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dplyr: “Error in n(): function should not be called directly”
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120
I presume you have dplyr and plyr loaded in the same session. dplyr is not plyr. ddply is not ...
Does Python have a ternary conditional operator?
...ession:
>>> pass if False else x = 3
File "<stdin>", line 1
pass if False else x = 3
^
SyntaxError: invalid syntax
You can, however, use conditional expressions to assign a variable like so:
x = a if True else b
Think of the conditional expression as switching betwee...
Detect if a NumPy array contains at least one non-numeric value?
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187
This should be faster than iterating and will work regardless of shape.
numpy.isnan(myarray)....
CASCADE DELETE just once
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178
No. To do it just once you would simply write the delete statement for the table you want to ...
IE7 does not understand display: inline-block
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301
The IE7 display: inline-block; hack is as follows:
display: inline-block;
*display: inline;
zoo...
python's re: return True if string contains regex pattern
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155
import re
word = 'fubar'
regexp = re.compile(r'ba[rzd]')
if regexp.search(word):
print 'matc...
curl: (60) SSL certificate problem: unable to get local issuer certificate
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edited Feb 20 at 5:17
Bret Weinraub
1,04799 silver badges1717 bronze badges
answered Aug 5 '15 at...
try {} without catch {} possible in JavaScript?
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11 Answers
11
Active
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is there a require for json in node.js
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edited Jan 29 '18 at 11:57
Frank Nocke
6,87822 gold badges5656 silver badges8282 bronze badges
...