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问题 Let's take a PostgreSQL DB with the following structure: (all the relations from top to down are OneToMany ) Where a Brandlift always has exactly 2 brandlift_question each having 1 brandlift_answer (itself having many brandlift_answer_content ) by brandlift_respondent Goal: Given a 'brand' (let's call it the "flagship brand") and a brandlift.campaign_id , for each brand of this brandlift , retrieve by respondent segment , the count of brand.id = 'answer_content.brand_id' of the second (right)

问题 I have a column of 50k rows of tweets named text from a csv file (the tweets consists of sentences, phrases etc). I'm trying to count frequency of several words in that column. Is there an easier way to do it vs what I'm doing below? # Reading my file tweets <- read.csv('coffee.csv', header=TRUE) # Doing a grepl per word (This is hard because I need to look for many words one by one) coffee <- grepl("coffee", text$tweets, ignore.case=TRUE) mugs <- grepl("mugs", text$tweets, ignore.case=TRUE)

问题 I have a column of 50k rows of tweets named text from a csv file (the tweets consists of sentences, phrases etc). I'm trying to count frequency of several words in that column. Is there an easier way to do it vs what I'm doing below? # Reading my file tweets <- read.csv('coffee.csv', header=TRUE) # Doing a grepl per word (This is hard because I need to look for many words one by one) coffee <- grepl("coffee", text$tweets, ignore.case=TRUE) mugs <- grepl("mugs", text$tweets, ignore.case=TRUE)

问题 I have an XML that contains workers and amounts. In the output, the file will contain lines for a worker - one line if he has EX and one line if he has ER. He has EX if he has amount1 in the xml file, and ER if he has amount2. This works perfectly fine in the my current XSLT. The main issue is on how to properly get the correct total number of rows and the sum of all amounts (both amount1 and amount2) after grouping them, and should be added in the header. Here's the sample XML: <Report_Data>

问题 I used the function str_word_count to count how many ARABIC words are in a text, but it returns zero: $sentence = 'بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ'; $countSentence = str_word_count($sentence); echo 'Total words '.$countSentence.'<br />'; Thanks in advance 回答1: Try to use this function if (!function_exists('utf8_str_word_count')){ function utf8_str_word_count($string, $format = 0, $charlist = null) { if ($charlist === null) { $regex = '/\\pL[\\pL\\p{Mn}\'-]*/u'; } else { $split = array

问题 I have a dataframe of items with a certain number of different events which occur at different times. e.g. say I had a times of events (goal, corner, red card etc...) in various games of football. I want to count the number of each events which occurred before a certain time for each team in each game (where the time is different for each game). So I could have a dataframe of events (where C is corner, G is goal and R is red card) as follows: events <- data.frame( game_id = c(1, 1, 1, 1, 1, 1

问题 I have a dataframe of items with a certain number of different events which occur at different times. e.g. say I had a times of events (goal, corner, red card etc...) in various games of football. I want to count the number of each events which occurred before a certain time for each team in each game (where the time is different for each game). So I could have a dataframe of events (where C is corner, G is goal and R is red card) as follows: events <- data.frame( game_id = c(1, 1, 1, 1, 1, 1

问题 I have two data frames. Below are samples but should be easily reproducible for illustration. df1 <- data.frame(School = c("Omaha South", "Omaha Central", "Grand Island"), Enrollment = c(2166, 2051, 1982)) df2 <- data.frame('Away Score' = c(25, 57, 76), 'Away Team' = c("Omaha South", "Omaha Central", "Grand Island"), 'Away Score' = c(52, 88, 69), 'Away Team' = c("Omaha Central", "Grand Island", "Omaha South"), Date = c("1/11/2020", "1/12/2020", "1/13/2020"), Winner = c("Omaha Central", "Grand

问题 I tried the python codes from the article of Rasha Ashraf "Scraping EDGAR with Python". He used urllib2 which is now invalid in python 3, I guess. Thus, I changed it into urllib. I could bring the following Edgar web page. However, the number of word counting resulted in 0 no matter how I tried to fix the codes. Please help me to fix this problem. FYI, I manually check on the URL page so that "ADDRESS", "TYPE", and "transaction" occur 5 times, 9 times, and 49 times each. Nevertheless, my

问题 Here is Sample Data and Schemas CREATE TABLE [dbo].[Customer]( [Id] [int] IDENTITY(1,1) NOT NULL, [Name] [nvarchar](500) NOT NULL, [IsDelete] [bit] NOT NULL, CONSTRAINT [PK_Customer] PRIMARY KEY CLUSTERED ( [Id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO CREATE TABLE [dbo].[Invoice]([Id] [int] IDENTITY(1,1) NOT NULL,[CustomerId] [int] NOT NULL, [Amount] [decimal](18, 2) NOT NULL,