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SAS SQL : Find records only exist in one table but not other
It is one of the most common data manipulation problem to find records that exist only in table 1 but not in table 2. This post includes 3 methods with PROC SQL and 1 method with data step to solve it....
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SAS : INTCK Function with Examples
The INTCK is one of the most important date function that is used to calculate the difference between two dates, two times or two datetime values.The following is a list of common real-world examples...
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Wish Christmas with SAS
This post is dedicated to the lovers of SAS programming language. Flaunt your knowledge in your peer group with the following SAS program 😊 It's one of the stupidest and coolest way to make simple...
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SAS : Count Missing and Non missing Across Columns
This post explains how to count number of missing (blanks) and non missing (non blank) values across multiple columns. It's very easy to calculate it with SAS. It's one of the common data manipulation...
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Free SAS Access - No Install Required
Accessing SAS was never so easy. With SAS OnDemand for Academics software, SAS is just a click away! Yes, you hear it right. We can access SAS software for free by just logging to a SAS website. No...
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Companies using R
R is a free programming language for data analysis, statistical modeling and visualization. It is one of the most popular tool in predictive modeling world. Its popularity is getting better day by day....
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SAS Date Formats and Informats
This tutorial describes the usage of SAS Date formats and informats. It includes practical real-world data problems related to SAS formats.What are Formats and Informats?Informats is used to tell SAS...
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Data Analyst Interview Questions
This tutorial explains common and tricky data analyst interview questions with answers. The main responsibility of data analyst is to generate insights from data and present it to stakeholders such as...
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Support Vector Machines Simplified using R
This tutorial describes theory and practical application of Support Vector Machines (SVM) with R code. It's a very popular supervised learning algorithm. It works both for classification and regression...
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Calculating Driving Distance with SAS
This tutorial demonstrates how to calculate driving distance with SAS. Calculating travelling distance between two locations is an important step of Geo Spatial Analysis. Today geo analytics or network...
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SAS : INTNX Function with Examples
This tutorial explains how SAS INTNX function works. It includes explanation of INTNX function with practical examples which would help you to understand it.SAS INTNX : IntroductionSAS function INTNX...
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Understanding Bias-Variance Tradeoff
This tutorial explains the concept of bias-variance tradeoff in machine learning. It is one of the most commonly confused term in predictive modeling world.BiasIt refers to model fitting the training...
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Import Data in Python
This tutorial explains various methods to read data into Python. Data can be in any of the popular formats - CSV, TXT, XLS/XLSX (Excel), sas7bdat (SAS), Rdata (R) etc.Import Data into PythonWhile...
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Detecting Interaction in Regression Model
This tutorial talks about the easy and effective method to detect interaction in a regression model.What is InteractionInteraction is defined as a combinations of variables. If the dependent variable...
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SAS : Calculate AUC of Validation Data
This tutorial explains how to calculate area under curve (AUC) of validation sample. The AUC of validation sample is calculated by applying coefficients (estimates) derived from training sample to...
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Extract last 4 values of variable in SAS
This tutorial explains how to extract last n characters or numbers of a variable in SAS. In this tutorial, we will cover several cases in which we pull last 4 character or numeric values from a column....
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Predictive Modeling Interview Questions and Answers
Predictive modeling knowledge is one of the most sought-after skill today. It is in demand these days. It is being used in almost every domain ranging from finance, retail to manufacturing. It is being...
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R : If Else and Nested If Else
If Else and Nested If Else in RThe If Else statements are important part of R programming. In this tutorial, we will see various ways to apply conditional statements (If..Else If..Else) in R. In R,...
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Partial and Semipartial Correlation
Partial correlation measures linear relationship between two variables, while controlling the effect of one or more variable. In this tutorial, we will see the difference between partial and...
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Facebook Data Mining using R
In this tutorial, we will see how to extract and analyze facebook data using R. Facebook has crossed more than 1 billion active users. Facebook has gathered the most extensive data set ever about...
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