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LINQ Orderby Descending Query
I'm sure this will be a relatively simple one.
4 Answers
4
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Specify custom Date format for colClasses argument in read.table/read.csv
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@MySchizoBuddy, If you only have one date column and you are doing this one time then it probably does not matter which way you do it. But if you have several columns in your dataset that are dates, then I think this approach would probably be simpler than ...
Better way to shuffle two numpy arrays in unison
...f you don't like this, a different solution would be to store your data in one array instead of two right from the beginning, and create two views into this single array simulating the two arrays you have now. You can use the single array for shuffling and the views for all other purposes.
Example...
Attempt to set a non-property-list object as an NSUserDefaults
... for (BC_Person *personObject in mutableDataArray) {
NSData *personEncodedObject = [NSKeyedArchiver archivedDataWithRootObject:personObject];
[archiveArray addObject:personEncodedObject];
}
NSUserDefaults *userData = [NSUserDefaults standardUserDefaults];
[userData set...
MySQL Conditional Insert
... AND item = 456)
In this, dual is a table with one row only (found originally in Oracle, now in mysql too). The logic is that the SELECT statement generates a single row of data with the required values, but only when the values are not already found.
Alternatively, loo...
How can I create an executable JAR with dependencies using Maven?
...lude the phase binding. I removed the deprecated assembly goal, because no-one needs to know about that.
– Duncan Jones
Feb 21 '13 at 8:38
3
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Convert a row of a data frame to vector
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When you extract a single row from a data frame you get a one-row data frame. Convert it to a numeric vector:
as.numeric(df[1,])
As @Roland suggests, unlist(df[1,]) will convert the one-row data frame to a numeric vector without dropping the names. Therefore unname(unlist(df...
Pan & Zoom Image
...int origin;
private void image_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
image.CaptureMouse();
var tt = (TranslateTransform)((TransformGroup)image.RenderTransform)
.Children.First(tr => tr is TranslateTransform);
start = e.GetPosition(border);
origin = n...
How do I find out what keystore my JVM is using?
...; cacerts. You need to check where your JAVA_HOME is configured, possibly one of these places,
Computer--->Advanced --> Environment variables---> JAVA_HOME
Your server startup batch files.
In your import command -keystore cacerts (give full path to the above JRE here instead of just s...
How to make a class conform to a protocol in Swift?
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Am I the only one who thinks a compile warning was sufficient?
– Magoo
Oct 28 '15 at 9:27
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