## Analysis, analytics, trend and forecasting

Analysis Definition:

1. A systematic examination and evaluation of data or information, by breaking it into its component parts to uncover their interrelationships. Opposite of synthesis.
2. An examination of data and facts to uncover and understand cause-effect relationships, thus providing basis for problem solving and decision making.

Analytical Definition:

The field of data analysis. Analytics often involves studying past historical data to research potential trends, to analyze the effects of certain decisions or events, or to evaluate the performance of a given tool or scenario. The goal of analytics is to improve the business by gaining knowledge which can be used to make improvements or changes.

Then from the analytical, come forecasting – the prediction from the past and present trend of analysis.

Forecast Definition:

A planning tool that helps management in its attempts to cope with the uncertainty of the future, relying mainly on data from the past and present and analysis of trends.
Forecasting starts with certain assumptions based on the management’s experience, knowledge, and judgment. These estimates are projected into the coming months or years using one or more techniques such as Box-Jenkins models, Delphi method, exponential smoothing, moving averages, regression analysis, and trend projection. Since any error in the assumptions will result in a similar or magnified error in forecasting, the technique of sensitivity analysis is used which assigns a range of values to the uncertain factors (variables).

Trend Analysis Definition

Method of time series data (information in sequence over time) analysis involving comparison of the same item (such as monthly sales revenue figures) over a significantly long period to (1) detect general patter of a relationship between associated factors or variables, and (2) project the future direction of this pattern.

As a conclusion, by referring to my previous post about http://people.utm.my/suraya/2017/09/14/predictive-analytics-vs-business-intelligence/ , then analysis is more on BI and analytics and forecasting is more on Predictive Analytics.

## Utilizing Tableau Free Software for students

If you’re a student looking to land an internship or your first full-time job, you probably know that companies are looking for people with data skills. But they’re not just looking for any data talent—they’re specifically looking for people who know how to use Tableau. In fact, Tableau was recently listed as the third fastest growing technical skill in demand.

You’ve taken the first step in joining the community of over 100,000 students who are using Tableau each year! Now that you have your free license, you can begin learning these valuable skills that will help you land a job. Here are three steps to help you navigate the beginning of your Tableau journey:

1. Learn Tableau

The first step to being successful with Tableau is learning the tool itself. Recent grad Matt Atherton states, “Start with tutorial videos – first the Getting Started video on Tableau’s website. When you’re watching these, think about how to visualize your own data”. This short 25-minute video will provide you with an overview of Tableau Desktop from start—connecting to data—to finish—sharing your completed visualizations.

Once you’ve gotten the lay of the land, you can dive deeper into specific functionality with the Starter Kits and on-demand training videos on our website. As a student, Lynda.com is also a great resource, since many schools have subscriptions that allow for free access. Search for Tableau and you’ll find hundreds of videos and courses, many created by experts in the Tableau community.

Speaking of our community…

Our community is part of what makes Tableau so unique. Not only is our community active on our user forums, they also create a bunch of great training content. Check out the Tableau Reference Guide created by one of our Zen Masters, Jeffrey Shaffer.

2. Get inspired and start practicing

Once you start learning the functionality of Tableau, the next step is finding data you want to analyze. We’ve compiled a list of free data resources to help.

Another great way to find data is to check out the viz gallery on Tableau Public. Once you find an interesting viz, many authors allow you to download the workbook (simply click on the download icon in the bottom right-hand corner of the viz). From there, you can reverse engineer the viz to see how the author created it. Or, you can use the data to create your own viz. Here are a few of my favorite vizzes:

That’s not all. Makeover Monday, currently run by Tableau Social Ambassador Eva Murray and Tableau Zen Master Andy Kriebel, is a great way to start honing your data viz skills and get involved in a broader conversation about and with data. Each week a link to a chart and its data is posted online. Your task is to rework the chart and then share it on Twitter. This is a great way to engage with the Tableau community and get feedback on your work. And if that’s not enough, take your Tableau skills to the next level with Workout Wednesday.

Once you’ve started created your own vizzes, don’t forget to publish them to your Tableau Public profile to start your data portfolio (learn how to do that here). A great example of this is Corey Jones’s profile. He started his data portfolio while he was a student at Saint Joseph’s University. Once you’ve published a few vizzes, you can add your Public profile link to your resume and LinkedIn profile to showcase your skills to future employers and get a leg up on the competition.

I wish you the best of luck on the start of your Tableau journey and can’t wait to see what you create. Don’t forget to enter your viz into our student contest for a chance to win Tableau swag. If you don’t yet have a free student license, request yours today!