大约有 43,000 项符合查询结果（耗时：0.0646秒） [XML]
For each row return the column name of the largest value
...s.method = "first")) %>% # or 'last'
filter(dept_rank == 1) %>%
select(-dept_rank)
# A tibble: 3 x 3
# Groups: id [3]
id dept cnt
<chr> <chr> <dbl>
1 2 V1 8.
2 3 V2 5.
3 1 V3 9.
# if you wanted to keep the original wide data f...
How do I fix a merge conflict due to removal of a file in a branch?
...Rescan for changes in Git Gui (F5)
Notice that conflicting file is deleted
Select Stage Changed Files To Commit (Ctrl-I) from Commit menu
Enter a commit comment like "deleted conflicting file"
Commit (ctrl-enter)
Now if you restart the merge it will (hopefully) work.
...
Good ways to sort a queryset? - Django
...uld expect. Case in point, first is a list of presidents sorted by score (selecting top 5 for easier reading):
>>> auths = Author.objects.order_by('-score')[:5]
>>> for x in auths: print x
...
James Monroe (487)
Ulysses Simpson (474)
Harry Truman (471)
Benjamin Harrison (467)
Ge...
What is the difference between required and ng-required?
...ld B - say, a student number - if the field A has a certain value - if you selected "student" as a choice)
As an example, <input required> and <input ng-required="true"> are essentially the same thing
If you are wondering why this is this way, (and not just make <input required="tru...
How to use the ProGuard in Android Studio?
...efined_buildtype) under module tasks
Go to Build Variant in Left Panel and select the build from drop down
Go to project root directory in File Explorer and open cmd/terminal and run
Linux ./gradlew assembleRelease or assemble(#your_defined_buildtype)
Windows gradlew assembleRelease or assemb...
Showing Travis build status in GitHub repo
...me or org}/{repository}
Click the Status Image (a pop-up will appear)
Select a branch, then click the dropdown Image URL ▼ and set it to Markdown ▼.
Copy Paste the code to your README.md
Git add, commit & push. Refresh Github and you'll see the image now.
...
String formatting in Python 3
...ith decimal integer format.
There are many others things you can do when selecting an argument (using named arguments instead of positional ones, accessing fields, etc) and many format options as well (padding the number, using thousands separators, showing sign or not, etc). Some other examples:
...
Force “git push” to overwrite remote files
...
Since this is the selected answer, I will comment here. Using force isn't a problem when working by yourself. For example, my cloud host starts with it's own git. If I work locally and build a project, and I want to put it on my cloud host (Op...
How To Set Up GUI On Amazon EC2 Ubuntu server
...
18) When prompted to Login to xrdp, ensure that the sesman-Xvnc module is selected, and enter the username ubuntu with the new password that you created in step 8. When you start a session, the port number is -1.
19) When the system connects, several status messages are displayed on the Connection...
How do I get the resource id of an image if I know its name?
...D of an ImageButton (as you would with R.id.name).
– Select0r
Jul 26 '10 at 19:19
42
...