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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
I have a dataframe with ~300K rows and ~40 columns.
I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily.
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ORA-01882: timezone region not found
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You may also try to check the version of the Oracle jdbc driver and Oracle database. Just today I had this issue when using ojdbc6.jar (version 11.2.0.3.0) to connect to an Oracle 9.2.0.4.0 server. Replacing it with ojdbc6.jar version 11.1.0.7.0 solved the issue.
I also managed to make o...
HTML/Javascript change div content
...nt").innerText = "<b>bold text?</b>"; will behave differently, and sometimes quite usefully, to document.getElementById("content").innerHTML = "<b>bold text?</b>";
– Isaac
May 23 '13 at 9:51
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How to get ALL child controls of a Windows Forms form of a specific type (Button/Textbox)?
...r you. I tested it by creating a sample application, I then put a GroupBox and a GroupBox inside the initial GroupBox. Inside the nested GroupBox I put 3 TextBox controls and a button. This is the code I used (even includes the recursion you were looking for)
public IEnumerable<Control> GetAl...
Where to put Gradle configuration (i.e. credentials) that should not be committed?
I'm trying to deploy a Gradle-built artifact to a Maven repo, and I need to specify credentials for that. This works fine for now:
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Lambda expression to convert array/List of String to array/List of Integers
...erator) {
return Arrays.stream(from).map(func).toArray(generator);
}
And use it like this:
//for lists
List<String> stringList = Arrays.asList("1","2","3");
List<Integer> integerList = convertList(stringList, s -> Integer.parseInt(s));
//for arrays
String[] stringArr = {"1","2...
How can I exclude one word with grep?
... -v "unwanted_word" file will filter the lines that have the unwanted_word and grep XXXXXXXX will list only lines with pattern XXXXXXXX.
EDIT:
From your comment it looks like you want to list all lines without the unwanted_word. In that case all you need is:
grep -v 'unwanted_word' file
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How can I push a local Git branch to a remote with a different name easily?
I've been wondering if there's an easy way to push and pull a local branch with a remote branch with a different name without always specifying both names.
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plot a circle with pyplot
...rcle with matplotlib.pyplot (please no pylab) taking as input center (x,y) and radius r. I tried some variants of this:
9 A...
How can I custom-format the Autocomplete plug-in results?
...() {
// don't really need this, but in case I did, I could store it and chain
var oldFn = $.ui.autocomplete.prototype._renderItem;
$.ui.autocomplete.prototype._renderItem = function( ul, item) {
var re = new RegExp("^" + this.term) ;
var t = item.label.replace...