operator | 8kb drop-in PJAX '' solution for fluid , smooth transitions

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1.8kb drop-in "PJAX" solution for fluid, smooth transitions between pages.

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operator Key Features

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operator Examples and Code Snippets

r Conjugate the gradient operator .

python

Lines of Code : 108

License : Non-SPDX (Apache License 2.0)

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def conjugate_gradient(operator,
                       rhs,
                       preconditioner=None,
                       x=None,
                       tol=1e-5,
                       max_iter=20,
                       name='conjugate_gradie

Initialize the linear operator .

python

Lines of Code : 75

License : Non-SPDX (Apache License 2.0)

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def __init__(self,
               spectrum,
               block_depth,
               input_output_dtype=dtypes.complex64,
               is_non_singular=None,
               is_self_adjoint=None,
               is_positive_definite=None,

Overrides binary operator .

python

Lines of Code : 75

License : Non-SPDX (Apache License 2.0)

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def _OverrideBinaryOperatorHelper(func, op_name, clazz_object=ops.Tensor):
  """Register operators with different tensor and scalar versions.

  If `clazz_object` is `SparseTensor`, assumes `func` takes `(sp_indices,
  sp_values, sp_shape, dense)` an

Community Discussions

Trending Discussions on operator

Primary expression error when defining a vector with ternary operator

Having a SQL statement as WHERE clause in another SQL statement?

Problem validating a string inside a pandas dataframe column

Shorthand object initializer syntax for matching property name

What is the Sobel operator?

How can I use paste0() to access a column from a reactive expression that returns a data frame in r?

Read/write Eigen::Matrix with cv::Filestorage

JAVASCRIPT Problem with regex in the .split() method

Problem with FULLY_CONNECTED op in TF Lite

How to implement a new model

QUESTION

Primary expression error when defining a vector with ternary operator

Asked 2021-Jun-15 at 21:48

I have a simple code where I try to define a vector as one of two initializer lists using a ternary operator:

...

ANSWER

Answered 2021-Jun-15 at 21:48

Because you can't have braces in that context. If you look at cppreference on list initialization, you see that the case inside a ternary operator isn't defined. So it can't be parsed correctly and you get the error you have.

You'd have to use something like this :

Source https://stackoverflow.com/questions/67993769

QUESTION

Having a SQL statement as WHERE clause in another SQL statement?

Asked 2021-Jun-15 at 20:22

Is it possible to have another SQL query as the where statement as I tried below? The following query did not work for me. My goal is to select only the records from NOR_LABOR table which are the ID is greater than the current maximum ID in ALL_LABOR_DETAILS table where work_center column like %NOR%,

...

ANSWER

Answered 2021-Jun-15 at 20:22

From what I understand from your description you are almost there, you just need a minor tweak:

Source https://stackoverflow.com/questions/67992275

QUESTION

Problem validating a string inside a pandas dataframe column

Asked 2021-Jun-15 at 20:15

I'm trying to look for a string inside a dataframe column, but when I try to look for it using the 'in' operator it always returns me 'False', anyone knows why? My dataframe print showing the description is here.

...

ANSWER

Answered 2021-Jun-15 at 19:53

Try:

Source https://stackoverflow.com/questions/67992617

QUESTION

Shorthand object initializer syntax for matching property name

Asked 2021-Jun-15 at 18:36

Sometimes I find myself needing to initialize an object with a property that matches the property of another object. When the property name is the same, I want to be able to use shorthand syntax.

(For the purposes of the examples in this question, I'll just keep the additional properties to a tag: 1 property, and I'll reuse message in subsequent examples as the input/source of the information. I also indicate an extra unwanted property of message because I'm cherry-picking properties and do not intend to just use Object.assign to assign all the properties of message to the result.)

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ANSWER

Answered 2021-Jun-15 at 16:26

The best I have so far is { person: message.person, tag: 1 }.

Is there shorthand initializer syntax to achieve this?

No, this is still they way to go.

hoping that a property name would magically be inferred from person

Source https://stackoverflow.com/questions/67989808

QUESTION

What is the Sobel operator?

Asked 2021-Jun-15 at 18:13

I tried 5 different implementations of the Sobel operator in Python, one of which I implemented myself, and the results are radically different.

My questions is similar to this one, but there are still differences I don't understand with the other implementations.

Is there any agreed on definition of the Sobel operator, and is it always synonymous to "image gradient"?

