Dimensional | Swift matrices with friendly semantics | Math library

 by   JadenGeller Swift Version: Current License: MIT

kandi X-RAY | Dimensional Summary

kandi X-RAY | Dimensional Summary

Dimensional is a Swift library typically used in Utilities, Math applications. Dimensional has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Dimensional defines a generic type Matrix that is parameterized by the type of element it holds. Note that matrices can be initialized from 2-dimensional array literals, and that each inner-array represents a row in the constructed Matrix.
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              Dimensional has a low active ecosystem.
              It has 37 star(s) with 11 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 0 have been closed. There are 2 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of Dimensional is current.

            kandi-Quality Quality

              Dimensional has no bugs reported.

            kandi-Security Security

              Dimensional has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              Dimensional is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              Dimensional releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

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            Dimensional Key Features

            No Key Features are available at this moment for Dimensional.

            Dimensional Examples and Code Snippets

            No Code Snippets are available at this moment for Dimensional.

            Community Discussions

            QUESTION

            Multi-dimensional Array; JavaScript; Algorithum
            Asked 2021-Jun-15 at 19:02

            Details
            I'm working on an algo dealing with a multi-dimensional array. If there is a zero, then the elements of the same column, but following arrays will also equal zero. I want to be able to sum the items that are not zeroed out.

            ...

            ANSWER

            Answered 2021-Jun-15 at 17:18

            QUESTION

            Transform a list of lists into a list of numbers based on uniqueness
            Asked 2021-Jun-15 at 18:44

            So let us say that we have a 2 dimensional list of numbers:

            ...

            ANSWER

            Answered 2021-Jun-15 at 16:51

            Would something like this work?

            Source https://stackoverflow.com/questions/67990319

            QUESTION

            Finding two centres of array
            Asked 2021-Jun-15 at 13:53

            I have a two dimensional numpy arrays which describes a list of coordinates where something happens. There are two events on the scene and I would like to calculate where those two are. But I do have difficulties to distinguish those two since there isn't any good pattern from event to event.

            Example:

            ...

            ANSWER

            Answered 2021-Jun-15 at 13:53

            There are all manner of clustering algorithms and many are implemented in scikit-learn.cluster. They are well documented and the docs have nice examples, but the various algorithms have trade-offs which can take a while to figure out. For example if you have a general idea about how spaced the clusters are (reflected in the epsilon parameter) you can get good results with DBSCAN:

            Source https://stackoverflow.com/questions/67987352

            QUESTION

            error segmentation fault in dynamic array
            Asked 2021-Jun-15 at 11:51

            I am solving this problem on dynamic array in which input first line contains two space-separated integers,n, the size of arr to create, and q, the number of queries, respectively. Each of the q subsequent lines contains a query string,queries[i]. it expects to return int[]: the results of each type 2 query in the order they are presented.

            i tried to attempt as below and my code seems fine to me but it gives segmentation fault error. please help me where I am getting conceptually wrong. thanks.

            problem: Declare a 2-dimensional array,arr , of n empty arrays. All arrays are zero indexed. Declare an integer,last answer , and initialize it to zero.

            There are 2 types of queries, given as an array of strings for you to parse:

            Query: 1 x y

            Let idx=((queries[i][1]^last_answer)%n);. Append the integer y to arr[idx].

            Query: 2 x y

            Let idx=((queries[i][1]^last_answer)%n);. Assign last_answer=arr[idx][queries[i][2]%(arr[idx].size())] . Store the new value of last_answer to an answers array.

            input: 2 5

            1 0 5

            1 1 7

            1 0 3

            2 1 0

            2 1 1

            output:

            7

            3

            ...

            ANSWER

            Answered 2021-Jun-15 at 11:25

            You are accessing elements of vector without allocating them.

            resize() is useful to allocate elements.

            Source https://stackoverflow.com/questions/67985309

            QUESTION

            Tensorflow ValueError: Dimensions must be equal: LSTM+MDN
            Asked 2021-Jun-14 at 19:07

            I am trying to make a next-word prediction model with LSTM + Mixture Density Network Based on this implementation(https://www.katnoria.com/mdn/).

            Input: 300-dimensional word vectors*window size(5) and 21-dimensional array(c) representing topic distribution of the document, used to train hidden initial states.

