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Use cases for the 'setdefault' dict method
... but not so much if it's dynamic.
For example, I need a dictionary to map strings to unique ints. defaultdict(int) will always use 0 for the default value. Likewise, defaultdict(intGen()) always produces 1.
Instead, I used a regular dict:
nextID = intGen()
myDict = {}
for lots of complicated stuf...
Cleaning `Inf` values from an R dataframe
...n, function(x) replace(x, is.infinite(x), : 'what' must be a character string or a function
– Hack-R
Feb 26 '16 at 15:59
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What exactly is an HTTP Entity?
... @lmray: they are entirely different entities. ;) (One is about encoding strings in a HTML text, the other is about structuring information when a browser and a server talk to each other over the HTTP protocol. Also, one is more confusing than the other. Or vice versa. ;-o )
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Can a CSV file have a comment?
...n't pass some validation rules. In that case, you'd have trouble writing a string-type field description record for any numeric fields.
I am by no means an expert, though, so feel free to point out any mistakes in my theory.
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Jackson Vs. Gson [closed]
...pe information)
Integrated support for binary content (base64 to/from JSON Strings)
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How to list all the files in a commit?
...sses the commit ID output.
The --pretty argument specifies an empty format string to avoid the cruft at the beginning.
The --name-only argument shows only the file names that were affected (Thanks Hank). Use --name-status instead, if you want to see what happened to each file (Deleted, Modified, Add...
Is it possible to forward-declare a function in Python?
...turally it makes little sense to have it afterwards), one can just store a string and try to call the function later.
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How to succinctly write a formula with many variables from a data frame?
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A slightly different approach is to create your formula from a string. In the formula help page you will find the following example :
## Create a formula for a model with a large number of variables:
xnam <- paste("x", 1:25, sep="")
fmla <- as.formula(paste("y ~ ", paste(xnam, col...
jQuery 'input' event
...trary could be surmised from rereading (i.e. from a reference to different string identifiers between Level 0 and Level 2 models). That is quite misleading.
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How to hide first section header in UITableView (grouped style)
...{
if (section == 0)
return 1.0f;
return 32.0f;
}
- (NSString*) tableView:(UITableView *) tableView titleForHeaderInSection:(NSInteger)section
{
if (section == 0) {
return nil;
} else {
// return some string here ...
}
}
- (void) viewDidLoad
{
[su...