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Combine two or more columns in a dataframe into a new column with a new name
... already mentioned in comments by Uwe and UseR, a general solution in the tidyverse format would be to use the command unite:
library(tidyverse)
n = c(2, 3, 5)
s = c("aa", "bb", "cc")
b = c(TRUE, FALSE, TRUE)
df = data.frame(n, s, b) %>%
unite(x, c(n, s), sep = " ", remove = FALSE)
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Is there any free OCR library for Android? [closed]
I'm looking for a Java OCR that runs on Android, however Asprise doesn't seem to be a platform independent OCR. is there any opensource/free Java OCR I can use for android application development?
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Capturing TAB key in text box [closed]
...IE, you have to return false from the event handle. The JQuery library provides a preventDefault method on its event object that works in IE and FF.
<body>
<input type="text" id="myInput">
<script type="text/javascript">
var myInput = document.getElementById("myInput");
if...
Can I avoid the native fullscreen video player with HTML5 on iPhone or android?
... JavaScript code that renders other content synchronized with the running video. It works great in desktop browsers: Firefox, Chrome, and Safari. On an iPhone or a DroidX, the native video player pops up and takes over the screen, thus obscuring the other dynamic content that I want to display simul...
Convert Newtonsoft.Json.Linq.JArray to a list of specific object type
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You'll also see this error If you accidentally use the non-generic JsonConvert.DeserializeObject(value) instead of JsonConvert.DeserializeObject<T>(value)
– Chad Hedgcock
Dec 26 '19 at 22:50
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Can I Install Laravel without using Composer?
... Unfortunately, many of my clients are on shared hosting that does not provide it, and I did not think that it would work. Can updates be performed using commands from a PHP script?
– Mike Rockétt
Apr 11 '13 at 5:47
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Video auto play is not working in Safari and Chrome desktop browser
I spent quite a lot of time trying to figure out why video embedded like here:
21 Answers
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Removing index column in pandas when reading a csv
... variable "efficiency" the index column is also tacked on. How can I get rid of the index column?
7 Answers
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DataSet panel (Report Data) in SSRS designer is gone
...pent over 30mins looking for this. Funny how something so essential is so hidden. One would think it would be placed under View or Report menus without having to select the report. If the UI has to be dumbed down let it be dumbed down all the way
– user919426
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Add new value to an existing array in JavaScript [duplicate]
... answered Jan 3 '10 at 23:24
David HellsingDavid Hellsing
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