A software to generate graphs form a transaction file.
With the generated file output.csv, you can create a Pie or an Histogram in Google docs or Excel.
It will group transactions by "categories" and sum the associated amounts of each categories.
A category is determined by a set of labels which looks identical.

git clone https://github.com/sudogooglex/GenerateGraphs
cd GenerateGraphs/
cp config.txt configTemplate.txt
The transaction file path must be specified at the first line of the config.txt file.
dotnet restore # Restore Nuget packages
dotnet clean
dotnet run

/home/user/Download/transaction.csv
Word1
((\d{2})([./]{1})(\d{2})([./]{1})(\d{2}))

Date; Label; Amount
23/06/2017; CB TRANSACTION Shop_A1 22.06.17 CARD; -50,00
19/06/2017; BUY CB Shop_B1 17.06.17 CARD; 48,92
08/06/2017; BUY CB Shop_A2 07.06.17 CARD; -15,01

The transaction.csv may contain positive or negative amounts.

The output file is output.csv, at the root of the project.
To generate the associated graph, use Google docs or Excel with the output.csv. Create a Pie or an histogram.

Category; TotalAmount
CategoryA; -65,01
CategoryB; 48,92

To filter some words before making categories, you can add regex in the config.txt.