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How to randomize (or permute) a dataframe rowwise and columnwise?
...ple(1:n()))
or
df2 <- sample_frac(df1, 1L)
column-wise:
df2 <- select(df1, one_of(sample(names(df1))))
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Specified argument was out of the range of valid values. Parameter name: site
...button, then type Turn Windows Features ON or OFF in the search box, then select Internet Information Services Hostable Web Core.
– Jim Taliadoros
Oct 29 '17 at 11:40
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AWS S3 copy files and folders between two buckets
...
You can now do it from the S3 admin interface. Just go into one bucket select all your folders actions->copy. Then move into your new bucket actions->paste.
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Setting the zoom level for a MKMapView
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This should be the selected answer. I tried a lot of the other proposed solutions but none of them worked properly. This code is simple and effective.
– Levi Roberts
May 8 '14 at 7:07
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Sort a Custom Class List
...n use linq:
var q = from tag in Week orderby Convert.ToDateTime(tag.date) select tag;
List<cTag> Sorted = q.ToList()
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The property 'value' does not exist on value of type 'HTMLElement'
...
A quick fix for this is use [ ] to select the attribute.
function greet(elementId) {
var inputValue = document.getElementById(elementId)["value"];
if(inputValue.trim() == "") {
inputValue = "World";
}
document.getElementById("greet").i...
Git for Windows: .bashrc or equivalent configuration files for Git Bash shell
...y opening up git-bash.exe in Administrator mode. (Right click the file and select "Run as Administrator", or change settings in Properties → Compatibility → Run this program as administrator.)
2) Run cd ~. It will take you to C:/Users/<Your-Username>.
3) Run vi .bashrc. This will open yo...
Error: Could not find or load main class in intelliJ IDE
...e's what I did:
Goto File | Project Structure, or press Crtl+Shift+Alt+S
Select Modules under the Project Settings section.
In the Sources tab click Sources on the 'Mark as:' line.
Click the Apply button.
For some reason, all my classes then had blue C's.
Someone with a better understanding...
How to read and write into file using JavaScript?
...t the file into the browser, or a simple upload control. Once the user has selected a file, you can read it w/ Javascript: http://www.html5rocks.com/en/tutorials/file/dndfiles/
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What's default HTML/CSS link color?
...in any decent graphic editor or using the developer tools of your browser (select an a element, look for computed values>color).
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