Mateusz Soliński

9 Questions 6 Answers 0 Followers

Questions related from Mateusz Soliński

Statistical tests (t Student or Mann-Whitney tests) with enormous sample size - is it a good practice?

I want to ask about the usage of parametrical and non-parametrical tests if we have an enormous sample size. Let me describe a case for discussion: - I have two groups of samples of a continuous...

03 November 2023 1,787 6 View

Spirometry report: displaying flow-volume curve. Which curve should be displayed? With largest FVC, FEV1+FVC or other?

I would like to ask about your experience in reporting spirometry results. In the reports from spirometry examinations we usually see the flow-volume and volume-time curves obtained from the...

26 October 2021 6,592 5 View

How to calculate predictive flow-volume curve in spirometry from predictive FEV1, FVC and PEF values?

Hi, in many spirometer reports there are predictive curves at flow-volume plots (see figures attached to this question). I would like to draw similar predictive curves to the results that I...

09 February 2018 6,435 1 View

Which MATLAB function: ttest or ttest2 I should use to compare two paired datasets??

Hi, I would like to compare two sets of data using t-Student test in MATLAB environment. The data are the values of parameter X calculated for n=88 pairs of signals where each pair contains the...

29 November 2017 8,503 3 View

Do you know any markers which can predict the exacerbations of asthma and COPD a few days before they will have occurred?

Hi, I am looking for some studies focused on prediction of exacerbation in chronic pulmonary diseases (especially asthma and COPD) considering changes in respiratory parameters (measured by...

07 September 2016 725 4 View

Machine learning: if proportion of number of cases in different class in training set matters?

I have a huge set of training data devided into two class. The class no. 1 contains over 300,000,000 cases while class no. 2 has only about 2000 cases. I want to use machine learning technics to...

12 April 2016 1,535 7 View

Connection between subjects based on physiological signals (RR intervals) - how to measure it?

Hi everyone! I'm looking for some exciting analysis methods for correlation, coherence, causality, etc. that can be used for physiological signals (time series, particularly RR time series)...

01 January 1970 3,318 11 View

A good nonlinear signal analysis methods for short-term signals (from 30 s - 5 min, mainly RR interval series)

Hello everyone! Through my studies, I used a lot of signal analysis methods for medical data (mostly RR interval series), focusing on the nonlinear ones such as: Shannon entropy, sample entropy...

01 January 1970 6,128 5 View

Post doc in the UK - a large visa fees - do you have any support from your University?

Since the UK left the EU, skilled workers from the European community have had to pay for visa applications and Immigration Health Surcharge (IHS). At the time of writing this post, the fee for a...

01 January 1970 5,976 0 View