collapse

问题 Define df<-read.table(textConnection('egg 1 20 a egg 2 30 a jap 3 50 b jap 1 60 b')) s.t. > df V1 V2 V3 V4 1 egg 1 20 a 2 egg 2 30 a 3 jap 3 50 b 4 jap 1 60 b My data has no factors so I convert factors to characters: > df$V1 <- as.character(df$V1) > df$V4 <- as.character(df$V4) I would like to "collapse" the data frame by V1 keeping: The max of V2 The mean of V3 The mode of V4 (this value does not actually change within V1 groups, so first, last, etc might do also.) Please note this is a

问题 The following problem: I have the data frame data1 with a variable including several entries: data1 <- data.frame(v1 = c("test, test, bird", "bird, bird", "car")) Now I want to remove duplicated entries in each row. The result should look like this: data1.final <- data.frame(v1 = c("test, bird", "bird", "car")) I tried this: data1$ID <- 1:nrow(data1) data1$v1 <- as.character(data1$v1) data1 <- split(data1, data1$ID) reduce.words <- function(x) { d <- unlist(strsplit(x$v1, split=" ")) d <-

问题 The following problem: I have the data frame data1 with a variable including several entries: data1 <- data.frame(v1 = c("test, test, bird", "bird, bird", "car")) Now I want to remove duplicated entries in each row. The result should look like this: data1.final <- data.frame(v1 = c("test, bird", "bird", "car")) I tried this: data1$ID <- 1:nrow(data1) data1$v1 <- as.character(data1$v1) data1 <- split(data1, data1$ID) reduce.words <- function(x) { d <- unlist(strsplit(x$v1, split=" ")) d <-

问题 I am actually facing some problems to get an bootstrap accordion working inside a dropdown menu. I googled a lot and also find some StackOverflow threads here, but they are several years old and depending on bootstrap 3 or bootstrap 2. Like this one here: Twitter Bootstrap: How to create a dropdown button with an accordion inside it? Can anybody help me here or have a solution for a working accordion inside a bootstrap dropdown menu. <nav class="navbar navbar-expand-md"> <ul class="navbar-nav

问题 I have a collapsable menu on a website I'm developing, but the collapse is only toggling through once. I click "MENU" the menu expands, click it again, the menu closes, but won't continue toggling. Here is a link to my development server. Just resize the browser window until the "MENU" button shows up and click it. http://www.corporateprdev.com/ymcakpt Here is my menu structure: <div class="navbar navbar-fixed-top"> <div class="navbar-inner"> <div class="container"> <a class="btn btn-navbar"

问题 Both of reduction and collapse clauses in OMP confuses me, some points raised popped into my head Why reduction doesn't work with minus? as in the limitation listed here Is there any work around to achieve minus? How does a unary operator work, i.e. x++ or x--? is the -- or ++ applied to each partial result? or only once at the creation of the global result? both cases are totally different. About the collapse.. could we apply collapse on a nested loops but have some lines of code in between

问题 My fixed navbar works fine when I resize my computer screen to below 980px. Once my screen is 979px or less the navbar collapse kicks in and works perfectly. However, when I push code up to Heroku and load the site on my iPhone 4S, not only does my navbar not collapse, but it looks a bit different -- the float right drops underneath the logo causing it to look weird. Here is my custom.css.scss file: @import "bootstrap"; @import "bootstrap-responsive"; /* universal */ html { overflow-y: scroll

问题 For a dataset like this Incident.ID.. date product INCFI0000029582 2014-09-25 08:39:45 foo INCFI0000029582 2014-09-25 08:39:48 bar INCFI0000029582 2014-09-25 08:40:44 foo INCFI0000029582 2014-10-10 23:04:00 foo INCFI0000029587 2014-09-25 08:33:32 bar INCFI0000029587 2014-09-25 08:34:41 bar INCFI0000029587 2014-09-25 08:35:24 bar INCFI0000029587 2014-10-10 23:04:00 foo df <- structure(list(Incident.ID.. = c("INCFI0000029582", "INCFI0000029582", "INCFI0000029582", "INCFI0000029582",

问题 I am trying to find a jQuery solution to show the first 3 items on each menu in a left-hand navigation filter with a 'Show more' and 'Show less' link enabling users to expand the list. I have searched for a solution but most expand/collapse scripts completley hide the layer whilst others show an Expand (Show more) link but do not toggle to show a Collapse (Show less) link. My menus are coded as follows. <div id="menu1"> <ul class="term-list"> <li class="term-item ">Item 1</li> <li class="term

问题 I'm trying to implement a 100% height accordion using the Twitter Bootstrap collapse component, exactly as described in this question. I'm manually setting the heights of the .accordion-inner elements as described in this answer. However I'm experiencing "bouncy" behaviour when expanding/collapsing the panels. I have removed all padding/margin/border from the .accordion-inner elements to eliminate that possibility. It is most noticeable in IE10, however the problem is also evident in Chrome.