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Remove columns from DataTable in C#
...ry:
DataTable t;
t.Columns.Remove("columnName");
t.Columns.RemoveAt(columnIndex);
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How to store a dataframe using Pandas
...le-p2: uses the newer binary format
json: standardlib json library
json-no-index: like json, but without index
msgpack: binary JSON alternative
CSV
hdfstore: HDF5 storage format
In their experiment, they serialize a DataFrame of 1,000,000 rows with the two columns tested separately: one with text ...
Send POST data using XMLHttpRequest
...s on how to do this.
var http = new XMLHttpRequest();
var url = 'get_data.php';
var params = 'orem=ipsum&name=binny';
http.open('POST', url, true);
//Send the proper header information along with the request
http.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
http.onre...
How to get jQuery dropdown value onchange event
...
Add try this code .. Its working grt.......
<body>
<?php
if (isset($_POST['nav'])) {
header("Location: $_POST[nav]");
}
?>
<form id="page-changer" action="" method="post">
<select name="nav">
<option value="">Go to page...</option...
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
...
I had the same problem (i.e. indexing with multi-conditions, here it's finding data in a certain date range). The (a-b).any() or (a-b).all() seem not working, at least for me.
Alternatively I found another solution which works perfectly for my desired ...
How does a public key verify a signature?
...is a hash (SHA1, MD5, etc.) of the data (file, message, etc.) that is subsequently encrypted with the signer's private key. Since that is something only the signer has (or should have) that is where the trust comes from. EVERYONE has (or should have) access to the signer's public key.
So, to v...
Make an HTTP request with android
...nswer, is there a way to make an simple HTTP request? I want to request an PHP page / script on one of my website but I don't want to show the webpage.
...
Normalize data in pandas
...the subset and compute as before. See pandas.pydata.org/pandas-docs/stable/indexing.html on how to index and select data
– Wouter Overmeire
Oct 19 '15 at 6:43
17
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jQuery validate: How to add a rule for regular expression validation?
..."form">
<form id="LOGIN" name="LOGIN" method="post" action="/index/secure/authentication?action=login">
<h1>Log In</h1>
<div id="LOGIN_EMAIL">
<label for="EMAIL">Email Address</label>
<input id=...
Revert to a commit by a SHA hash in Git? [duplicate]
...mediate commits, then you can use reset to create the correct state of the index to make the commit.
# Reset the index and working tree to the desired tree
# Ensure you have no uncommitted changes that you want to keep
git reset --hard 56e05fced
# Move the branch pointer back to the previous HEAD
...