The functional-data-analysis tag has no wiki summary.
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Rubric for good data analysis
As statistics education moves online, educators are facing new problems related to the administration of their courses. Jeff Leek and Roger Peng, for example, taught approximately 100,000 students ...
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451 views
Predicting response from new curves using fda package in R
Basically all I want to do is predict a scalar response using some curves.
I've got as far as doing a regression (using fRegress from the fda package) but have no idea how to apply the results to a ...
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Dynamic Time Warping and normalization
I'm using Dynamic Time Warping to match a "query" and a "template" curve and having reasonable success thus far, but I have some basic questions:
I'm assessing a "match" by assessing whether the DTW ...
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111 views
Modelling longitudinal data
We have longitudinal data on children(n<20) in which we measure different quantities A,B,C,D (like distance walked, time spent in school etc.). These are all continuous variables. We measure these ...
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1answer
73 views
Estimate global mean and stdev from samples taken at regular intervals
I have data from a load test of an automated system with several thousand data points that cover roughly 1 week of operation. I need to compare several algorithms for this system to see which is ...
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2answers
167 views
Data analysis on multiuser environment
I have following environment that I'd like to analyze.
My company is divided in two teams:
Insert Team (composed by 150 persons)
Quality Check Team (composed by 10 persons)
Suppose that all ...
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Year-over-year tax rate comparisons with no constants?
Is it possible to derive a single formula to track year-over-year changes in effective property tax rate when all values fluctuate?
My inclination is that this is not possible, but I would like to ...
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119 views
What statistics to use when the data are polynomial functions (aka change over time)?
EDIT:
OK, having spent the last couple of hours checking out some pubs on functional data analysis, I am actually starting to feel a little silly having asked the question in the first place! It's ...
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100 views
Possible projects for Data Analysis course? [closed]
I am taking a Data Analysis course and I need to do a project. I'd like to learn some possible hot topics that I can use for that project. Computer vision and image recognition are particularly ...
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362 views
How to simulate functional data?
I'm trying to test various functional data analysis approaches.
Ideally, i'd like to test the panel of approaches i have on simulated functional data. I've tried to generate simulated FD using an ...
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1answer
296 views
What is the level of measurement of image data?
Question:
This is a bit of an abstract question, but bear with me. I am averaging images, to try and deduce what the average image of a specific subject looks like (just out of curiosity, it might ...
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Predicting curve registration parameters in functional data analysis with noisy data
I have some data I'm studying where functional data analysis seems
like a promising approach. But having never tackled FDA
before, I'm having trouble wrapping my head around it.
For background, I ...
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1answer
143 views
Variability of a curve with 4 parameters
Say I have 10,000 data in 2-D and I want to fit a curve to them. There are many functional forms this curve could take -- polynomial, B-spline, trigonometric, and so on. I've decided that I only want ...
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161 views
Estimating speed from position updates with uncertain time intervals
I have 2 alternative methods to solve a problem, and I was just wondering what people who know the math better than I think, and if there is a better method to use for this type of problem.
The ...
