Data

How To : Find a data point (Xi) with the Z-Score formula

In this free video math tutorial, we learn how to use the Z-Score formula to find a data point (Xi) in statistics. With mathematics, as with anything else, not everyone progresses at the same rate. Stats is no exception. Happily, in the age of Internet video tutorials, this is ...more

How To : Convert Excel spreadsheet data to XML

Here is a quick video on how to convert Excel spreadsheet data to XML for import into Flash or Flex. Don't spend time typing all that data again, instead create a schema in Excel and convert it to XML.

How To : Analyze Wi-Fi Data Captures with Jupyter Notebook

When it comes to sniffing Wi-Fi, Wireshark is cross-platform and capable of capturing vast amounts of data. Making sense of that data is another task entirely. That's where Jupyter Notebook comes in. It can help analyze Wi-Fi packets and determine which networks a particular p ...more

How To : Find & extract duplicate records from a data set

This video is about finding duplicate entries in excel sheet. The example excel sheet contains different names. There are around 1000 different names in the sample excel sheet. CountIf(range,criteria) formula has been used to do the comparison and return of results in True or ...more

How To : Stop Any Android App from Stealing Your Data

Many popular apps automatically share your personal data. While I have accepted a certain amount of data collection from Google, to know companies such as Facebook perform this without my consent bothers me. After some researching, I've found a great solution, and it doesn't r ...more

How To : Group quantitative data in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's Excel ...more

How To : Erase personal data from your Apple iPhone 4

We all have our reasons for erasing personal data from a phone. Whether you just ended a bad relationship whose face you never want to see again (lots of text messages) or just want to restore your privacy on the cell phone, erasing may be your only option. But make sure you' ...more

How To : Create a histogram using data analysis in Excel

A histogram is a summary graph showing a count of data points that fall in various ranges. Histograms are used in statistics and other forms of mathematics. In this video, learn how to create your own histogram using data analysis on the computer. This tutorial will show you h ...more

How To : Hack into encrypted computer data

Xeni visits the offices of the Electronic Frontier Foundation and speaks with Jake Appelbaum and Bill Paul, two of the authors of a security research paper that shows how your computer's memory can be tricked into revealing data you thought was safely encrypted, and out of the ...more

How To : Sort data by multiple columns in Microsoft Excel

Today we are going to learn how to sort data in a Microsoft Excel 2003 spread sheet. We will go over single column and multiple column sorting. In a single column sort you may high light the data or just click on any cell in the column. Once the data is selected look for the s ...more

How To : Import Excel to a MySQL database with cPanel

This data management tutorial shows you how to take a Microsoft Excel Spreadsheet and import it into a MySQL Database using CSV files and PHPMyAdmin in cPanel. Being able to move data from Excel to MySQL is an important part of database content management, so if you use cPanel ...more

How To : Map Wardriving Data with Jupyter Notebook

With the Wigle WiFi app running on an Android phone, a hacker can discover and map any nearby network, including those created by printers and other insecure devices. The default tools to analyze the resulting data can fall short of what a hacker needs, but by importing wardri ...more

How To : Here's What Google Maps Does with Your Data

With over 1 billion downloads on the Play Store alone, Google Maps has become a staple for those traveling. Its popularity is the result of Google consistently improving its accuracy and adding new functionality. And this was only achieved with help of you — specifically, your ...more

How To : Use an array formula to filter data in Excel

New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 574th installment in their series of digital spreadsheet magic tricks, you'll learn how to streamline filtering ...more

Plex 101 : How to Change Video Quality to Save Mobile Data

When you're on the go, Plex makes sure your media always stays with you. Just install the server app for Mac or PC and enable remote access, then you can stream movies and TV shows from your computer to your phone over the internet. But video playback uses data like nothing e ...more

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