multiple-columns

Change values in multiple columns of a dataframe using a lookup table

烈酒焚心 提交于 2019-11-26 21:52:37
问题 I am trying to change the value of a number of columns at once using a lookup table. They all use the same lookup table. I know how to do this for just one column -- I'd just use a merge , but am having trouble with multiple columns. Below is an example dataframe and an example lookup table. My actual data is much larger (~10K columns with 8 rows). example <- data.frame(a = seq(1,5), b = seq(5,1), c=c(1,4,3,2,5)) lookup <- data.frame(number = seq(1,5), letter = LETTERS[seq(1,5)]) Ideally, I

Scrolling a flexbox with overflowing content

强颜欢笑 提交于 2019-11-26 21:08:45
Here's the code I'm using to achieve the above layout: .header { height: 50px; } .body { position: absolute; top: 50px; right: 0; bottom: 0; left: 0; display: flex; } .sidebar { width: 140px; } .main { flex: 1; display: flex; flex-direction: column; } .content { flex: 1; display: flex; } .column { padding: 20px; border-right: 1px solid #999; } <div class="header">Main header</div> <div class="body"> <div class="sidebar">Sidebar</div> <div class="main"> <div class="page-header">Page Header. Content columns are below.</div> <div class="content"> <div class="column">Column 1</div> <div class=

How to get css3 multi-column count in Javascript

风流意气都作罢 提交于 2019-11-26 21:00:30
问题 We're using the new css3 multi-column layout properties to get our text into newspaper columns. Each column gets a fixed width, and the column-count defaults to "auto", which means that the browser decides how many columns there are. How do we get the actual number of columns as an integer in Javascript? If we query the css "column-count" (or -moz-column-count) we get either "auto" or a blank as a result. 回答1: The secret is to put a small marker at the end of the content. You can

Matching multiple columns on different data frames and getting other column as result

有些话、适合烂在心里 提交于 2019-11-26 20:57:34
问题 I got two big data frames, one ( df1 ) has this structure chr init 1 12 25289552 2 3 180418785 3 3 180434779 The other ( df2 ) has this V1 V2 V3 10 1 69094 medium 11 1 69094 medium 12 12 25289552 high 13 1 69095 medium 14 3 180418785 medium 15 3 180434779 low What I'm trying to do is to add the column V3 of df2 to df1 , to get the info of the mutation chr init Mut 1 12 25289552 high 2 3 180418785 medium 3 3 180434779 low I'm trying loading both into R and then doing a for loop using match but

How to Customize Bootstrap Column Widths?

不想你离开。 提交于 2019-11-26 19:58:36
问题 I have this, but I feel 4 is too big for my sidebar width and 3 is too small (it has to add up to 12). <div class="col-md-8"> <div class="col-md-4"> I tried this but it doesn't work: <div class="col-md-8.5"> <div class="col-md-3.5"> Is there another way to get a similar outcome? Thanks for your help! 回答1: To expand on @isherwood's answer, here is the complete code for creating custom -sm- widths in Bootstrap 3.3 In general you want to search for an existing column width (say col-sm-3 ) and

Splitting multiple columns into rows in pandas dataframe

陌路散爱 提交于 2019-11-26 18:22:46
问题 I have a pandas dataframe as follows: ticker account value date aa assets 100,200 20121231, 20131231 bb liabilities 50, 150 20141231, 20131231 I would like to split df['value'] and df['date'] so that the dataframe looks like this: ticker account value date aa assets 100 20121231 aa assets 200 20131231 bb liabilities 50 20141231 bb liabilities 150 20131231 Would greatly appreciate any help. 回答1: You can first split columns, create Series by stack and remove whitespaces by strip: s1 = df.value

mysqli_fetch_array while loop columns

社会主义新天地 提交于 2019-11-26 16:44:06
Should be pretty basic, but I can't get it to work. I have this code to iterate over a mysqli query: while($row = mysqli_fetch_array($result)) { $posts[] = $row['post_id'].$row['post_title'].$row['content']; } It works and returns: Variable #1: (Array, 3 elements) ↵ 0 (String): "4testtest" (9 characters) 1 (String): "1Hello world!Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!" (99 characters) 2 (String): "2Sample PageThis is an example page. It's different from a blog post because it will stay in one place and will show up in your site navigation (in

LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?

浪子不回头ぞ 提交于 2019-11-26 15:46:47
Given: A table named TABLE_1 with the following columns: ID ColumnA ColumnB ColumnC I have SQL query where TABLE_1 joins on itself twice based off of ColumnA , ColumnB , ColumnC . The query might look something like this: Select t1.ID, t2.ID, t3.ID From TABLE_1 t1 Left Join TABLE_1 t2 On t1.ColumnA = t2.ColumnA And t1.ColumnB = t2.ColumnB And t1.ColumnC = t2.ColumnC Left Join TABLE_1 t3 On t2.ColumnA = t3.ColumnA And t2.ColumnB = t3.ColumnB And t2.ColumnC = t3.ColumnC ... and query continues on etc. Problem: I need that Query to be rewritten in LINQ. I've tried taking a stab at it: var query =

Create a Masonry grid with flexbox (or other CSS)

倾然丶 夕夏残阳落幕 提交于 2019-11-26 15:30:26
I would like to achieve a grid effect in CSS with elements that all have the same width in size but not in height. I would like the element underneath to be always at 50px of the bottom one, whatever is next. I tried with floats, but that bug. So I tried with Flex, but it still does not do what I want. .container display: flex flex-wrap wrap align-content flex-start align-items flex-start What I would like: What I have: Try the new CSS Grid Layout : grid-container { display: grid; /* 1 */ grid-auto-rows: 50px; /* 2 */ grid-gap: 10px; /* 3 */ grid-template-columns: repeat(auto-fill, minmax(30%,

How to create equal height columns in pure CSS [duplicate]

强颜欢笑 提交于 2019-11-26 14:36:23
This question already has an answer here: CSS - Equal Height Columns? 10 answers How to get your div to reach all the way down? How to fill up the vertical space of parent div? How to get equal length columns without using background images? I spent a couple days googling and dissecting code to understand how to accomplish equal length columns as easy and efficient as possible. This is the answer I came up with and I wanted to share this knowledge with the community copy and paste style in a little tutorial. For those that think this is a duplicate, it is not. I was inspired by several