
Distance matrix vineyard 2 messages
Hi Dmitriy, I would like to look at the vineyard of a time varying point cloud obtained from a distance matrix but I am unsure about the correct input data format and whether the plvineyard function
Hi Dmitriy, I would like to look at the vineyard of a time varying point cloud obtained from a distance matrix but I am unsure about the correct input data format and whether the plvineyard function

By K.A.Garside2@...
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Literature for computation of homology between two chains that Dionysus is based on 3 messages
Hi! I am a student and I've been using the Dionysus library for a few months (thank you!). My use case is fairly simple  I have a simplicial complex of dimension 2, and I evaluate whether two 1chain
Hi! I am a student and I've been using the Dionysus library for a few months (thank you!). My use case is fairly simple  I have a simplicial complex of dimension 2, and I evaluate whether two 1chain

By o.lamarre7@...
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Using vineyards 8 messages
Hi. I have tried to install the Dionysus library to use the vineyard programs, that is, the first version of Dionysus (https://mrzv.org/software/dionysus/). But when executing make, the following appe
Hi. I have tried to install the Dionysus library to use the vineyard programs, that is, the first version of Dionysus (https://mrzv.org/software/dionysus/). But when executing make, the following appe

By jfespinoza.mx@...
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Homology for huge dataset 5 messages
Hi Dmitry I wanted to find if the latest release of Dionysus is optimized for computing persistence homology for huge data sets. I have a huge dataset of morphology metrics (3 dimensions) of 20,000 ce
Hi Dmitry I wanted to find if the latest release of Dionysus is optimized for computing persistence homology for huge data sets. I have a huge dataset of morphology metrics (3 dimensions) of 20,000 ce

By nukpezah@...
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Homology groups for paths on 8connected grids 3 messages
Hi! I've been playing around with this library and after going through the (great) documentation for it, I'm still stuck trying to implement what I believe to be rather basic: evaluate path homologies
Hi! I've been playing around with this library and after going through the (great) documentation for it, I'm still stuck trying to implement what I believe to be rather basic: evaluate path homologies

By o.lamarre7@...
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representatives of bars, homology classes. . . perhaps with better formatting 2 messages
Greetings, Say I've computed persistent homology of some RIPS complex in Dionysus. How does one go the extra step to find a cycle representative in a homology class? i.e. I would like to identify the
Greetings, Say I've computed persistent homology of some RIPS complex in Dionysus. How does one go the extra step to find a cycle representative in a homology class? i.e. I would like to identify the

By Ryan Budney
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representatives of bars, homology classes
Greetings, Say I've computed persistent homology of some RIPS complex in Dionysus. How does one go the extra step to find a cycle representative in a homology class? i.e. I would like to identify the
Greetings, Say I've computed persistent homology of some RIPS complex in Dionysus. How does one go the extra step to find a cycle representative in a homology class? i.e. I would like to identify the

By Ryan Budney
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Wasserstein or Bottleneck Mapping 2 messages
Hi Dmitriy, Is it possible to obtain, using the library, the optimal mapping of points for either the bottleneck or wasserstein distance? Thanks!
Hi Dmitriy, Is it possible to obtain, using the library, the optimal mapping of points for either the bottleneck or wasserstein distance? Thanks!

By K.A.Garside2@...
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Build Under Windows 4 messages
I've spent some time trying to get Dionysus 2 to build under Windows. Here are my notes on getting it to build. The versions listed are the ones that I used and I have some notes on versions that didn
I've spent some time trying to get Dionysus 2 to build under Windows. Here are my notes on getting it to build. The versions listed are the ones that I used and I have some notes on versions that didn

By micheal.shoemaker@...
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Persistentbased segmentation 3 messages
I think you'll have to explain better what you are trying to do before I can help you. You can get cycles (which are not unique) from Dionysus. That question has come up before on this list. For examp
I think you'll have to explain better what you are trying to do before I can help you. You can get cycles (which are not unique) from Dionysus. That question has come up before on this list. For examp

