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Converting string to numeric [duplicate]
...e,
> x = factor(4:8)
> x
[1] 4 5 6 7 8
Levels: 4 5 6 7 8
> as.numeric(x)
[1] 1 2 3 4 5
> as.numeric(as.character(x))
[1] 4 5 6 7 8
Some comments:
You mention that your vector contains the characters "Down" and "NoData". What do expect/want as.numeric to do with these values?
In rea...
What are the allowed tags inside a ?
...
TL;DR: an <li> can contain any element that is valid in <body>.
In the HTML 4.01 spec for lists you’ll find the relevant extract of the DTD:
<!ELEMENT LI - O (%flow;)* -- list item -->
This specifies that an <li> may contain flow conte...
node.js equivalent of python's if __name__ == '__main__' [duplicate]
...
The docs describe another way to do this which may be the preferred method:
When a file is run directly from Node, require.main is set to its module.
To take advantage of this, check if this module is the main module and, if so, call your main code:
var fnName = function() {
// mai...
Javascript Regexp dynamic generation from variables? [duplicate]
...e \ is the escape character in a string): new RegExp('\\(') would be the same as /\(/.
So your patterns have to become:
var pattern1 = ':\\(|:=\\(|:-\\(';
var pattern2 = ':\\(|:=\\(|:-\\(|:\\(|:=\\(|:-\\(';
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Clear MySQL query cache without restarting server
...the user you're running as has reload rights. Alternatively, you can defragment the query cache via...
FLUSH QUERY CACHE;
See the Query Cache Status and Maintenance section of the MySQL manual for more information.
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Page vs Window in WPF?
....g. Internet Explorer). Pages must be hosted in a NavigationWindow or a Frame
Windows are just normal WPF application Windows, but can host Pages via a Frame container
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improve this answer
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How to disable scientific notation?
I have a dataframe with a column of p-values and I want to make a selection on these p-values.
1 Answer
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Shortcut to Apply a Formula to an Entire Column in Excel [closed]
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231
votes
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Delete file from internal storage
I'm trying to delete images stored in internal storage. I've come up with this so far:
8 Answers
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jQuery - Detecting if a file has been selected in the file input [duplicate]
... $(function() {
$("input:file").change(function (){
var fileName = $(this).val();
$(".filename").html(fileName);
});
});
</script>
You may want to add IDs to your input and span so you can select based on those to be specific to the elements you are concerned with ...