quiver | Interactive convnet features visualization for Keras | Machine Learning library

 by   keplr-io JavaScript Version: Current License: MIT

kandi X-RAY | quiver Summary

kandi X-RAY | quiver Summary

quiver is a JavaScript library typically used in Artificial Intelligence, Machine Learning, Deep Learning, Pytorch, Keras applications. quiver has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Interactive convnet features visualization for Keras.

            kandi-support Support

              quiver has a medium active ecosystem.
              It has 1678 star(s) with 228 fork(s). There are 60 watchers for this library.
              It had no major release in the last 6 months.
              There are 27 open issues and 34 have been closed. On average issues are closed in 98 days. There are 5 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of quiver is current.

            kandi-Quality Quality

              quiver has 0 bugs and 0 code smells.

            kandi-Security Security

              quiver has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              quiver code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              quiver 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

              quiver releases are not available. You will need to build from source code and install.
              Installation instructions, examples and code snippets are available.
              quiver saves you 210 person hours of effort in developing the same functionality from scratch.
              It has 515 lines of code, 30 functions and 55 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            quiver Key Features

            No Key Features are available at this moment for quiver.

            quiver Examples and Code Snippets

            No Code Snippets are available at this moment for quiver.

            Community Discussions


            Matplotlib plot of ODE solution is not tangential to RHS vector field
            Asked 2022-Apr-15 at 17:51

            I am experimenting with oridnary differential equations and for that I programmed a little code that plots the trajectory of a pendulum in phase space. However, the trajectory isn't really tangential to the vector field given by the right hand side of the ODE as it is supposed to be. Is this a plotting issue? As I use the same function of the ODE for both the numerical integration and plotting of the vector field I dont know how this can happen...



            Answered 2022-Apr-15 at 17:25

            This looks like an aspect issue. You could add ax.set_aspect('equal') to get the result you want.

            See code below:

            Source https://stackoverflow.com/questions/71886382


            Interact and plot quiverin Python Jupyter Notebook
            Asked 2022-Feb-28 at 19:53

            I would like to use the interact function to create sliders where the user would input vector coordinates and plot these coordinates. The problem is that changing the input values doesn't make a new graph, would it be possible to make it work?

            I'm working with jupyter notebook. My code



            Answered 2022-Feb-28 at 19:53

            You can use ipywidgets interactive plot. Matplotlib has quiver:

            Source https://stackoverflow.com/questions/71281434


            Downsampling Velocity Information in a Quiver Plot
            Asked 2022-Feb-23 at 10:59

            I have two arrays (vel_y,vel_z) representing velocities in the y and z directions, respectively, that are both shaped as (512,512) that I am attempting to represent using a quiver plot. Here is how I plotted the quiver:



            Answered 2022-Feb-23 at 10:59

            The simple way to do this is simply to take one point over N in each vectors given to quiver.

            For a given np.array, you can do this using the following syntax: a[::N]. If you have multiple dimensions, repeat this in each dimension (you can give different slip for each dimension): a[::N1, ::N2].

            In your case:

            Source https://stackoverflow.com/questions/71229858


            Creating a cube that is normal to an eigenspace in Matplotlib.pyplot
            Asked 2022-Jan-09 at 08:53

            I am trying to make a cube where all the sides are normal to each of the eigenvectors, as a way to visualize principle stresses given any possible normal and shear stresses in 3d. I've tried using simple rotation matrices and applying them to a list of points but there always seems to be some error and I'm not sure if it is in how I apply the rotation matrices, the angles I give them, or the order I use.



            Answered 2022-Jan-09 at 08:53

            I figured it out, so basicaly the angles were wrong and the rotation matrices were not general enough.

            What I first needed to do was align the cube with one of the axies, I did this by rotating it only about the z axis to one of my vectors, then rotate it along a new vector perpendicular to the first on the xy plane, and finaly along the vector its self. Heres the code I used to fix this: (I'll also add a link to the wikapedia article with the rotation matrices as that was where i figured it out) https://en.wikipedia.org/wiki/Rotation_matrix

            Source https://stackoverflow.com/questions/70628731


            How to apply matplotlib quiver autoscale to two vector fields?
            Asked 2022-Jan-04 at 16:54

            I am plotting two vector fields on top of each other and I want to use the auto-scale feature to set the arrow size such that the two fields are at the same scale automatically. (Part of this notebook.)

