# How to start on data analisys

#### bipe15

##### New Member
Hey, i am new here and i would like get some advices to start on data analisys field.

I study computing engineer and i work as programmer. For my work i have access to big amount of data that i would like analize.

Any tutorial for first steps?

Thank you in advance and sorry for my english

#### chetan.apa

##### Member
You will have to be more specific about what inference you want to make from your data. Based on that you could look at basic descriptive statistics or techniques of regression, time series etc etc..
Also, which language you program on?

#### bipe15

##### New Member

I program in several languages, mainly .NET, PHP. But i make some projects in Java, Python and C. I have no problem to learn a new languaje.

About the techniques, I am sure that my data have any patron because for example if in april down the sales sure same month (April) of previous years too down the sales.

I think first i should make a descriptive analisys to understand the data. ¿Correct? later in function of the descriptive analisys result i take a decision for the next method

if the last paragraph is correct, ¿what need to start? i have seen something about R

Thank you

#### chetan.apa

##### Member
I think first i should make a descriptive analisys to understand the data. ¿Correct? later in function of the descriptive analisys result i take a decision for the next method

if the last paragraph is correct, ¿what need to start? i have seen something about R

Thank you
Definitely, you need to perfrom descriptive statistics first. R is a good tool to learn and use for statistical analysis

About the techniques, I am sure that my data have any patron because for example if in april down the sales sure same month (April) of previous years too down the sales.
I think you are talking about seasonality in the data. Can you provide a plot of your data

#### bipe15

##### New Member
Here is a data plot

Data is about received calls in a call center, not about sales like in my previous example. Data is grouped by year and month in the chart just to get a better view but the original data is sections of 15 minutes.

#### noetsi

##### No cake for spunky
I think you need to start with, what do I want to know. That seems pretty basic, but until you have a very specific sense of what the question is you can not form hypothesis or test them. Lots of people rush into software or methods without clearly thinking through what they are trying to achieve.

#### Mean Joe

##### TS Contributor
Any tutorial for first steps?
It looks like you have data about # of calls in a month.