大约有 6,500 项符合查询结果（耗时：0.0224秒） [XML]
How to find the largest file in a directory and its subdirectories?
...
The first solution didn't work on OS X for me, so i ended up using a quick hack to filter out the directories from the third solution: du -am . | sort -nr | grep '\..*\.' | head. The m is to display file size in megabytes and used grep to show lines with at l...
Android LocationClient class is deprecated but used in documentation
...ort android.location.Location;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.Loca...
filter for complete cases in data.frame using dplyr (case-wise deletion)
... passing it to the filter.
Another benchmark with more columns:
set.seed(123)
x <- sample(1e5,1e5*26, replace = TRUE)
x[sample(seq_along(x), 1e3)] <- NA
df <- as.data.frame(matrix(x, ncol = 26))
library(microbenchmark)
microbenchmark(
na.omit = {df %>% na.omit},
filter.anonymous = ...
How can I explicitly free memory in Python?
... best way for the subprocesses to accumulate some results and yet ensure those results are available to the main process is to use semi-temporary files (by semi-temporary I mean, NOT the kind of files that automatically go away when closed, just ordinary files that you explicitly delete when you're ...
This Handler class should be static or leaks might occur: IncomingHandler
...lass implements MessageHandler {
private static final int DO_IT_MSG = 123;
private MainThreadHandler<MyClass> mHandler = new MainThreadHandler<>(this);
private void start() {
// Do it in 5 seconds.
mHandler.sendEmptyMessageDelayed(DO_IT_MSG, 5 * 1000);
...
Why does Google +1 record my mouse movements? [closed]
...
123
+500
It app...
How do I convert a pandas Series or index to a Numpy array? [duplicate]
...stead, use to_numpy(copy=True);
v = df.index.to_numpy(copy=True)
v[-1] = -123
df
A B
a 1 2
b 4 5
Note that this function also works for DataFrames (while .array does not).
array Attribute
This attribute returns an ExtensionArray object that backs the Index/Series.
pd.__version__
# ...
How can I find the number of arguments of a Python function?
... get defaults=(None,) you get defaults=None.
– Seanny123
Jul 4 '18 at 16:42
si there a way to get the original paramet...
How can I stop .gitignore from appearing in the list of untracked files?
...
The .gitignore file should be in your repository, so it should indeed be added and committed in, as git status suggests. It has to be a part of the repository tree, so that changes to it can be merged and so on.
So, add it to your repository, it should not be gitig...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...nt the date independently of the region day/month order, you can use "WMIC os GET LocalDateTime" as a source, since it's in ISO order:
@echo off
for /F "usebackq tokens=1,2 delims==" %%i in (`wmic os get LocalDateTime /VALUE 2^>NUL`) do if '.%%i.'=='.LocalDateTime.' set ldt=%%j
set ldt=%ldt:~0,4...