[Solved] in R, How to sum by flowing row in a data frame

[ad_1] We could use shift from data.table library(data.table) m1 <- na.omit(do.call(cbind, shift(df1$col1, 0:4, type=”lead”))) rowSums(m1*(1:5)[col(m1)]/5) #[1] 13.60 12.20 31.24 25.58 30.48 32.58 44.88 Or another option m1 <- embed(df1$col1,5) rowSums(m1*(5:1)[col(m1)]/5) #[1] 13.60 12.20 31.24 25.58 30.48 32.58 44.88 [ad_2] solved in R, How to sum by flowing row in a data frame

[Solved] Checking if a number is a Simber

[ad_1] Your code has compilation errors. ^ is Binary XOR Operator. You can’t expect it to produce pow(10,i). So replace nmbrs.push_back(((n/10^i) % 10); with nmbrs.push_back(((n/pow(10,i)) % 10); When I was able to remove the compilation errors, i realized your code has logical errors too. As your given definition of simber, int is_simber(int n) should be … Read more

[Solved] How to download and save all PDF from a dynamic web?

[ad_1] You have to make a post http requests with appropriate json parameter. Once you get the response, you have to parse two fields objectId and nombreFichero to use them to build right links to the pdf’s. The following should work: import os import json import requests url=”https://bancaonline.bankinter.com/publico/rs/documentacionPrix/list” base=”https://bancaonline.bankinter.com/publico/DocumentacionPrixGet?doc={}&nameDoc={}” payload = {“cod_categoria”: 2,”cod_familia”: 3,”divisaDestino”: None,”vencimiento”: … Read more

[Solved] SQL Server Loop and Cursors [closed]

[ad_1] SET NOCOUNT ON will prevent a message being returned saying how many rows were updated. In some situations in code this is necessary because the message is interpreted as an additional resultset. There is also some additional overhead with this message. CURSORS are used to perform operations in a procedural fashion instead of the … Read more

[Solved] align text in the middle of a circle with css [duplicate]

[ad_1] As long as you only have one line of text, a simple trick is to set its line-height to the height of the circle: .circle { background: rgba(72, 156, 234, 1); border-radius: 50%; height: 80px; width: 80px; position: relative; box-shadow: 0 0 0 5px #F1F1F1; margin: 10px; color: #6F0; vertical-align: middle; } .text_circle { … Read more

[Solved] Adjacency List for Graphs in C

[ad_1] Your program is causing memory leak. You should use an array of ADI*, not an array of ADI, to store what is returned from adjancencyList(). Using subscripting looks better than incrementing in this case. One more tips is that A = &( A[0] ); does virtually nothing. Also note that they say you shouldn’t … Read more

[Solved] Total sum is NaN – Javascript

[ad_1] Use Unary plus(+) or Number instead of parseInt as parseInt(”) will be evaluated as NaN Use textContent instead of value Note: Use onInput instead of onkeydown function Calculate() { var q = +(document.getElementById(‘quiz’).textContent); var a = +(document.getElementById(‘atten’).textContent); var h = +(document.getElementById(‘home’).textContent); var r = +(document.getElementById(‘reci’).textContent); var m = +(document.getElementById(‘me’).textContent); var grade = q + … Read more

[Solved] Search box placehoder text should change when an option is selected from a drop down list

[ad_1] You need to attach a change event to the select box. In it you grab the text from the selected option and set the placeholder attribute on the search box. var select_designatfirst = $(‘#select_designatfirst’), empSearch = $(‘#empSearch’); select_designatfirst.on(‘change’, function () { empSearch.attr(‘placeholder’, ‘Search ‘ + select_designatfirst.find(‘:selected’).text()); }); jsFiddle example That said, unless the search … Read more

[Solved] Want to find exact 5 strings sentences

[ad_1] In order to match only strings containing 5 words or less, i.e. not any five words in a row, you also need to add anchoring to the beginning and end of the string: ^((?:\w+ ?){1,5})$ Example https://regex101.com/r/pN9nQ0/1 1 [ad_2] solved Want to find exact 5 strings sentences

[Solved] SQL request with JOIN and COUNT

[ad_1] If I am reading your question right, the result table give you the age ID and Period, and then the count of toys per age ID and Period. Here is how you would write that query: SELECT Ages.ID, Ages.Period, IFNULL(sub.cnt,0) AS Count FROM Ages LEFT JOIN (SELECT Toys.age_id, COUNT(*) AS cnt FROM Toys GROUP … Read more

[Solved] Delete duplicate element from sorted linkedlist using recursion in java [closed]

[ad_1] // try this public ListNode removeDuplicateElements(ListNode head) { if (head == null || head.next == null) { return null; } if (head.data.equals(head.next.data)) { ListNode next_next = head.next.next; head.next = null; head.next = next_next; removeDuplicateElements(head); } else { removeDuplicateElements(head.next); } return head; } [ad_2] solved Delete duplicate element from sorted linkedlist using recursion in java … Read more