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What does %~d0 mean in a Windows batch file?
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The magic variables %n contains the arguments used to invoke the file: %0 is the path to the bat-file itself, %1 is the first argument after, %2 is the second and so on.
Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the...
LINQ with groupby and count
... .OrderBy(x => x.Metric))
{
Console.WriteLine("{0} {1}", line.Metric, line.Count);
}
> This was a brilliantly quick reply but I'm having a bit of an issue with the first line, specifically "data.groupby(info=>info.metric)"
I'm assuming you already have a list/array...
Java 8 forEach with index [duplicate]
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170
Since you are iterating over an indexable collection (lists, etc.), I presume that you can then ...
How to read data when some numbers contain commas as thousand separator?
...", and then convert the string to numeric using as.numeric:
y <- c("1,200","20,000","100","12,111")
as.numeric(gsub(",", "", y))
# [1] 1200 20000 100 12111
This was also answered previously on R-Help (and in Q2 here).
Alternatively, you can pre-process the file, for instance with sed in unix...
How to write DataFrame to postgres table?
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Starting from pandas 0.14 (released end of May 2014), postgresql is supported. The sql module now uses sqlalchemy to support different database flavors. You can pass a sqlalchemy engine for a postgresql database (see docs). E.g.:
from sqlalchemy...
How to avoid scientific notation for large numbers in JavaScript?
...tific notation if the number is >= 1e21 and has a maximum precision of 20. Other than that, you can roll your own, but it will be messy.
function toFixed(x) {
if (Math.abs(x) < 1.0) {
var e = parseInt(x.toString().split('e-')[1]);
if (e) {
x *= Math.pow(10,e-1);
x = ...
Javascript Split string on UpperCase Characters
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answered Oct 25 '11 at 11:05
TeneffTeneff
20.7k88 gold badges4747 silver badges7777 bronze badges
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cannot find zip-align when publishing app
...f Android SDK Tools (23 which was released today) and SDK Platform-tools (20 which was also released today). I got an APK out of it, but if I tried to upload it to Google Play I got an error complaining that it is not zip aligned.
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Checking if a string can be converted to float in Python
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Richard Simões
10.6k44 gold badges3737 silver badges4949 bronze badges
answered Apr 9 '09 at 21:55
dbrdbr
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What is the best way to determine the number of days in a month with JavaScript?
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201
function daysInMonth (month, year) { // Use 1 for January, 2 for February, etc.
return n...