# Sigma | Rocket powered machine learning | Machine Learning library

## kandi X-RAY | Sigma Summary

## kandi X-RAY | Sigma Summary

Rocket powered machine learning. Create, compare, adapt, improve - neural networks at the speed of thought.

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### Top functions reviewed by kandi - BETA

Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Sigma

## Sigma Key Features

## Sigma Examples and Code Snippets

```
def resize_images_v2(images,
size,
method=ResizeMethod.BILINEAR,
preserve_aspect_ratio=False,
antialias=False,
name=None):
"""Resize `images` t
```

```
def pinv(a, rcond=None, validate_args=False, name=None):
"""Compute the Moore-Penrose pseudo-inverse of one or more matrices.
Calculate the [generalized inverse of a matrix](
https://en.wikipedia.org/wiki/Moore%E2%80%93Penrose_inverse) using i
```

```
def non_max_suppression_with_scores(boxes,
scores,
max_output_size,
iou_threshold=0.5,
score_threshold=flo
```

## Community Discussions

Trending Discussions on Sigma

QUESTION

So... I can `sympy.integrate`

a normal distribution with mean and standard deviation:

ANSWER

Answered 2021-Jun-15 at 01:38Here's a close case that works:

QUESTION

I am trying to **blur of highest variance point from the image**. I wrote code below. 1st part finds the variance of the image. I checked the resultant variance of an image and it is correct. (I used Lena's image) In 2nd part, I find the highest variance coordinates and send to this Function which finds gaussian blur. When I execute this code, it throws `"C:\Tmp\blur_highest_variance.py", line 66, in sigma=15) numpy.core._exceptions.UFuncTypeError: Cannot cast ufunc 'subtract' output from dtype('float64') to dtype('uint8') with casting rule 'same_kind'`

I tried a few conversions between types but no avail. Can you show me some direction?

ANSWER

Answered 2021-Jun-10 at 18:48The error message tells us the line and the reason for the error:

Traceback (most recent call last):

File "C:\Tmp\blur_highest_variance.py", line 66, in sigma=15)

numpy.core._exceptions.UFuncTypeError: Cannot cast ufunc 'subtract' output from dtype('float64') to dtype('uint8') with casting rule 'same_kind'

It is more simple to debug the code using intermediate variables:

For example, use an intermediate named `gmask`

:

QUESTION

I have the following code:

...ANSWER

Answered 2021-Jun-10 at 00:41I believe this will work:

QUESTION

ANSWER

Answered 2021-Jun-09 at 19:36Since you weren't providing the information I asked for, I tried to write a small test case, seeking to get at the core of your problem.

Mixing `numpy`

and `sympy`

is tricky and somewhat unpredictable. But sometimes `sympy`

symbols can be used in `numpy`

expressions.

QUESTION

I'm trying to calculate the mean, standard deviation, median, first quartile and third quartile of the lognormal distribution that I fit to my histogram. So far I've only been able to calculate the mean, standard deviation and median, based on the formulas I found on Wikipedia, but I don't know how to calculate the first quartile and the third quartile. How could I calculate in Python the first quartile and the third quartile, based on the lognormal distribution?

...ANSWER

Answered 2021-Jun-08 at 20:07Given a log-normal distribution, we want to compute its quantiles. Furthermore, the parameters of the log-normal distribution are estimated from data.

The script below uses OpenTURNS to create the distribution using the `LogNormal`

class. It takes as inputs arguments the mean and standard deviation of the underlying normal distribution. Then we can use the `computeQuantile()`

method to compute the quantiles.

QUESTION

For the following sample data `dat`

, is there a way to calculate `min`

and `max`

while handling `NA`

s. My input is:

ANSWER

Answered 2021-Jun-08 at 11:12The following solution seems to work with the `transform()`

function:

QUESTION

ANSWER

Answered 2021-Jun-08 at 07:34The typical reason for the fail is: wrong starting parameters. The formulae used here are somewhat those that would be used for a measurement statistic, while the data here has to be considered the according histogram. The use of `n`

, hence, does not make sense. It is more like

QUESTION

I am trying to run a code that has a GUI built with pyglet. but it gives this error. I have searched and found that I need to directly set the version of GLSL to be used by the code but I don't know how. would be happy if you helped me out with it.

...ANSWER

Answered 2021-Jun-08 at 07:05well it got solved!
just needed to add the directive `#version 120`

at the beginning of the shader like this:

QUESTION

I have a list with the summaries of different linear regressions. I want to extract the coefficients and p-values of all the elements of the linear regressions and put them in a dataframe (one dataframe per each element of the lm).

For example, to extract the coeffcients of the interecpt I am using the follwing:

...ANSWER

Answered 2021-Jun-07 at 03:10Change your function to -

QUESTION

I simulated data with `nrow=1000`

(individuals) and `ncol=100`

(days) for step lengths according to a Pareto distribution function:

ANSWER

Answered 2021-Jun-07 at 12:17First, it looks like you have an error in your Rayleigh PDF. It should be:

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