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How do you dynamically add elements to a ListView on Android?
....com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="@+id/addBtn"
android:text="Add New Item"
android:layout_width="fill_parent"
android:layout_height="w...
Number of processors/cores in command line
...
The most simplest tool comes with glibc and is called getconf:
$ getconf _NPROCESSORS_ONLN
4
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node.js fs.readdir recursive directory search
...tput required by @crawf using this line of code: require('node-dir').files(__dirname, function(err, files) { console.log(files); });
– Christiaan Westerbeek
May 14 '14 at 20:57
...
Pandas every nth row
...simpler solution to the accepted answer that involves directly invoking df.__getitem__.
df = pd.DataFrame('x', index=range(5), columns=list('abc'))
df
a b c
0 x x x
1 x x x
2 x x x
3 x x x
4 x x x
For example, to get every 2 rows, you can do
df[::2]
a b c
0 x x x
...
Merge two Git repositories without breaking file history
...mmits to the local repo after adding the remote)
git remote add --fetch old_a <OldA repo URL>
# Merge the files from old_a/master into new/master
git merge old_a/master --allow-unrelated-histories
# Move the old_a repo files and folders into a subdirectory so they don't collide with the othe...
Change one value based on another value in pandas
...ere.
Assuming you can load your data directly into pandas with pandas.read_csv then the following code might be helpful for you.
import pandas
df = pandas.read_csv("test.csv")
df.loc[df.ID == 103, 'FirstName'] = "Matt"
df.loc[df.ID == 103, 'LastName'] = "Jones"
As mentioned in the comments, you ...
What does the “===” operator do in Ruby? [duplicate]
...ux
flurb
else
blarf
end
gets translated to something (roughly) like
_temp = foo
if bar === _temp
baz
elsif quux === _temp
flurb
else
blarf
end
Note that if you want to search for this operator, it is usually called the triple equals operator or threequals operator or case equality op...
mysql :: insert into table, data from another table?
...
INSERT INTO action_2_members (campaign_id, mobile, vote, vote_date)
SELECT campaign_id, from_number, received_msg, date_received
FROM `received_txts`
WHERE `campaign_id` = '8'
...
Changing selection in a select with the Chosen plugin
...-selected", function() {
var locID = jQuery(this).attr('class').split('__').pop();
// I have a class name: class="result-selected locvalue__209"
var arrayCurrent = jQuery('#searchlocation').val();
var index = arrayCurrent.indexOf(locID);
if (index > -1) {
arrayCurrent....
How to correctly save instance state of Fragments in back stack?
...tManager()
.beginTransaction()
.add(R.id.my_container, myFragment, MY_FRAGMENT_TAG)
.commit();
} else {
myFragment = (MyFragment) getSupportFragmentManager()
.findFragmentByTag(MY_FRAGMENT_TAG);
}
...
}
Note however th...