Reprinted from the product is slightly Library http://www.pinlue.com/article/2020/04/0210/5110100879443.html
Future of Big Data era's most lucrative job skills or what?
Some people say that AI engineer, was also said senior consultant, also said network security engineer ..... from Baidu, know almost see the answer after another, but 80% of the answers have emerged in a same profession, that is, Data Analyst.
More and more jobs are required to have data analysis capabilities, on job sites, operations, product, financial, banking, and more jobs will require data analysis. According to statistics, every day a wide area north of the data analysis talent gap will exceed more than 1W, and data analysis post one year of experience, half a monthly salary of 20k or more.
How can I learn data analysis capabilities, the most important points is the tool and thinking, this first is that data analysis tools. Data analysis tools can be roughly divided into three categories, a first category Excel, the second category is data analysis software, such as tableau, FineBI etc. The third type is a programming language python, R.
PS: Download this article and data analysis tool for learning materials have been finishing, backstage private letter I replied, "Data Analysis" for free to receive!
Excel
I naturally do not have to say this, one of the most popular office software, which can be said is no wonder, known to everybody. From simple spreadsheets, pivot tables, writing formula, then VBA language, in addition to data analysis but also Excel can do many things, you can draw a timetable, do a questionnaire as a calculator to count and even can be used to draw, write a small game with VBA, it can be said to be all-round player.
But Excel flaw is the inability to handle large data, usually a few thousand or ten thousand Excel data are also hold live, but in the era of big data, data of the order will become increasingly large, only Excel is clearly not competent.
Programming language Python, R
Excel data analysis tools to get started, and Python, R is advanced data analysis tools. python basically be in recent years, the most popular programming languages, and data analysis function is very powerful, through pandas, Numpy, matplotlib such as libraries, to deal with general data analysis, fully adequate, but also to achieve cool data visualization
R language like a kind of comprehensive data analysis tools strong, set the statistical analysis, data mining, data visualization in one, focused primarily on statistics, showing a lot of advantages in terms of statistics, with R or do simple data analysis properly properly firmly. But scientific data to the direction to go, then, R rushing a bit, turn Python proud of ......
Professional data analysis software: FineBI / tableau
The talk of the above two types of data analysis tools, there is a kind of professional data analysis software, excel in front of the product definition is not this just the data analysis, there are many other functions, such as the development of small games, painting, these functions Finebi , tableau are not complete, but industry specializing in surgery, data analysis software is designed to make data analysis.
Take Finebi I am familiar with it, from the data link, data processing, finishing clean, and then to the final data visualization, data analysis to do the entire process with FineBI are more professional and convenient, solve a lot of Excel, python exist Pain points:
1, link multiple data sources to support the large amount of data
Just Above that excel in the short board is not supported by a large magnitude of data, tens of thousands of pieces of data card will not work, and Finebi uses a spider engine can support a large amount of data of one million.
Moreover, excel data source does not support the link, but we are in the actual data analysis work, often need to use data from different systems, we need to use Excel database side of each side of the access, without a lot of time. FineBI can be directly connected to the database, supports more than 30 kinds of big data platform and SQL data sources, supports Excel file data set.
2, data processing step
Such as data processing cleaning this kind of work, to do with excel, need to write a lot of functions, but if a single operation error, it can only step by step withdrawal operation is likely to lead to what has been done and start again the second time, this problem specializing in data analysis software will not appear, FineBI using self-created data sets approach to data processing, the data can be simple to sort, sum, average number of operations, data sheets merger, and each step of the operation will be recorded, you can view, add, delete, change
3, the data visualization and convenient analysis
Well, the next step is data cleansing visual analysis, visual charts produced by Excel, it may take a lot of time to edit the chart, including color, font settings, even we often see some Excel tips like the article, to achieve cool visualizations need to use pivot tables, VBA functions, and so a lot of skills to be able to complete, but with FineBI do visual analysis, simply drag drag, the chart is automatically generated
For instance, we need to do a sales analysis table, only sales drag the vertical axis, horizontal axis dragged date, the chart is automatically generated:
4, rich visualizations
Finally, the results of data analysis show is very important, so the choice of data analysis tools, will have to consider the visual effect, FineBI built a wealth of visual chart types, but also according to the horizontal, the vertical axis analysis indicators selected automatically recommend appropriate chart.
Apart from some basic chart types, the chart also has a plug-advanced dynamic maps, dynamic dashboards, visualization capability is very strong, used to make business analytics dashboard is very convenient
Some make use FineBI cockpit:
Overall I want Finebi, tableau excellent choice for this type of analysis tools on the efficiency and performance are data analysis, data analysis tools but also the future development of the inevitable trend
to sum up
Which data analysis tool selection, as if to buy cell phones, basic phones, text messaging functions we have, is to buy an apple or Huawei buy it? Cost will certainly be combined with mobile phones, appearance, personal preferences to choose. Selected data analysis tools, too, the same a chart with Excel, python, Finebi can ultimately achieve, but if needs FineBI 1 minute to 5 minutes Python, excel to 10 minutes, then obviously it is the lowest cost of using FineBI of
