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How to get row from R data.frame
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10 years later ---> Using tidyverse we could achieve this simply and borrowing a leaf from Christopher Bottoms. For a better grasp, see slice().
library(tidyverse)
x <- structure(list(A = c(5, 3.5, 3.25, 4.25, 1.5 ),
B = c(4...
Testing if jQueryUI has loaded
... this doesn't work for me. can someone please take a look at this jsfiddle and let me know if i'm doing something wrong. jsfiddle.net/vEvYv/1 I expect the else of my if statement to run because I am not loading jQuery. except, it fails on the first line. Run the page with your browser console...
How to change a git submodule to point to a subfolder?
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I'm afraid the URL for submodules always just points to the repository - you can't specify that you only want a subfolder of a repository, in the same way that git doesn't support "narrow clones" in general.
If you can't live with h...
How to get the top 10 values in postgresql?
...distinct *
from scores
order by score desc
fetch first 10 rows only
SQL Fiddle
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RSpec: how to test if a method was called?
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@wacko oooh, got it, thanks for the clearing that up. I didn't catch it the first time.
– ecoding5
Jun 30 '15 at 3:52
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Replace None with NaN in pandas dataframe
... on the size of your data.
If you want to use this method, you can first identify the object dtype fields in your df and then replace the None:
obj_columns = list(df.select_dtypes(include=['object']).columns.values)
df[obj_columns] = df[obj_columns].replace([None], np.nan)
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How do I close a connection early?
...es a bit more than sending a close header.
OP then confirms: yup, this did the trick: pointing to user-note #71172 (Nov 2006) copied here:
Closing the users browser connection whilst keeping your php script running has been an issue since [PHP] 4.1, when the behaviour of register_shutdown_fun...
How do I create a directory from within Emacs?
...ew directory using Emacs? What commands do I use? (If possible, please provide an example)
6 Answers
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Search for selection in vim
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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Force Screen On
... additional permission, and it is very easy to introduce bugs where you accidentally remain holding the wake lock and thus leave the screen on.
It is far, far better to use the window flag FLAG_KEEP_SCREEN_ON, which you can enable on your activity's window in your onCreate() like this:
@Override
pro...