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python - How to apply a disc shaped mask to a NumPy array?

I have an array like this: >>> np.ones((8,8)) array([[ 1., 1., 1., 1., 1., 1., 1., 1.], ... ://stackoverflow.com/questions/8647024/how-to-apply-a-disc-shaped-mask-to-a-numpy-array...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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260 views

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Using Google Maps API to get travel time data

(Closed.) This question does not meet Stack Overflow guidelines. It is not currently accepting answers. question from: ... /1042885/using-google-maps-api-to-get-travel-time-data...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.7k views

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rabbitmq - C# Convert ReadOnlyMemory<byte> to byte[]

Given ReadOnlyMemory Struct I want to convert the stream into a string I have the following code: var ... .com/questions/61374796/c-sharp-convert-readonlymemorybyte-to-byte...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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153 views

1 answer

How to convert a date in Excel to ISO 8601 format

I am trying to save a date format in YYYY-MM-DD, for example, 2014-09-01 as a CSV file, but the format ... /questions/27388761/how-to-convert-a-date-in-excel-to-iso-8601-format...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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152 views

1 answer

Removing multiple columns from R data.table with parameter for columns to remove

I'm trying to manipulate a number of data.tables in similar ways, and would like to write a function to ... -columns-from-r-data-table-with-parameter-for-columns-to-remove...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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234 views

1 answer

php - Symfony2: Redirecting to last route and flash a message?

I'm having a small problem when trying to flash a message and redirect the user back to the previous page ... /11892080/symfony2-redirecting-to-last-route-and-flash-a-message...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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464 views

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sqlite - Opening sqlite3 database from python in read-only mode

While using sqlite3 from C/C++ I learned that it has a open-in-read-only mode option, which is very ... /questions/10205744/opening-sqlite3-database-from-python-in-read-only-mode...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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60 views

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javascript - Compare 'e.target' to a jQuery object

What I want to do: ( clickedObject === someDiv ) //returns true or false What I tried ( $(e.target) = ... ://stackoverflow.com/questions/8606269/compare-e-target-to-a-jquery-object...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What is preferred in Objective-c dot notation or square bracket notation?

I'm reading a book - Big Nerd Ranch iOS Programming. It says that dot notation is not recommended as it ... -is-preferred-in-objective-c-dot-notation-or-square-bracket-notation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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509 views

1 answer

scala - How to find spark RDD/Dataframe size?

I know how to find the file size in scala.But how to find a RDD/dataframe size in spark? Scala: ... /stackoverflow.com/questions/35008123/how-to-find-spark-rdd-dataframe-size...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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284 views

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intellij idea - Could not install Gradle distribution from 'https://services.gradle.org/distributions/gradle-2.1-all.zip'

I am a greenhorn in gradle and i just tried to create a new Android Gradle Project in IntelliJ. After ... -not-install-gradle-distribution-from-https-services-gradle-org-distribu...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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220 views

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r - How to hide code in RMarkdown, with option to see it

I'm writing an RMarkdown document in which I'd like to re-run some chunks (5 to 9). There's no need to ... /questions/14127321/how-to-hide-code-in-rmarkdown-with-option-to-see-it...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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140 views

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Retrieving binary file content using Javascript, base64 encode it and reverse-decode it using Python

I'm trying to download a binary file using XMLHttpRequest (using a recent Webkit) and base64-encode its contents ... -file-content-using-javascript-base64-encode-it-and-reverse-de...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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106 views

1 answer

c# - Is it possible to handle exceptions within LINQ queries?

Example: myEnumerable.Select(a => ThisMethodMayThrowExceptions(a)); How to make it work even if it throws ... 1294251/is-it-possible-to-handle-exceptions-within-linq-queries...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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81 views

1 answer

ios - Should we commit pod files to version control system (GIT or SVN)

So far I was working on an app and my Team Lead said not to commit the pod files and I just followed his ... /should-we-commit-pod-files-to-version-control-system-git-or-svn...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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314 views

1 answer

Android Emulator "To Start Android, enter your password" and it reminds me the password is wrong"

I just installed Android Studio, when I run the Android Emulator it says: "To Start Android, enter your password" and ... -start-android-enter-your-password-and-it-reminds-me-the-p...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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162 views

1 answer

java - HttpServletRequest UTF-8 Encoding

(This question already has answers here): question from:https://stackoverflow.com/questions/16527576/httpservletrequest-utf-8-encoding...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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174 views

1 answer

python - Sort a list of tuples depending on two elements

(This question already has answers here): question from:https://stackoverflow.com/questions/9376384/sort-a-list-of-tuples-depending-on-two-elements...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

1 answer

Format an Excel column (or cell) as Text in C#?

I am losing the leading zeros when I copy values from a datatable to an Excel sheet. That's because probably Excel ... /2067926/format-an-excel-column-or-cell-as-text-in-c...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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140 views

1 answer

android - Can't convert to color: type=0x2 error when inflating layout in fragment but only on Samsung Galaxy and Note 4

I am working on a simple app with an activity and i use fragments.One screen with some elements. When i compile ... -color-type-0x2-error-when-inflating-layout-in-fragment-but-onl...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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102 views

1 answer

javascript - .js.erb VS .js

What is the advantage to putting you javascript for your rails app into a .js.erb file instead of just throwing ... from:https://stackoverflow.com/questions/1127697/js-erb-vs-js...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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176 views

1 answer

python - Add column sum as new column in PySpark dataframe

I'm using PySpark and I have a Spark dataframe with a bunch of numeric columns. I want to add a column ... com/questions/31955309/add-column-sum-as-new-column-in-pyspark-dataframe...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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348 views

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angularjs - Karma throws error: Can not load "ng-html2js", it is not registered

I'm getting an error when I run karma start: $ karma start INFO [karma]: Karma v0.10.2 server started at http ... /karma-throws-error-can-not-load-ng-html2js-it-is-not-registered...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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395 views

1 answer

html - JavaScript How to Dynamically Move Div by Clicking and Dragging

Okay it would seem like it should be simple. I need to take an already existing div and move it ... 24050738/javascript-how-to-dynamically-move-div-by-clicking-and-dragging...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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124 views

1 answer

java - Replacing a full ORM (JPA/Hibernate) by a lighter solution : Recommended patterns for load/save?

I'm developing a new Java web application and I'm exploring new ways (new for me!) to persist the data. ... -a-full-orm-jpa-hibernate-by-a-lighter-solution-recommended-pattern...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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266 views

1 answer

No resource identifier found for attribute 'parentActivityName' in package 'android'

I'm trying to complete this tutorial from the Android Page http://developer.android.com/training/ ... resource-identifier-found-for-attribute-parentactivityname-in-package-andr...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

1 answer

list - How to convert BASE64 string into Image with Flutter?

I'm converting images saved in my Firebase database to Base64 and would like to decode and encode. I've ... questions/46145472/how-to-convert-base64-string-into-image-with-flutter...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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170 views

1 answer

sql - Finding similar strings with PostgreSQL quickly

I need to create a ranking of similar strings in a table. I have the following table create ... .com/questions/11249635/finding-similar-strings-with-postgresql-quickly...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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