By
giacomo@...
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Difference between R TDA package and python Dionysus2 4 messages
I've just been comparing the output between the Dionysus version in the TDA package in R and the python Dionysus 2 version and there are slightly different results. I ran it on both sub and super leve
I've just been comparing the output between the Dionysus version in the TDA package in R and the python Dionysus 2 version and there are slightly different results. I ran it on both sub and super leve

By K.A.Garside2@...
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Simplex Representation 4 messages
Hi Dimitry, Would it be difficult to allow for other immutable objects/primitives to be used as Simplex identifiers in the python bindings? It would be super convenient to be able to index simplices b
Hi Dimitry, Would it be difficult to allow for other immutable objects/primitives to be used as Simplex identifiers in the python bindings? It would be super convenient to be able to index simplices b

By tom
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Fast Filtration Creation 3 messages
Hi Dimitry, The docs seem to imply the only way to create a filtration is to loop over simplices and append them to the filtration. Is there a way for this iteration and Simplex object creation to be
Hi Dimitry, The docs seem to imply the only way to create a filtration is to loop over simplices and append them to the filtration. Is there a way for this iteration and Simplex object creation to be

By tom
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The plot_bars function's question 6 messages
Hi Dimitriy, I'm new to Dionysus (and to studying homology persistence),when I try to use Dionysus2 to achieve the learningdemo(from http://outlace.com/TDApart5.html),I got a problem which the plot_b
Hi Dimitriy, I'm new to Dionysus (and to studying homology persistence),when I try to use Dionysus2 to achieve the learningdemo(from http://outlace.com/TDApart5.html),I got a problem which the plot_b

By "Jay
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Runtime error when computing persistence diagram 7 messages
Hi Dimitriy, I have been used Dionysus to compute the persistence diagram for a long time. But recently I encounter a strange runtime error. Here is a small example that is able to reproduce the error
Hi Dimitriy, I have been used Dionysus to compute the persistence diagram for a long time. But recently I encounter a strange runtime error. Here is a small example that is able to reproduce the error

By cai.507@...
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Generators of infinite bars 4 messages
Hi, Dionysus does not compute the generators of infinite bars as mentioned at [https://groups.io/g/dionysus/message/75] and also does not show such bars in the barcode diagram. Is there a way to compu
Hi, Dionysus does not compute the generators of infinite bars as mentioned at [https://groups.io/g/dionysus/message/75] and also does not show such bars in the barcode diagram. Is there a way to compu

By 이덕재
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filtration from a direction 5 messages
Hi, is it possible in dionysus to get filtration of a rips complex from any given direction?
Hi, is it possible in dionysus to get filtration of a rips complex from any given direction?

By indragt@...
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Dionysus 2 functions 3 messages
Are the functions such as Pairwisedistances, Rips, etc. from Dionysus 1 available in Dionysus 2, or should I also implement Dionysus 1? Thank you!
Are the functions such as Pairwisedistances, Rips, etc. from Dionysus 1 available in Dionysus 2, or should I also implement Dionysus 1? Thank you!

By le24p@...
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Persistence Diagram of an image 3 messages
I am trying to get the persistence diagram of an image by building lower star filtrations on the Freudenthal triangulation of a grayscale image (which is basically a numpy array) using the following c
I am trying to get the persistence diagram of an image by building lower star filtrations on the Freudenthal triangulation of a grayscale image (which is basically a numpy array) using the following c

By Hajar Bouazzaoui
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Running Dionysus not on command line 4 messages
I installed Dionysus, and I wonder can we only run the program in terminal? Or is there anyway to run program in app like Sublime, etc.? Thank you!
I installed Dionysus, and I wonder can we only run the program in terminal? Or is there anyway to run program in app like Sublime, etc.? Thank you!

By le24p@...
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