            If I plot them one after the other, they are drawn at different scales. In this case the black arrows are artificially inflated compared to green.



            Answered 2022-Jan-04 at 16:29

            You need to pass the same scale argument to both plt.quiver calls.

            If you don't provide a scale than a visually pleasing scale is derived automatically. So you could in principle extract the autoscaling code and use it to get the automatic scales for both quiver plots and then use for instance the average of the two values.

            Another, easier, way is to first invisibly plot both quiver plots using the do-nothing backend 'template', retrieve the automatically calculated scales and use the average of them in both real plotting calls:

            Source https://stackoverflow.com/questions/70576950


            Flutter Countdown Timer milliseconde
            Asked 2022-Jan-04 at 00:57

            I just got back to Flutter, and wanted to test the countdown for a simple practice app. I can scroll the countdown second by second but I haven't figured out how to do it with the milliseconds.

            the current code:



            Answered 2022-Jan-03 at 09:23

            Simply use this : Duration(milliseconds: )

            you can use milisecond , second and etc in Duration Widget

            Source https://stackoverflow.com/questions/70563536


            fill color between arrowheads in a quiver plot
            Asked 2021-Dec-16 at 14:05

            I'm plotting a few arrows in a quiver plot, and I wonder if there is a way to fill the shape traced between the arrowheads with color. The quiver plots look like this:



            Answered 2021-Dec-16 at 14:05

            quiver returns a specialized PolyCollection for arrows. The tip of the arrow head is vertice #3 of each arrow. From this collection we get the coordinates of the arrowheads and create a PathPatch to add to the Axes:

            Source https://stackoverflow.com/questions/70356917


            Phase portrait of Verhulst equation
            Asked 2021-Nov-11 at 18:31

            I was trying to an example of the book -"Dynamical Systems with Applications using Python" and I was asked to plot the phase portrait of Verhulst equation, then I came across this post: How to plot a phase portrait of Verhulst equation with SciPy (or SymPy) and Matplotlib?

            I'm getting the same plot as the user on the previous post. Whenever, I try to use the accepted solution I get a "division by zero" error. Why doesn't the accepted solution in How to plot a phase portrait of Verhulst equation with SciPy (or SymPy) and Matplotlib? works?

            Thank you very much for you help!


            Using the code from the previous post and the correction given by @Lutz Lehmann



            Answered 2021-Nov-11 at 18:31

            With the help of @Lutz Lehmann I could rewrite the code to get want I needed.

            The solutions is something like this:

            Source https://stackoverflow.com/questions/69932132


            How To Display Velocity Magnitude in a Vector Field Using Quiver Plot?
            Asked 2021-Nov-08 at 17:28

            First, I have data for velocity components (x and y) at a certain point on a two-dimensional grid. I can visualize each velocity with ff.create_quiver(X, Y, UN, VN) where UN and VN are the directions of each velocity. But I am still confused about how to display or plot the magnitude for each velocity speed together with each "arrow". Code output:



            Answered 2021-Nov-08 at 17:28

            I believe it's not possible with create_quiver, but you can do something like

            Source https://stackoverflow.com/questions/69834501


            Create 3D Streamtube plot in Plotly
            Asked 2021-Sep-27 at 18:20

            I would like to create a 3D Streamtube Plot with Plotly.

            Here is a cross-section of the vector field in the middle of the plot to give you an idea of how it looks like:

            The final vector field should have rotational symmetry.

            My Attempt
            1. Download the data here: https://filebin.net/x6ywfuo6v4851v74
            2. Run the code bellow:




            Answered 2021-Sep-27 at 18:20

            I have rewritten my answer to reflect the history of conversation but in a disciplined manner.

            The situation is:

            Source https://stackoverflow.com/questions/68774173

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


            No vulnerabilities reported

            Install quiver

            If you want the latest version from the repo. Take your keras model, launching Quiver is a one-liner. This will launch the visualization at localhost:5000.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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