In this entry, we will show you how to create bookmarks and a few different scenarios where they might be useful. Bookmarks are basically used to store the status of a specific report page including the filter selection and the visibility of the different objects, allowing the user to return to that same status by simply selecting the saved bookmark.
In this blog post, we will show you some information regarding the new Power BI functionality known as Dataflow, that already exists in services such as Office 365. We must highlight that this new service is still in the Beta stages, so it is currently subject to modifications and updates.
Although SQL Server Integration Services, hereinafter SSIS, is capable of uploading Excel files, in most cases it can be time consuming because any small modifications to the Excel files can make the SSIS crash. For that reason, the best option is usually to transform those Excel files into .csv format, since uploading text files will cause you significantly less issues than the Excel files.
You can quickly save any Excel file as csv manually by saving as .csv from within Excel. However, it becomes an issue when you have to do the same for a lot of Excel files, or in cases were you need the change to be done automatically.
In this post, we will explain how to do this format change automatically using PowerShell and how to loop through files in the same directory in order to upload several Excel files together using SSIS as the main tool for the whole process.
Measure the Strength of Association Between Two Categorical Variables: Mosaic Plot and Chi-Square Test
In a Data Science project it’s really important to get the more insights out of your data. There is a specific phase, the first one in the project, that has the data analysis as goal: the Data Exploration phase.
Among other kinds of analysis, one of the most interesting is the bi-variate one, that finds out the relationship between two variables. If the two variables are categorical, the most common plot used to analyze their relationship is the mosaic plot. At first sight it may appear a little bit confusing. People not aware of some statistical concepts can miss important information this plot can give us. So, we’ll go a little bit deeper in these concepts.
Read the rest of the article here.
Am I getting the most out of my Dashboards?
We already know that when a company has to decide whether to invest in a Business Intelligence project, it has to find the answers to all the questions that arise about its effectiveness: Are we really going to get anything out of it? Will it give us the information we need? Will it be beneficial for us? In many cases, it is difficult for companies to have the answer to all these questions, especially when we are in the early stages of the project. (more…)
The increasing diversification of the type and volume of data, the lowering of computational processing costs and storage costs have opened a window of opportunity for the resurgence of a discipline that already existed on paper and among equations: Machine Learning.
What is Machine Learning?
Microsoft’s Business Analytics Service Power BI, enables us to connect to hundreds of data sources and produce beautiful reports that can be consumed on the web and across mobile devices, in order to deliver insights throughout our entire organization. In this post, I will walk you through the process to get data in Power BI from Oracle Database.
When you open Power BI Desktop, you will see the following window: (more…)
In this post, we will code a script in python (with Visual Studio 2017) to create a program which we can execute as a windows service in order to extract (in almost real time) the tweets related to certain words or hashtags, store them in a SQL server database, and then consume them with Power BI. (more…)
Today we will show you how we can refresh a dataset published in Power BI from a Power Shell Script that we would invoke at the end of our ETL process.
We will use the Power BI libraries for power shell to connect to our power Bi portal and send an instruction to refresh a data set. This could be useful to improve our ETL processes, refreshing our on-line datasets used in Power Bi portal before loading data into our data-warehouse and/or our OLAP/Tabular database send an instruction to. (more…)
In this post, we will talk about the new property that appears in the SQL 2016 version: Auto Adjust Buffer Size. This attribute is specific to the “DataFlow” component and can take the values of ‘True’ or ‘False’ (default). Furthermore, we will propose an approximate solution for previous versions.