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python pandas dataframe to dictionary
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See the docs for to_dict. You can use it like this:
df.set_index('id').to_dict()
And if you have only one column, to avoid the column name is also a level in the dict (actually, in this case you use the Series.to_dict()):
df.set_index('id')...
Java SimpleDateFormat(“yyyy-MM-dd'T'HH:mm:ss'Z'”) gives timezone as IST
... edited Jan 22 '15 at 3:26
AZ_
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answered Oct 1 '13 at 11:41
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How to sort an array in descending order in Ruby
... 0.001631 0.110628 ( 0.111532)
...the reverse method doesn't actually return a reversed array - it returns an enumerator that just starts at the end and works backwards.
The source for Array#reverse is:
static VALUE
rb_ary_reverse_m(VALUE ary)
{
long len = RARRAY_LEN(...
What are the most-used vim commands/keypresses?
...rouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' for appending text at the end of the line, or…" I can't imagine everyone uses a...
Regex - Should hyphens be escaped? [duplicate]
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Correct on all fronts. Outside of a character class (that's what the "square brackets" are called) the hyphen has no special meaning, and within a character class, you can place a hyphen as the first or last character in the range (e.g....
Getting the object's property name
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More specifically, Object.keys(obj) returns an array of property names, i.e. keys, belonging to the passed in obj.
– a learner has no name
Mar 26 '16 at 12:43
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Change values while iterating
...", ""},
&Attribute{"bar", ""},
}}
for _, attr := range n.Attr {
if attr.Key == "href" {
attr.Val = "something"
}
}
for _, v := range n.Attr {
fmt.Printf("%#v\n", *v)
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Mac OS X Terminal: Map option+delete to “backward delete word”
... trial and error). now i wonder why there is so little documentation about all this.
– victor n.
Oct 7 '15 at 16:14
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Error handling in Bash
...kens code's predictability and portability).
You can either let the trap call error for you (in which case it uses the default exit code of 1 and no message) or call it yourself and provide explicit values; for instance:
error ${LINENO} "the foobar failed" 2
will exit with status 2, and give an ...
Best way to do Version Control for MS Excel
...lution here.
The solution for me was to create a spreadsheet that exports all modules on save, and removes and re-imports the modules on open. Yes, this could be potentially dangerous for converting existing spreadsheets.
This allows me to edit the macros in the modules via Emacs (yes, emacs) or n...