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R: Creating a column by adding values of two previous columns

I am working in R. I have typed in the command : table(shoppingdata$Identifier, shoppingdata$Coupon) I have the ... is not obvious at all. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Fortran with MPI error

I am working on Fortran code with MPI and introducing the following MPI command call MPI_Gather(nlocal,1, ... compiler is Intel compiler See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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jquery - popup when click link little like stackoverflow inbox in css

I want create a model page which work same like stackoverflow inbox popup. Like in image given below , when ... and bad reputation my profile. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - CSS: corrupt display for lower elements after show upper elements

as you see in my snippet when buttons are hidden => display:none; my display was what i want. but after showing them my ... </li> </div> </ul> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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objective c - ios ARC strong and alloc

I have a question related to ARC. In my interface I have declared a uiwebview as a strong property. Inside my ... Is that code ok under ARC? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - How to open links in new window which is in PDF created by TCPDF

I have tried target="_blank" but nothing happens. Is anybody help for this issue? I need to open links in new tab/ ... I'm using TCPDF 5.9.176 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Give all elements in Class an seperate Id Javascript

so i have an array with 4 images and I use javascript to load them in. Therefore I have created an "img" ... in Javascript How do I do that? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Nearest next even hour

I'm looking for a way to get the nearest even hour and the associating day. Getting the hour haven't really been a problem ... 'G')] . ':01:00'; See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Is it possible to have class without variables and with methods?

I'm solving this problem with polymorphism. I need to print out verse of the song with 5 animals.The verse is repeated ... { a.PrintSong(); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Make MD5 raw in JavaScript

I am converting PHP code to Node JS. I am facing a issue with MD5 binary raw that is MD5('String',true) ... true parameter but it's not working. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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docusignapi - When will the docusign api implement CORS or JSONP?

My company is building a browser-javascript app. We want to use the docusign api via browser javascript without ... docusign. Thanks a lot! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Why are my buttons not doing anything when clicked on?

I am currently trying to build a site that has three buttons, a Facebook Sharing one, a Twitter one, and another one ... can't figure it out... See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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apache spark - How to make a dataframe for kafka streaming using PySpark?

I am using kafka version 2.11-1.0.1 and Spark version 2.0.2. I have to make a dataframe for ... dataframe for kafkaStream? Thanks In Advance See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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C# ToString("C") converting the decimal to currency value pound instead of dollar

I am converting a double value to currency string format and it gets converted string with pound symbol currency. Is it culture dependent? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - How to train data using tensorflow ocr?

I am new to tensorflow, so i am little bit confuse in tensorflow there are multiple model to perform ... os.remove(CROP_IMAGE_URL) return text See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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When Starting up Eclipse C/C++ it doesn't open but gives a error. Java was started but returned exit code=13

I just wanted to start learning programming in C so i downloaded Eclips C/C++ but when i try to launch it ... lot but could find the answer. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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objective c - How to persist objects between classes

I have 6 categories that contain unique data; I have defined a class that looks like this: @interface ... answers my specific question. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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regarding ObservableCollection in c#

i found a piece of code that use ObservableCollection but they can use list or any other collection related ... discuss in detail. thanks See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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291 views

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r - Add regression line legend to geom_abline

I've coded this: ggplot() + geom_point(mapping = aes(x = X, y = y)) + geom_abline(intercept = -0.9930872, ... t get it to work! Any suggestions? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Javascript equation producing incorrect value

I have a Javascript function which returns a result based on variables passed to it. It is giving incorrect values during ... [param][j].val2)); See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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view - how to solve django: UnboundLocalError

I have the given view and template code, when i try to run this code i get the following errors.when i searched ... </form> </body> </html> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c - Is it possible change value of the const global variable?

Is it possible to change the value of const global or extern global variable? via pointer? you can change the value of const local variable. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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r - Return value by key

Is there a shorter way to return the values by key in the order, which is given by elements of key? vars<-c(" ... ,vars[names(vars) %in% k]) ret See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Serialise List<Dictionary<String,Object>>

I have one List of Dictionary, I want to serialize in Json in c# protected List<Dictionary<String, Object>> ... of dictionary, some proposal? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Remove value from database using Cloud Functions

I have the following data structure: How do I completely remove 'days' using a Cloud Function? My current code: ... doesn't get removed }); See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to parse a JSON object from ajax call in Java Script

I am making an Ajax call in my JSP which is recieving a JSON response. Running alert('Ajax Response ' + respArr) ... ].data or respArr[0].chart? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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366 views

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PHP Deprecated: Unparenthesized

I found this debug error: PHP Deprecated: Unparenthesized a ? b : c ? d : e is deprecated. Use either (a ... me where to place the parenthesis? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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300 views

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RegEx for a 6 character long string that consists of four letters followed by 2 numbers

I am able to get individual RegEx for each of the following conditions: string is 6 characters long first 4 ... a valid match would be xqwl82 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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