nnet | Neural networks in NumPy/Cython | Machine Learning library
kandi X-RAY | nnet Summary
kandi X-RAY | nnet Summary
A (relatively) simple feed-forward neural network in NumPy/Cython. Only basic layers for multi-layer perceptrons and convolutional neural networks are implemented.
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Top functions reviewed by kandi - BETA
- Runs the MNIST dataset
- Fit the model
- Check gradients
- Setup layers
- Predict new features
- Convert labels to one - hot labels
- Compute the loss of the layer
- Calculate the mean error
- Unhot labels
- Perform fprop
- Compute the output shape
- Inverse of fprop
- Inverse of sigmoid_d
- Sigmoid function
- Read a file
nnet Key Features
nnet Examples and Code Snippets
Community Discussions
Trending Discussions on nnet
QUESTION
I am making a shiny app that allows the user to upload a CSV, then select the independent and dependent variables. Right now I am able to upload a file, select variables and run regression analysis. But, I am stuck at the step where I would pass the lm
object to autoplot
then making it interactive via autoplotly
in a new tab. How can I create interactive regression plots via using user selected variables in a shiny app?
UI
...ANSWER
Answered 2021-Apr-27 at 00:39Try this
QUESTION
What are your preferred techniques for combining a table with a plot in one image using R? I remember using tableGrob() and either patchwork or cowplot months ago but cannot remember the details.
This example uses the ggstatsplot package. I would like to add the correlation coefficients to the correlogram (correlation plot).
...ANSWER
Answered 2021-Jun-07 at 18:49The key elemnent is tableGrob()
from gridExtra
package!
We could use grid.arrange()
.
For the table use tableGrob()
to create a table like the plot of a data frame. Then you can use it with grid.arrange()
function.
QUESTION
I'm trying to configure a simple network structure using Vagrant as depicted in the following figure:
As you can see I aim to simulate a hacker attack which goes from attacker
through router
and reaches victim
, but that's not important for the problem I'm struggling with.
This is my Vagrantfile so far (VritualBox is used as provider):
...ANSWER
Answered 2021-Jun-03 at 22:55You've got a redundant default gateway on victim
and attacker
called _gateway
. You should delete it and leave only the one going to the router via eth1
interface.
QUESTION
I am wanting to build a neural network classifier using the caret package. I have specified a tunegrid with some hyper-parameters that I want to test to get the best accuracy.
After I run the model, the train function function will always default to the standard decay and size values. Is this a bug within caret? or is there an issue with my code?
Code:
...ANSWER
Answered 2021-Apr-27 at 07:42You provided the wrong argument, it should be tuneGrid =
instead of tunegrid =
, so caret interprets this as an argument for nnet
and selects its own grid
With the grid you see above, caret will choose the model with the highest accuracy and from the results provided, it is size=5 and decay=0.1, with the highest accuracy of 0.318.
To do it with the grid you defined,using an example:
QUESTION
I am trying to figure out what is wrong with my initialization of the neural network model. I have already set a pdb trace to see that the defining neural network part is the source of error. Also, I get yellow marks on the defining neural network code because the module is expected to be returned but if I return the module, it causes a recursion error. It is a linear model that has to have an input dimension of the batch size * 81 and an output dimension of the batch size * 1. I am relatively new at pytorch and defining deep neural networks so this may not be a good question. My syntax may also be very bad. Any help is appreciated. The code below is the defining of the neural network and training of the pytorch model.
...ANSWER
Answered 2021-Apr-14 at 21:52Based on your comment, somewhere else in your code you have something like:
QUESTION
So I have several examples of raw text in which I have to extract the characters after 'Terms'. The common pattern I see is after the word 'Terms' there is a '\n' and also at the end '\n' I want to extract all the characters(words, numbers, symbols) present between these to \n but after keyword 'Terms'.
Some examples of text are given below:
...ANSWER
Answered 2021-Apr-07 at 06:33Try the following:
QUESTION
I want to fit a multinomial model with nnet::multinom()
and get predictions with ggeffects::ggemmeans()
. Whereas such procedure works in regular code, I fail to wrap this in a function.
Data
...ANSWER
Answered 2021-Mar-17 at 21:03It doesn't work because of lazy evaluation. The call
member of model_fit
has formula = frmla
, unevaluated. The emmeans
support for that model is expecting a formula there. It will work if you add a line to the original function:
QUESTION
I have been training some models and when I try to use Support Vector Machines with Radial Basis Function Kernel I get the following error:
...ANSWER
Answered 2021-Feb-09 at 05:29As @AlvaroMartinez commented, the error was that I had variables as factor
, when I changed those variables to integer
the model worked correctly.
QUESTION
While reading the PDF table using camelot some columns are concatenated and their values too like below
...ANSWER
Answered 2021-Feb-07 at 18:23I'm sure there's a more elegant way of doing this, but this should work.
edit: with and without dropped. Feel free to post a sample dataset if I'm misunderstanding you. sample data:
QUESTION
This question is a bit confusing so bear with me, it also has to be done with pure Python and no third-party modules.
I can't seem to assign the correct datatype to the CSV values and assign them to the class attributes.
I've tried every way I know, looked around for a few days for an answer...
The value error when FLOAT assigned the "line[4]", and the TypeError if I don't cast the variable.
I've also tried assigning them to new variables and casting the datatype. I think it is due to the rstrip() and strip() function output.
...ANSWER
Answered 2020-Nov-22 at 12:15After the .split() line, replace the empty strings with some number, e.g:
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You can use nnet like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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