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Determine installed PowerShell version
...cally from CMD, PowerShell, or even Pwsh (PS 6.0) but you need to use this form: powershell -command "(Get-Variable PSVersionTable -ValueOnly).PSVersion" (that will work in all cases)
– PSaul
Jul 12 '18 at 15:56
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pull out p-values and r-squared from a linear regression
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Notice that summary(fit) generates an object with all the information you need. The beta, se, t and p vectors are stored in it. Get the p-values by selecting the 4th column of the coefficients matrix (stored in the summary object):
summary(fit)$coefficients[,4]
summary(fit)$r.squar...
How to check edittext's text is email address or not?
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/**
* method is used for checking valid email id format.
*
* @param email
* @return boolean true for valid false for invalid
*/
public static boolean isEmailValid(String email) {
String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
Pattern pattern = Pa...
Unexpected results when working with very big integers on interpreted languages
...rbitrary precision. It will produce the correct answer on 32 or 64 bit platforms.
This can be seen by raising 2 to a power far greater than the bit width of the platform:
>>> 2**99
633825300114114700748351602688L
You can demonstrate (with Python) that the erroneous values you are getti...
How to determine SSL cert expiration date from a PEM encoded certificate?
...openssl:
openssl x509 -enddate -noout -in file.pem
The output is on the form:
notAfter=Nov 3 22:23:50 2014 GMT
Also see MikeW's answer for how to easily check whether the certificate has expired or not, or whether it will within a certain time period, without having to parse the date above.
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How to read a text-file resource into Java unit test? [duplicate]
...en using junit test and want to setup test by loading xls file into byte[] form.
– Mubasher
Mar 14 '16 at 10:29
2
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Django Admin - change header 'Django administration' text
...rs.filesystem.Loader is added into TEMPLATE_LOADERS.
See docs for more information on settings.py.
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The calling thread cannot access this object because a different thread owns it
...Dispatcher.Invoke is for immediately updating the UI in a function that performs other tasks:
// Force WPF to render UI changes immediately with this magic line of code...
Dispatcher.Invoke(new Action(() => { }), DispatcherPriority.ContextIdle);
I use this to update button text to "Processing....
How do I download a binary file over HTTP?
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The simplest way is the platform-specific solution:
#!/usr/bin/env ruby
`wget http://somedomain.net/flv/sample/sample.flv`
Probably you are searching for:
require 'net/http'
# Must be somedomain.net instead of somedomain.net/, otherwise, it will th...
Erratic hole type resolution
...s because the values are determined at run time. It can bring about a transformation of values depending on what are entered at run time hence it assumes that the hole is already updated.
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