Tutorial by Examples: v

The DeriveFunctor language extension allows GHC to generate instances of Functor automatically. {-# LANGUAGE DeriveFunctor #-} data List a = Nil | Cons a (List a) deriving Functor -- instance Functor List where -- automatically defined -- fmap f Nil = Nil -- fmap f (Cons x xs...

Suppose the following matrix is the transition probability matrix associated with a Markov chain. 0.5 0.2 0.3 P= 0.0 0.1 0.9 0.0 0.0 1.0 In order to study the nature of the states of a Markov chain, a state transition diagram of the Markov chain is drawn. \documentclass[12pt...

Linux/Unix Once you have Progress installed it's very easy to run. You only need a couple of environment variables. The directory where Progress was installed (default /usr/dlc but can be something else) needs to be in the DLC-variable DLC=/usr/dlc And you might also want the "bin" s...

You have already created a plist. This plist will remain same in app. If you want to edit the data in this plist, add new data in plist or remove data from plist, you can't make changes in this file. For this purpose you will have to store your plist in Document Directory. You can edit your plist s...

For starting tvOS I assume must have knowledge of swift and iOS app. One can start reading article from apple reference document. There are 2 type of Tv app we can create one is traditional app, i.e created in xcode code would be similar as we do in iOS app. Here we take example of other type of t...

Avoid this Anti-Pattern var myDeferred = $q.defer(); $http(config).then(function(res) { myDeferred.resolve(res); }, function(error) { myDeferred.reject(error); }); return myDeferred.promise; There is no need to manufacture a promise with $q.defer as the $http service alread...

byte incoming; String inBuffer; void setup() { Serial.begin(9600); // or whatever baud rate you would like } void loop(){ // setup as non-blocking code if(Serial.available() > 0) { incoming = Serial.read(); if(incoming == '\n') { // newline, car...

This is just an extension on the sealed trait variant where a macro generates a set with all instances at compile time. This nicely omits the drawback that a developer can add a value to the enumeration but forget to add it to the allElements set. This variant especially becomes handy for large en...

When you logged into Odoo application you will find an option to see who is the current logged in person in the top right corner. This user information have a dropdown button. Click on the dropdown, then you will find a list. In that list select about Odoo.com option. Clicking on that will open a Ab...

Main motive to develop this compound view is, below 5.0 devices does not support svg in drawable inside TextView/EditText. One more pros is, we can set height and width of drawableRight inside EditText. I have separated it from my project and created in separate module. Module Name : custom_edit_d...

library(dplyr) library(nycflights13) There are several verbs most commonly used in dplyr to modify datasets. select Select tailnum, type, model variables from the dataframe planes: select(planes, tailnum, type, model) ## # A tibble: 3,322 × 3 ## tailnum type mode...

public class BasicJavaBean implements java.io.Serializable{ private int value1; private String value2; private boolean value3; public BasicJavaBean(){} public void setValue1(int value1){ this.value1 = value1; } public int getValue1(){ ...

Click on New Files --> Transformation once a new transformation is open, Click on views tab ,under views create two connections (source ) and (destination). source: table where data is available destination: table where you want to push your data. Once done. on the top bar you have tools -...

One needs the predicted probabilities in order to calculate the ROC-AUC (area under the curve) score. The cross_val_predict uses the predict methods of classifiers. In order to be able to get the ROC-AUC score, one can simply subclass the classifier, overriding the predict method, so that it would a...

In Controller: $this->load->model('your_model'); $data['model'] = $this->your_model; In view: $model->your_method;

We need to use tag <ui:remove> and </ui:remove> between any JSF code that we want to comment it. <ui:remove> <h:outputLabel value="Yeah, I'm really commented" /> </ui:remove> Of course you need add this xmlns to your header html tag. Check this minim...

First lets create a vector called Vector1: set.seed(123) Vector1 <- rnorm(20) And add missing data to it: set.seed(123) Vector1[sample(1:length(Vector1), 5)] <- NA Now we can use the is.na function to subset the Vector Vector1 <- Vector1[!is.na(Vector1)] Now the resulting vect...

There might be times where you have a data frame and you want to remove all the rows that might contain an NA value, for that the function complete.cases is the best option. We will use the first 6 rows of the airquality dataset to make an example since it already has NAs x <- head(airquality) ...

ll | grep ^- | awk -F"." '{print $2 "." $3}' | awk -F":" '{print $2}' | awk '{$1=""; print $0}' | cut -c2- | awk -F"." '{print "mkdir ""$1"";mv ""$1"."$2"" ""$1"""}' >...

Java expressions are evaluated following the following rules: Operands are evaluated from left to right. The operands of an operator are evaluated before the operator. Operators are evaluated according to operator precedence Argument lists are evaluated from left to right. Simple Example I...