            Output: mixing coefficient*num_gaussians, variance*num_gaussians, mean*num_gaussians*300(vector size)

            x.shape, y.shape, c.shape with an experimental 161 obserbations gives me such:

            (TensorShape([161, 5, 300]), TensorShape([161, 300]), TensorShape([161, 21]))

            ...

            ANSWER

            Answered 2021-Jun-14 at 19:07

            for MDN model , the likelihood for each sample has to be calculated with all the Gaussians pdf , to do that I think you have to reshape your matrices ( y_true and mu) and take advantage of the broadcasting operation by adding 1 as the last dimension . e.g:

            Source https://stackoverflow.com/questions/67965364

            QUESTION

            How can I change all specific values of a image (3D NumPy array) at once in python?
            Asked 2021-Jun-14 at 12:23

            I want to change all specific values in a 3D Ndarray image file.
            I'm working on mapping a colormap to an image file.

            For example :

            ...

            ANSWER

            Answered 2021-Jun-14 at 12:23

            You can speed up the process by getting rid of the two for loops. If you used np.where or np.all inside the loop, then this is no wonder it took time.

            I mostly have the feeling that you don't use numpy at its best... But whatever... So to remove the for loops I would advise you to do something like:

            Source https://stackoverflow.com/questions/67969467

            QUESTION

            Haskell Accelerate replicate matrix
            Asked 2021-Jun-14 at 10:22

            How can I replicate matrix in Haskell Accelerate? For example, I have a matrix mat :: Matrix (Z :. 2 :. 5) .... I want to get a three-dimensional array with shape Z :. 9 :. 2 :. 5. I tried to use A.replicate (A.lift (Z :. 9 :. All)) mat, but I get an error

            Couldn't match type ‘Z’ with ‘DIM0 :. Int’ Expected type: Acc (Array (SliceShape ((Z :. Int) :. All)) a) Actual type: Acc (Matrix a)

            What does that mean?

            And similarly, if I have a matrix with shape Z :. 9 :. 5, how can I get a three-dimensional array with shape Z :. 9 :. 2 :. 5?

            ...

            ANSWER

            Answered 2021-Jun-14 at 10:22

            The problem is that the slice needs to have the same rank (number of dimensions) as the input array. All does not mean 'all the rest of the dimensions', but it only means 'all the elements in this dimension'. So you can solve your issue with:

            Source https://stackoverflow.com/questions/67964351

            QUESTION

            Is there a way to write 3 dimensional array from CPLEX to Excel?
            Asked 2021-Jun-14 at 09:01

            I'm having a result array of X[k][i][j] (with k in Day range from 1 to 365, i in Task range from 1 to 200 and j in Repetition range from 0 to 365).

            I know how to write a 2 dimensional array from cplex to excel but 3 dimensional array to excel seems like a problem.

            Is there a way to write a 3 dimensional array from cplex to excel? I tried to use the method from this link but then it said that the constraint is conflict (Maybe because of my j range from 0 to 365?)

            Could someone please help me out? Thank you so much in advance!

            ...

            ANSWER

            Answered 2021-Jun-14 at 08:55

            For 3D you may turn your array into a tuple set and then Sheetwrite your tuple set

            See Excel and opl https://www.linkedin.com/pulse/excel-rocket-science-optimization-alex-fleischer

            Source https://stackoverflow.com/questions/67967323

            QUESTION

            Eliminate or Simplify repetitive Python code
            Asked 2021-Jun-13 at 23:04

            I have the following development that I am working on with the ElementTree and Pandas module in Python:

            ...

            ANSWER

            Answered 2021-Jun-13 at 23:04

            you can extract the repetitive part into its own function that take as arguments the parts that change, like for example:

            Source https://stackoverflow.com/questions/67962857

            QUESTION

            Python two dimensional lists
            Asked 2021-Jun-12 at 18:20

            Please how do I use the .append() method to add a list with values (two dimensional lists) ?

            For example if you are asked to Use the .append() method to add a list with the values of "computer science" and an associated grade value of 100 to our two-dimensional list of gradebook

            How do you go about it?

            ...

            ANSWER

            Answered 2021-Jun-12 at 18:20
            gradebook = []
            
            class1 = ['computer science', 100]
            class2 = ['history of needlework', 90]
            
            gradebook.append(class1)
            gradebook.append(class2)
            
            print(gradebook)
            

            Source https://stackoverflow.com/questions/67951692

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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            Install Dimensional

            You can download it from GitHub.

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