Recent questions

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Hi Im doing a systematic review evaluating the outcomes of a surgical procedure. Various outcomes are included in the review, for example proportion of patients with post...

Dayi asked 18 minutes ago

by Dayi

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Standard deviation index question

COuld someone please show how this is calculated? Lab true value is 6. Series: 5,4,5,6,7,5,3,8,5,9,5,4,5,6 what is the SDI?

IvanSurkosEU asked 18 minutes ago

by IvanSurkosEU

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One vs two tailed t-test

If I conduct a two-tailed t-test and determine the difference between two groups is statistically significant and the mean is higher for one group can I say the increase ...

gauchomcr asked 18 minutes ago

by gauchomcr

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How to identify time periods when one set of time series data has a peak at the same time as another set of simultanerous data is stable and has no peaks

What is a calculation to identify times when one set of time series data (dataset 1) has peaks/spikes and another set of simultaneous data (dataset 2) is stable and has m...

thejaynebrook asked 18 minutes ago

by thejaynebrook

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How Do You Calculate per 1,000 People? What about with a third variable?

For context: I am addicted to learning and decided to branch out into statistics because I don't have much experience in it and I enjoy math. I'm not in college or highsc...

CI_Magazine asked 18 minutes ago

by CI_Magazine

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[D] Topic extraction to simplify news articles

I build feature stores and my wife works in the media. Was thinking it would be cool to build various topic extraction models to parse the 5-Ws from article text - value ...

24KDropOff asked 26 minutes ago

by 24KDropOff

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[P] Any thoughts on the possibility of machine learning to retrofit HVAC in buildings?

I often wonder about the best way to retrofit my house to optimize for cost and comfort. I suspect people already do old school modeling for commercial settings but wonde...

Bashartek asked 26 minutes ago

by Bashartek

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[D] High False positive rate

Hi I am trying to improve the model which has a high false positive rate. The high false positive rate comes from the distributional shift between the training data and t...

esnathesinger asked 26 minutes ago

by esnathesinger

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Is Data Science a good education path?

I have allways liked computers, programming and ive allways been good at math. I have chosen Data Science for my bachelor this year. But after reading online I only see n...

VETERANSCHARITY asked 58 minutes ago

by VETERANSCHARITY

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Transitioning from Product Management to Data Science. Anyone done that?

Hi y'all, So I'm currently a PM, and I'm looking into transitioning into Data Science. I have just have 2.5 years of industry experience, and I did my undergrad in Data S...

JamieConlan11 asked 58 minutes ago

by JamieConlan11

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Is cross_val_score function the same as the KFold loop method? Help please!

Im doing a ml project doing binary classification and I fear I may be overfit due to a small dataset. 540 rows by 10 columns. I have 97% accuracy and my confusion matrix ...

DrAmeghames asked 58 minutes ago

by DrAmeghames

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How to do market sizing?

I work in telecom. These are fake numbers for illustrating purposes. I have customer A who has 20% market share in US overall. Let's say they have 1000 calls per month an...

ETHealthWorld asked 58 minutes ago

by ETHealthWorld

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Graduate unable to obtain entry level data analyst position.

Graduated a few years ago and in that time have been dealing with personal and the standard covid issues. In that time I have been applying for entry level roles like "da...

CDI_mx asked 58 minutes ago

by CDI_mx

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Entity Resolution With Skleabr

Hi, I am familiar with machine learning, but mostly for making predictions like who to sell to or how many service tickets well get. I'm wondering if someone can link me ...

bilinkis asked 58 minutes ago

by bilinkis

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Step-by-step on how update to a specific version of R.

I am currently in R 3.5.2 and I would like to update to the 3.6.0 version. I do not want the R 4.2.2 version (the latest R version) because I don't have the appropriate m...

boatint asked 58 minutes ago

by boatint

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When to use the quadratic formula to evaluate errors

Hi everyone, at uni they told us that if the measured quantities are uncorrelatedwe need to use the quadratic formula to sum errors (sqrt(E1\^2+...)). however they didn't...

bishoppitts asked 58 minutes ago

by bishoppitts

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How to identify time periods when one set of time series data has a peak at the same time as another set of simultanerous data is stable and has no peaks

What is a calculation to identify times when one set of time series data (dataset 1) has peaks/spikes and another set of simultaneous data (dataset 2) is stable and has ...

carlostocci asked 58 minutes ago

by carlostocci

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Job Search strategy Question

Hi everyone, I believe that some data scientists/ML engineers with experience in this field could help me and other future graduates in this situation. I will be graduati...

KamilleXX asked 58 minutes ago

by KamilleXX

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Actual Time Spent on Interview Take Home Assignments

I’ve completed 2 recent company take home assignments for data science/analyst and found the suggested time completely off. Both claimed 2-4 hours, and I spent 7 on the...

FranceenUruguay asked 58 minutes ago

by FranceenUruguay

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Can Data Science work flows follow agile? How do we handle EDA, when directions change on a weekly basis based on findings?

JimGudas asked 59 minutes ago

by JimGudas