Even the definition of the Sobel kernel is different from source to source, according to Wikipedia it is [[1, 0, -1],[2, 0, -2],[1, 0, -1]], but according to other sources it is [[-1, 0, 1],[-2, 0, 2],[-1, 0, 1]].

Here is my code where I tried the different techniques:

...

ANSWER

Answered 2021-Jun-15 at 14:22

according to wikipedia it's [[1, 0, -1],[2, 0, -2],[1, 0, 1]] but according to other sources it's [[-1, 0, 1],[-2, 0, 2],[-1, 0, 1]]

Both are used for detecting vertical edges. Difference here is how these kernels mark "left" and "right" edges.

For simplicity sake lets consider 1D example, and let array be

[0, 0, 255, 255, 255]

then if we calculate using padding then

kernel [2, 0, -2] gives [0, -510, -510, 0, 0]
kernel [-2, 0, 2] gives [0, 510, 510, 0, 0]

As you can see abrupt increase in value was marked with negative values by first kernel and positive values by second. Note that is is relevant only if you need to discriminate left vs right edges, when you want just to find vertical edges, you might use any of these 2 aboves and then get absolute value.

Source https://stackoverflow.com/questions/67987368

QUESTION

How can I use paste0() to access a column from a reactive expression that returns a data frame in r?

Asked 2021-Jun-15 at 15:12

I have the following piece of code in a shiny app. My goal is to generate the choices for the "cutFamily2" selectInput widget based on what the user chose for the "machine2" selectInput.

If I use corte2() instead of eval(paste0("corte",2)) on the observerEvent the app runs properly. The problem is that I want to use the paste0() because the integer "2" in eval(paste0("corte",2)) will be an argument of a function (function(data,n)) so I can easily generate corte1, corte2 and so on.

When I run it using eval(paste0("corte",2)) I am getting the "error in $: $ operator is invalid for atomic vectors" and the app won't even run. I tried to use enframe() to convert it to a tibble, then the app runs, but I get a "Unknown or uninitialised column: CutFamily" error and the SelectInput choices will be empty. I also tried [[ instead, but nothing.

Any ideas on how to solve the problem?

...

ANSWER

Answered 2021-Jun-15 at 15:12

You can try this code -

Source https://stackoverflow.com/questions/67978600

QUESTION

Read/write Eigen::Matrix with cv::Filestorage

Asked 2021-Jun-15 at 15:05

According to the OpenCV Docs, we can use cv::FileStorage to read/write custom data structure from/to config files (XML, YAML, JSON):

...

ANSWER

Answered 2021-Jun-15 at 15:05

The issue is due to the intruduction of namespace, indeed you can get a similar issue with this code:

Source https://stackoverflow.com/questions/67985606

QUESTION

JAVASCRIPT Problem with regex in the .split() method

Asked 2021-Jun-15 at 14:30

I have a string formed by number and mathematical operator like "1 + 1 *1" that is the text content of the number appendend on the screen div, I want to form an array of them and then divide it using mathematical operators such as + or - as a divisor, the problem is that when I try to divide them the array is actually divided, except for when the "-" sign is present, in fact if I have as a string "1 + 1 * 1 -1" the result will be an array ["1", "1", "1-1"] while it should be ["1", "1", "1", "1"] Thanks everyone in advance.

...

ANSWER

Answered 2021-Jun-14 at 14:05

Source https://stackoverflow.com/questions/67971468

QUESTION

Problem with FULLY_CONNECTED op in TF Lite

Asked 2021-Jun-15 at 13:22

I'd like to run a simple neural network model which uses Keras on a Rasperry microcontroller. I get a problem when I use a layer. The code is defined like this:

...

ANSWER

Answered 2021-May-25 at 01:08

I had the same problem, man. I want to transplant tflite to the development board of CEVA. There is no problem in compiling. In the process of running, there is also an error in AddBuiltin(full_connect). At present, the only possible situation I guess is that some devices can not support tflite.

Source https://stackoverflow.com/questions/67677228

QUESTION

How to implement a new model

Asked 2021-Jun-15 at 13:18

I have to create an operator in order to implement a new layer with different paddings.

Is it possible to do it?

...

ANSWER

Answered 2021-May-12 at 05:44

TFLite supports Conv1D through wrappring the existing Conv2D op with a Reshape op already. Did you try the conversion? I think your case is already supported by the TensorFlow Lite builtin op set. If not, please file a feature request at the TensorFlow github.

Source https://stackoverflow.com/questions/67481996

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