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Integrating the ZXing library directly into my Android application
...nstall Apache Ant - (See this YouTube video for config help)
Download the ZXing source from ZXing homepage and extract it
With the use of Windows Commandline (Run->CMD) navigate to the root directory of the downloaded zxing src.
In the commandline window - Type ant -f core/build.xml press enter a...
Output data from all columns in a dataframe in pandas [duplicate]
...:
print paramdata.values
converts the dataframe to its numpy-array matrix representation.
paramdata.columns
stores the respective column names and
paramdata.index
stores the respective index (row names).
share
...
Windows batch: call more than one command in a FOR loop?
...ile to call more than one command in a single FOR loop? Let's say for example I want to print the file name and after delete it:
...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...-elif-elif-else statement in which 99% of the time, the else statement is executed:
5 Answers
...
Why is there a difference in checking null against a value in VB.NET and C#?
...also a more standard (than C#'s) interpretation of three-valued logic, as explained here.
The C# team made different assumptions about what NULL means, resulting in the behaviour difference you show. Eric Lippert wrote a blog about the meaning of NULL in C#. Per Eric Lippert: "I also wrote about th...
How to write trycatch in R
...vel/library/base/html/connections.html",
"http://en.wikipedia.org/wiki/Xz",
"xxxxx"
)
readUrl <- function(url) {
out <- tryCatch(
{
# Just to highlight: if you want to use more than one
# R expression in the "try" part then you'll have to
...
Command line progress bar in Java
... job done.
The same kind of progress bar you would see using wget under unix.
Is this possible?
15 Answers
...
Groovy: what's the purpose of “def” in “def x = 0”?
...ng piece of code (taken from the Groovy Semantics Manual page ), why prefix the assignment with the keyword def ?
6 Answe...
Favicon not showing up in Google Chrome [duplicate]
...vicon without cache (thanks @Stanislav).
<link rel="icon" type="image/x-icon" href="favicon.ico?v=2" />
Favicon Usage
How did you import the favicon? How you should add it.
Normal favicon:
<link rel="icon" href="favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" hre...
How do I determine k when using k-means clustering?
...
You can maximize the Bayesian Information Criterion (BIC):
BIC(C | X) = L(X | C) - (p / 2) * log n
where L(X | C) is the log-likelihood of the dataset X according to model C, p is the number of parameters in the model C, and n is th...