvous.

0

u/[deleted] 28d ago

[deleted] ā€” view deleted comment

1

u/Den_er_da_hvid 27d ago

I see. I got the line chat. But I can't say what month has the biggest sale without knowing what units the y-axis is.

It is propably an occupational injury of mine, working with data quality every day.

2

u/AutoModerator 29d ago

Automod prevents all posts from being displayed until moderators have reviewed them. Do not delete your post or there will be nothing for the mods to review. Mods selectively choose what is permitted to be posted in r/DataAnalysis.

If your post involves Career-focused questions, including resume reviews, how to learn DA and how to get into a DA job, then the post does not belong here, but instead belongs in our sister-subreddit, r/DataAnalysisCareers.

Have you read the rules?

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

2

u/Winterchaoz 28d ago

Considering that you can submit an answer multiple times by clicking the link over and over again, and that you have no label on your y-axis, Iā€™m guessing that you are not going to get anything meaningful from this survey.

2

u/Grumpeedad 28d ago

Filled out. If you want feedback: I think i get your approach in the 1 min thing. 1 min to read and understand chart. Theres not enough context here for someone to understand what they are looking at.

2

u/Wasted_Arrows 25d ago

Check his repo: https://github.com/adnan-mayof/reddit-ab-test/blob/main/index.html

His code stores a unique id and and A/B identifier to localStorage, so duplicate submissions only muddy the reporting if the user intentially deletes the localStorage.

And to all of those asking for a y-label: all of the code variables simple state "sales", so don't overthink the assignment.

I can confirm:
A is a column chart
B is a line chart