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Changing a specific column name in pandas DataFrame
... the columns here is the simple one which will work for both Default(0,1,2,etc;) and existing columns but not much useful for a larger data sets(having many columns).
For a larger data set we can slice the columns that we need and apply the below code:
df.columns = ['new_name','new_name1','old_nam...
What is the advantage to using bloom filters?
...ing in your data set. If it doesn't, no extra work is done. No disk reads, etc. (Which you would have to do if it were a hash or tree, etc).
Otherwise, if the filter says "Yes, it's in there", there's a 1% chance that it's wrong, so you do the necessary work to find out. 99% of the time, it really ...
Can I target all tags with a single selector?
...
The jQuery selector for all h tags (h1, h2 etc) is " :header ". For example, if you wanted to make all h tags red in color with jQuery, use:
$(':header').css("color","red")
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Convert blob to base64
...ject, I wanted to download an image and then store it as a cached image:
fetch(imageAddressAsStringValue)
.then(res => res.blob())
.then(blobToBase64)
.then(finalResult => {
storeOnMyLocalDatabase(finalResult);
});
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How to check if a String contains any of some strings
... StringComparison.CurrentCultureIgnoreCase, "string", "many substrings"...etc)
– Roma Borodov
Jan 8 '17 at 16:20
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Recommended way of making React component/div draggable
...anything w/ a higher z-index that gets in the way, then you're toast,
// etc.
componentDidUpdate: function (props, state) {
if (this.state.dragging && !state.dragging) {
document.addEventListener('mousemove', this.onMouseMove)
document.addEventListener('mouseup', this.onM...
How to add months to a date in JavaScript? [duplicate]
...ry to add months to a date handling edge cases (leap year, shorter months, etc):
Date.isLeapYear = function (year) {
return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0));
};
Date.getDaysInMonth = function (year, month) {
return [31, (Date.isLeapYear(year) ? 29 ...
Creating a constant Dictionary in C#
...r = "fubar";
}
}
Now you can access .ParentClass.FooDictionary.Key1, etc.
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Choosing between qplot() and ggplot() in ggplot2 [closed]
...ots with limited experience. And the plot created by qplot [p <- qplot(etc)] can be modified by any of the full commands ggplot2 provides, which is handy (they are all stored the same way, no matter how they were created). So personally I use qplot for most everything, and save ggplot for insid...
How do I copy folder with files to another folder in Unix/Linux? [closed]
...r, --recursive, and -R are equivalent. It will also give common pitfalls, etc. which is nice.
– Alex W
Dec 16 '16 at 16:22
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