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How to sort a list of lists by a specific indem>x m> of the inner list?
I have a list of lists. For em>x m>ample,
10 Answers
10
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Rotating and spacing am>x m>is labels in ggplot2
I have a plot where the m>x m>-am>x m>is is a factor whose labels are long. While probably not an ideal visualization, for now I'd like to simply rotate these labels to be vertical. I've figured this part out with the code below, but as you can see, the labels aren't totally visible.
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Would it be beneficial to begin using instancetype instead of id?
...cetype. I've personally seen this catch at least 3 cases of incorrect pre-em>x m>isting code.
– Catfish_Man
Oct 1 '13 at 0:29
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show 8 more comme...
WPF ListView turn off selection
...gt;
<ListView.ItemContainerStyle>
<Style TargetType="{m>x m>:Type ListViewItem}">
<Style.Triggers>
<Trigger Property="IsSelected"
Value="True">
<Setter Property="Background"
...
How to append rows to an R data frame
...ined as:
# pre-allocate space
f3 <- function(n){
df <- data.frame(m>x m> = numeric(n), y = character(n), stringsAsFactors = FALSE)
for(i in 1:n){
df$m>x m>[i] <- i
df$y[i] <- toString(i)
}
df
}
Here's a similar approach, but one where the data.frame is created as the last step.
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Behaviour of increment and decrement operators in Python
...d - unary operators only work on numbers, but I presume that you wouldn't em>x m>pect a hypothetical ++ operator to work on strings.)
++count
Parses as
+(+count)
Which translates to
count
You have to use the slightly longer += operator to do what you want to do:
count += 1
I suspect the ++ an...
How to find the size of localStorage
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Em>x m>ecute this snippet in JavaScript console (one line version):
var _lsTotal=0,_m>x m>Len,_m>x m>;for(_m>x m> in localStorage){ if(!localStorage.hasOwnProperty(_m>x m>)){continue;} _m>x m>Len= ((localStorage[_m>x m>].length + _m>x m>.length)* 2);_lsTotal+=_m>x m>Len;...
Breaking out of nested loops [duplicate]
Is there an easier way to break out of nested loops than throwing an em>x m>ception? (In Perl, you can give labels to each loop and at least continue an outer loop.)
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What's a concise way to check that environment variables are set in a Unim>x m> shell script?
I've got a few Unim>x m> shell scripts where I need to check that certain environment variables are set before I start doing stuff, so I do this sort of thing:
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What is an idempotent operation?
...effect if it is called more than once with the same input parameters. For em>x m>ample, removing an item from a set can be considered an idempotent operation on the set.
In mathematics, an idempotent operation is one where f(f(m>x m>)) = f(m>x m>). For em>x m>ample, the abs() function is idempotent because abs(abs(m>x m>))...