Tutorial by Examples: l

Getting a GA Account: If you don’t have an Analytics account, create one. If you do have an Analytics account, sign in. Both options are available at google.com/analytics Setting up a property in your Analytics account: A property represents your website or app where the data gets aggrega...
To complete this objective following tasks are required. Foreach Loop Container: To iterate over a user configured directory for files. Expression Task: To update a variable if file exists. Steps First goto Solution Explorer double click on Project.params and create a parameter FolderPat...
The below coordinator job will trigger coordinator action once in a day that executes a workflow. The workflow has a shell script that moves input to output. <coordinator-app name="log_process_coordinator" frequency="${coord:days(1)}" start="2017-04-29T06:00Z" ...
<workflow-app xmlns="uri:oozie:workflow:0.4" name="shell-wf"> <start to="shell-node"/> <action name="shell-node"> <shell xmlns="uri:oozie:shell-action:0.2"> <job-tracker>${jobTracker}</job-tracker> <name-n...
nameNode=hdfs://namenode:port start=2016-04-12T06:00Z end=2017-02-26T23:25Z jobTracker=yourjobtracker poolName=yourpool oozie.coord.application.path=${nameNode}/hdfs_path/coord_job_example/coord workflowAppUri=${oozie.coord.application.path} myscript=myscript.sh myscriptPath=${oozie.coord.ap...
inputDir=${1} outputDir=${2} hadoop fs -mkdir -p ${outputDir} hadoop fs -cp ${inputDir}/* ${outputDir}/
Table/Column Names Two common ways of formatting table/column names are CamelCase and snake_case: SELECT FirstName, LastName FROM Employees WHERE Salary > 500; SELECT first_name, last_name FROM employees WHERE salary > 500; Names should describe what is stored in their object. Th...
SELECT * returns all columns in the same order as they are defined in the table. When using SELECT *, the data returned by a query can change whenever the table definition changes. This increases the risk that different versions of your application or your database are incompatible with each other....
Content of file.json (one JSON object per line): {"A": 1, "B": 2} {"A": 3, "B": 4} How to read directly from a local file: pd.read_json('file.json', lines=True) # Output: # A B # 0 1 2 # 1 3 4
if len(sys.argv) != 4: # The script name needs to be accounted for as well. raise RuntimeError("expected 3 command line arguments") f = open(sys.argv[1], 'rb') # Use first command line argument. start_line = int(sys.argv[2]) # All arguments come as strings, so need to ...
def main(): if len(sys.argv) != 4 or '--help' in sys.argv[1:]: print('usage: my_program <arg1> <arg2> <arg3>', file=sys.stderr) sys.exit(1) # use an exit code to signal the program was unsuccessful process_data()
$man <command> Displays the on-line manual pages for the command $clear Clears the terminal screen $pwd Returns the working directory name $echo <string> Writes the string to the standard output $printf <string> Format and print the string Example: print $PATH ...
A common problem with remote services is rate limiting. The remote service allows us to send only a limited number of requests or amount of data per time period. In RxJS 5 a very similar functionality is provided by the bufferTime operator and especially if we leave the second parameter unspecified...
This example contains over 1000 lines of code in total (too much to be embedded here). For that reason all code is accessible on http://blockbuilder.org/SumNeuron/956772481d4e625eec9a59fdb9fbe5b2 (alternatively hosted at https://bl.ocks.org/SumNeuron/956772481d4e625eec9a59fdb9fbe5b2). Note the bl.oc...
This part hasn't changed over the versions of Minecraft a whole lot, although there have been some mutations in the exact method signatures as well as class hierarchy. A basic item (one that has no functionality, such as a stick or ingot: that's right, both are do-nothing items!) public class Cust...
As with blocks, items need models too. { "parent": "item/generated", "textures": { "layer0": "example:items/basic" } } That's pretty much all that's needed for it to work once the item is registered. The only important th...
Some programming languages have its own Regex peculiarities, for example, the $+ term (in C#, Perl, VB etc.) which replaces the matched text to the last group captured. Example: using System; using System.Text.RegularExpressions; public class Example { public static void Main() { ...
I am using eclipse here, and you need to add below given dependency to your pom.xml 1.) POM.XML <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://m...
dplyr uses Non-Standard Evaluation(NSE), which is why we normally can use the variable names without quotes. However, sometimes during the data pipeline, we need to get our variable names from other sources such as a Shiny selection box. In case of functions like select, we can just use select_ to u...
Using Select2 in a Bootstrap Modal/PopUp If you are using Bootstrap Modal then be sure that Model tabindex=-1 is removed. $('#targetId').select2({ width: '100%', dropdownParent: $("#myModal") })

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