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Quickly reading very large tables as dataframes
...are a couple of simple things to try, whether you use read.table or scan.
Set nrows=the number of records in your data (nmax in scan).
Make sure that comment.char="" to turn off interpretation of comments.
Explicitly define the classes of each column using colClasses in read.table.
Setting multi...
Inserting HTML into a div
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
String.format() to format double in java
...
If you want to format it with manually set symbols, use this:
DecimalFormatSymbols decimalFormatSymbols = new DecimalFormatSymbols();
decimalFormatSymbols.setDecimalSeparator('.');
decimalFormatSymbols.setGroupingSeparator(',');
DecimalFormat decimalFormat = new ...
Best way to represent a fraction in Java?
I'm trying to work with fractions in Java.
26 Answers
26
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Generating v5 UUID. What is name and namespace?
...NameSpace_URL: {6ba7b811-9dad-11d1-80b4-00c04fd430c8}
NameSpace_OID: {6ba7b812-9dad-11d1-80b4-00c04fd430c8}
NameSpace_X500:{6ba7b814-9dad-11d1-80b4-00c04fd430c8}
So, you could hash together:
StackOverflowDnsUUID = sha1(Namespace_DNS + "stackoverflow.com");
StackOverflowUrlUUID = sha1(Namespace_URL ...
Truncating floats in Python
I want to remove digits from a float to have a fixed number of digits after the dot, like:
29 Answers
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git reset --hard HEAD leaves untracked files behind
When I run git reset --hard HEAD , it's supposed to reset to a pristine version of what you pulled, as I understand it. Unfortunately, it leaves files lying around, as a git status shows a big list of untracked files.
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How to exit a 'git status' list in a terminal?
...er used by git is selected by core.pager configuration variable (if it is set), then GIT_PAGER enviroment variable, then PAGER environment variable, then less as fallback.
– Jakub Narębski
Nov 8 '09 at 14:49
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Difference between Divide and Conquer Algo and Dynamic Programming
What is the difference between Divide and Conquer Algorithms and Dynamic Programming Algorithms? How are the two terms different? I do not understand the difference between them.
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User recognition without cookies or local storage
...er Print
- Installed Plugins (people often have varied, somewhat unique sets of plugins)
Cached Images (people sometimes delete their cookies but leave cached images)
Using Blobs
URL(s) (browser history or cookies may contain unique user id's in URLs, such as https://stackoverflow.com/users/1226...