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Clone private git repo with dockerfile
...nd then COPY the required files into your final image.
Additionally if we LABEL our intermediate layers, we can even delete them from the machine when finished.
# Choose and name our temporary image.
FROM alpine as intermediate
# Add metadata identifying these images as our build containers (this ...
Rails 4 multiple image or file upload using carrierwave
...part => true }) do |f| %>
<div class="field">
<%= f.label :title %><br>
<%= f.text_field :title %>
</div>
<%= f.fields_for :post_attachments do |p| %>
<div class="field">
<%= p.label :avatar %><br>
<...
Modifying a subset of rows in a pandas dataframe
...
Use .loc for label based indexing:
df.loc[df.A==0, 'B'] = np.nan
The df.A==0 expression creates a boolean series that indexes the rows, 'B' selects the column. You can also use this to transform a subset of a column, e.g.:
df.loc[df.A...
How to convert a factor to integer\numeric without loss of information?
...
It is possible only in the case when the factor labels match the original values. I will explain it with an example.
Assume the data is vector x:
x <- c(20, 10, 30, 20, 10, 40, 10, 40)
Now I will create a factor with four labels:
f <- factor(x, levels = c(10, 20...
Forcing a WPF tooltip to stay on the screen
I have a tooltip for a Label and I want it to stay open until the user
moves the mouse to a different control.
10 Answers
...
How do I include inline JavaScript in Haml?
...t;</td>
<td class="error" colspan="2"><span class="label label-important">{%=locale.fileupload.error%}</span> {%=locale.fileupload.errors[file.error] || file.error%}</td>
{% } else { %}
<td class="preview">{% if (file.thumbnail_url) { %}...
How can I use Timer (formerly NSTimer) in Swift?
...es, as seen in the following example. The timer calls a method to update a label every half second.
Here is the code for that:
import UIKit
class ViewController: UIViewController {
var counter = 0
var timer = Timer()
@IBOutlet weak var label: UILabel!
// start timer
@IBAc...
What is the “continue” keyword and how does it work in Java?
...
A continue statement without a label will re-execute from the condition the innermost while or do loop, and from the update expression of the innermost for loop. It is often used to early-terminate a loop's processing and thereby avoid deeply-nested if s...
Get column index from column name in python pandas
... I recommend using the pandas.Index method get_indexer, if you have unique labels:
df = pd.DataFrame({"pear": [1, 2, 3], "apple": [2, 3, 4], "orange": [3, 4, 5]})
df.columns.get_indexer(['pear', 'apple'])
# Out: array([0, 1], dtype=int64)
If you have non-unique labels in the index (columns only sup...
html select option separator
...lt;option>First</option>
</optgroup>
<optgroup label="_________">
<option>Second</option>
<option>Third</option>
</optgroup>
</select>
disabled option (a bit better):
<select>
<option...