Tutorial by Examples: r

Safari To return the URL of the current tab in Safari, use URL of current tab: tell application "Safari" return URL of current tab of window 1 end tell Google Chrome To return the URL of the current tab in Google Chrome, use URL of active tab: tell application "Google Chr...

$ brew tap pivotal/tap $ brew install springboot

$ sudo port install spring-boot-cli

XML file: <ViewFlipper android:id="@+id/viewflip" android:layout_width="match_parent" android:layout_height="250dp" android:layout_weight="1" /> JAVA code: public class BlankFragment extends Fragment{ ViewFlipper viewFl...

Detailed instructions on getting gmail-api set up or installed.

BigDecimal provides static properties for the numbers zero, one and ten. It's good practise to use these instead of using the actual numbers: BigDecimal.ZERO BigDecimal.ONE BigDecimal.TEN By using the static properties, you avoid an unnecessary instantiation, also you've got a literal in you...

The LineChart class presents the data as a series of data points connected with straight lines. Each data point is wrapped in XYChart.Data object, and the data points are grouped in XYChart.Series. Each XYChart.Data object has two fields, which can be accessed using getXValue and getYValue, that co...

/** * Save the results from the saved search as .csv and store in file cabinet * Get the file's internal id when loading the file * Use \n to process each row * Get the internal id and whatever columns that need updating * Create a filtered search and pass the internal id * If the passe...

If you have the following data file cat data.csv 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 maybe you need to read the fourth column of the third line, this would be "24" awk 'NR==3 ...

This example illustrates how to plot a time series of temperature from a csv data file. library(ggplot2) # Original data not provided, see subset/plotted data below datos.orig<-read.csv("data.csv",header=TRUE) # read csv data # Change dates to POSIXct fecha<-as.data.frame(a...

Here, "table" is meant broadly (covering data.frame, table, Printing to plain text Printing (as seen in the console) might suffice for a plain-text document to be viewed in monospaced font: Note: Before making the example data below, make sure you're in an empty folder you can write to....

Sweave from the utils package allows for formatting code, prose, graphs and tables together in a LaTeX document. Further Resources Knitr and RMarkdown

Consider you have a Parent Frame(Frame-Parent). and 2 child frames(Frame_Son,Frame_Daughter). Lets see various conditions and how to handle. 1.From Parent to Son or Daughter: driver.switchTo().frame("Frame_Son"); driver.switchTo().frame("Frame_Daughter"); 2.From Son to Pa...

In quite a few cases your frame might not show up immediately and you probably have to wait till it is loaded to switch. Or else you will have NoSuchFrameException. So its always a good choice to wait before you switch. Following is a ideal way to wait till a frame is loaded. try{ new Web...

This example assumes two servers: dbserver (where our database lives) appclient (where our applications live) FWIW, both servers are SELinux enforcing. First, log on to dbserver Create a temporary directory for creating the certificates. mkdir /root/certs/mysql/ && cd /root/cer...

SELECT DISTINCT object_name(i.object_id) AS [Object Name], c.name AS [Partition Column], s.name AS [Partition Scheme], pf.name AS [Partition Function], prv.tot AS [Partition Count], prv.miVal AS [Min Boundry Value], prv.maVal AS [Max Boundry Value] FROM sys.object...

Suppose we have the following JSON data: { "TESTS": [ { "YEAR": "2017", "MONTH": "June", "DATE": "28" } ] } import groovy.json...

The autocomplete UI control is a search dialog with built-in autocomplete functionality. As a user enters search terms, the control presents a list of predicted places to choose from. When the user makes a selection, a GMSPlace (Place in Xamarin) instance is returned, which your app can then use to ...

JSON_OBJECT creates JSON Objects: SELECT JSON_OBJECT('key1',col1 , 'key2',col2 , 'key3','col3') as myobj; JSON_ARRAY creates JSON Array as well: SELECT JSON_ARRAY(col1,col2,'col3') as myarray; Note: myobj.key3 and myarray[2] are "col3" as fixed string. Also mixed JSON data: S...

Create @myjson variable as JSON type (read more): SET @myjson = CAST('["A","B",{"id":1,"label":"C"}]' as JSON) ; SELECT some members! SELECT JSON_EXTRACT( @myjson , '$[1]' ) , JSON_EXTRACT( @myjson , '$[*].label') , JSON_EXTRACT( @...