28 October 2014

Cycling in London

I've done a cycling map of London.
Not everything was as I planned. I was searching for a line shape file of the London's cycling lines, as logical would be adding length of cycling lines per ward or any data set saying about an average commuting distance to work. I asked Transport for London and a few cycling organizations based in London for the shape file but nobody was able to help me.

24 October 2014

Simplifying geometries of polygon shape files

If your map works very slowly and you have to wait for a respond for a loooooooooong time, it's a clear sign that you need to simplify the geometries of the shape files.

14 August 2014

Tableau's culture

I applied for work and I was rejected. The HR lady called me to provide me with the feedback, she said shortly that nothing was wrong with my application but the successful candidate had better experience.

08 August 2014

Maps in Tableau 8.2 - street level

There're new maps in Tableau 8.2. Now you can choose between Tableau (the new maps) and Tableau Classic (the old ones, not medieval maps but just from 8.1 version).


06 August 2014

Tableau Mapping Template for London Boroughs

Feel free to use this template in your Tableau projects, just remember about placing the information about the owner of the original shape file.

You can check Tableau template for London wards too.

Tableau Mapping Template for London Wards

If you've searched for a Tableau mapping template for London, you can stop googling :) If you need other templates for the UK, you should check http://tableaumapping.bi

Tableau Mapping is a website where Tableau users share their maps created from open shape files, feel free to join them. Situation with shape files is complex as only in some countries the Statistics Offices publish them for free, so if you spot such file it's worth to give the link to Tableau Mapping.

26 June 2014

Devil's tooltip (ubertip) in Tableau

The official name of this tooltip's the ubertip, but the devil's tooltip shows its real nature.


Ubertips appear after clicking on row or column headers, when clicking on a mark or data item in the view, they don't appear.


15 June 2014

Simplifying shapefiles in MapShaper

Maps should be simple, simple to make and simple to use.

I simplify shape files to use them in Tableau but you can use them in other apps too.

Why should you do this?

Speaking in simple words Tableau draws maps by joining nodes with lines in order given by ShapeToTab. If there are many nodes Tableau has to work harder and performs slower. Besides that it is a great way of spending free time :)

11 June 2014

Arithmeum, part 1

I am planning to add a few posts about data in the real world, yes life and data also exist outside the internet. I have no idea how I will achieve this as I do not go out so often. Keep your fingers crossed :) 

If you are into a data analysis, you have argued with your data more than once. Pieces of data software have made you crazy. Be honest, you have insulted Excel or any other application. After reading this magical blog post you will appreciate modern data programs. You will purr like a kitty thinking of calculating on your computer.


I have visited Arithmeum, a museum devoted to calculating methods and machines. It is placed in Bonn, Germany

Население наиболее многочисленных национальностей по субъектам Российской Федерации

Если тебе интересна эта тема тоже стоит посмотреть эту визуализацию данных.
Я сравнила данные с переписи населения 2010 года с 1926 годом.


English version is here. 

25 May 2014

Poor diet

I've decided to spend one week living on the edge of poverty to get the data for the Tableau's Quantified Self Viz Contest. My food budget was $2.35 per day (it's calculated by government organization), I stayed in Poland so prices are from there.

17 May 2014

Ethnic minorities in Russia

I've found the old census data from 1926 and decided to give them a new life by comparing to the newest census.


I haven't included all ethnic minorities in Russia as there're some mistakes in the old censuses, I've checked all censuses between 1926 and 2010, some ethnic groups're in a few first censuses then they just disappeared and appeared again. Of course it made me crazy but life is like this. As a result of this predictable problem with the old censuses, I decide to use in my visualization only the biggest ethnic groups.

12 May 2014

Pyramid in Tableau

In the ancient Egypt building pyramids was a team work, now you can create a pyramid on your own. Though you can't use it as a grave, what can be a disadvantage...


27 April 2014

Russian text in Excel lost when saved as a CSV file

This problem could happen to everyone, even to you, maybe not to everyone as not everyone works with Russian text in Excel lol
The problem appears only when you're trying to save the text in a language other than your system's language, so if your system is in Russian and the file consists Russian text, you don't need to worry, this tutorial is not for you.

22 April 2014

Ethnic groups in Russia

Russia is home to over 185 ethnic groups, population of these groups vary from millions to few thousands. In some regions Russians are in the minority.

This topic is rich in data so later I will post more works.

17 April 2014

How to create polygon map based on image in Tableau - plan B

This tutorial is devoted to creating polygon map in Tableau based on image, I've done the tutorial giving similar results here.
Maybe you will find this way easier.

It's a good way of mapping places that aren't strongly connected to Longitude/Latitude. Shops in shopping centres have their geographical coordinates but of course nobody uses them, so map consisting general shapes without details is fine in such situation.

Top 30 countries with the highest military expenditure in 2013

Stockholm International Peace Research Institute (SIPRI) has published military expenditure for 2013. Global military expenditure totalled $1.75 trillion.

Just two states, USA and China, made nearly half of all military spending.


09 April 2014

How to create polygon map based on image in Tableau

This tutorial is based on the same way of thinking which is used by ShapeToTab. Creating ShapeToTab results without using ShapeToTab lol. In other words it is very easy to do :) 

We will be creating a map of shopping centre.

Gazprom's natural gas export structure to European and FSU countries in 2012

The largest buyers of the Russian gas were Germany (16% of Gazprom's export), Ukraine (15%), Turkey (12%) and Belarus (9%).
Gazprom Group in 2012 sold in total 151 bcm of natural gas to European countries and 66 bcm to FSU countries.

The data have been published by Gazprom in Gazprom in Figures 2008-2012