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Editing the git commit message in GitHub
...rce that push (git push -f). But if already someone pulled your old commit and started a work based on that commit, he would have to rebase his work onto your new commit.
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Split delimited strings in a column and insert as new rows [duplicate]
...parate_rows function as described by @Tif below.
It works so much better, and it allows to "unnest" multiple columns in a single statement:
> head(mydf)
geneid chrom start end strand length gene_count
ENSG00000223972.5 chr1;chr1;chr1;chr1;chr1;chr1;chr1;chr1;chr1 11869;1...
Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
...tation of JSR 303, however, it intelligently picks up on these constraints and translates them into database constraints for you, so you get two for the price of one. @Column(nullable = false) is the JPA way of declaring a column to be not-null. I.e. the former is intended for validation and the lat...
Linux find file names with given string
I'm on Ubuntu, and I'd like to find all files in the current directory and subdirectories whose name contains the string "John". I know that grep can match the content in the files, but I have no idea how to use it with file names. Any help would be appreciated.
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Golang production web application configuration
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Go programs can listen on port 80 and serve HTTP requests directly. Instead, you may want to use a reverse proxy in front of your Go program, so that it listens on port 80 and and connects to your program on port, say, 4000. There are many reason for doing th...
jQuery UI DatePicker to show month year only
...endar all over my app. I want to know if I can use it to display the month and year (May 2010) and not the calendar?
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How do I add an icon to a mingw-gcc compiled executable?
...it as my.rc.
id ICON "path/to/my.ico"
The id mentioned in the above command can be pretty much anything. It doesn't matter unless you want to refer to it in your code. Then run windres as follows:
windres my.rc -O coff -o my.res
Then while building the executable, along with other object files...
Assign pandas dataframe column dtypes
...you have to use the explicit conversions:
pd.to_datetime, pd.to_timedelta and pd.to_numeric
(As mentioned below, no more "magic", convert_objects has been deprecated in 0.17)
df = pd.DataFrame({'x': {0: 'a', 1: 'b'}, 'y': {0: '1', 1: '2'}, 'z': {0: '2018-05-01', 1: '2018-05-02'}})
df.dtypes
x ...
curl_exec() always returns false
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Error checking and handling is the programmer's friend. Check the return values of the initializing and executing cURL functions. curl_error() and curl_errno() will contain further information in case of failure:
try {
$ch = curl_init(...
Finding the max/min value in an array of primitives using Java
...ist() wraps the underlying array, so it should not be too memory intensive and it should not perform a copy on the elements of the array.
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