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Get type of all variables
...the value rather than the character name of the object as returned by ls:
x <- 1L
typeof(ls())
[1] "character"
typeof(get(ls()))
[1] "integer"
Alternatively, for the problem as presented you might want to use eapply:
eapply(.GlobalEnv,typeof)
$x
[1] "integer"
$a
[1] "double"
$b
[1] "charact...
How can I get Express to output nicely formatted HTML?
When using Express for Node.js, I noticed that it outputs the HTML code without any newline characters or tabs. Though it may be more efficient to download, it's not very readable during development.
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Vim: Replacing a line with another one yanked before
...
What I would do :
aG
Y
xG
Vp
You don't have to leave normal mode, but it does yank the line. You can however use V"0p which will always put the line yanked in step 2.
sha...
Show all Elasticsearch aggregation results/buckets and not just 10
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The size param should be a param for the terms query example:
curl -XPOST "http://localhost:9200/imoveis/_search?pretty=1" -d'
{
"size": 0,
"aggregations": {
"bairro_count": {
"terms": {
"field": "bairro.raw",
"size": 0
}
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Get element at specified position - JavaScript
...cally I'm looking to write a function that takes two input parameters (the x and y coordinates) and returns the html element at the position on the screen represented by the parameters.
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
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I'd just use zip:
In [1]: from pandas import *
In [2]: def calculate(x):
...: return x*2, x*3
...:
In [3]: df = DataFrame({'a': [1,2,3], 'b': [2,3,4]})
In [4]: df
Out[4]:
a b
0 1 2
1 2 3
2 3 4
In [5]: df["A1"], df["A2"] = zip(*df["a"].map(calculate))
In [6]: df
Out[6]...
How can I obtain the element-wise logical NOT of a pandas Series?
...n error, instead you'll get a garbage mask of ints that won't work as you expect.
In[1]: df = pd.DataFrame({'A':[True, False, np.nan], 'B':[True, False, True]})
In[2]: df.dropna(inplace=True)
In[3]: df['A']
Out[3]:
0 True
1 False
Name: A, dtype object
In[4]: ~df['A']
Out[4]:
0 -2
0 -1
Name...
Python AttributeError: 'module' object has no attribute 'Serial' [duplicate]
...rstand why it does work in some cases (for instance when you look at some examples in the serial website)
– VGO
Jul 9 '12 at 22:39
33
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Downloading a picture via urllib and python
...ng urllib.request.urlretrieve (part of Python 3's legacy interface, works exactly the same)
import urllib.request
urllib.request.urlretrieve("http://www.gunnerkrigg.com//comics/00000001.jpg", "00000001.jpg")
share
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Unmount the directory which is mounted by sshfs in Mac [closed]
I've installed OSXFUSE in my mac and used sshfs to mount a remote directory. Now I would like to unmount it, but can't find the way.
My OS is OSX 10.8 Mountain.
Can anyone help?
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