Tutorials

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Python Programming Tutorial- Expressions and Variables

‘Python Programming Tutorial- Expressions and Variables’ post is follow up to ‘Types in Python Explained- Built-in Data types‘. All posts in this series are based on course “Python For Data Science” at cognitiveclass.ai. Python Expressions Expressions are operations that Python performs. For example, basic arithmetic operations like adding multiple numbers. You can check in Jupyter Notebooks by […]

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Python Programming- Strings explained

‘Python Programming- Strings explained’ post is follow up to Python Programming Tutorial- Expressions and Variables post. All posts in this series are based on course “Python For Data Science” at cognitiveclass.ai. Watch the Video Python Strings Python has a built-in string class named “str” with many handy features. A ‘string’ is simply a list of characters in order. A character is anything you can […]

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Python Tutorials | Pandas Methods to Analyze your Data

Master Panda is at His Best Our post ‘Pandas Methods to Analyze your Data’ is based on  Data Analysis with Python  online course at cognitiveclass.ai.  In this post we will learn various Pandas Methods to Analyze your data. Hope you have gone through Importing and Exporting Data(CSV format) in Python- Pandas way  post, if you are not then please do, as this […]

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SAS SMC (SAS Management Console) Interview Questions

Be assured if you are appearing for SAS based Job of any kind be it Programmer, Analyst, or SAS VA Developer, you may come across question related to SAS Management Console. 1.How to use SAS Management Console to create SAS folders and SAS libraries and to register tables. 2.How to register tables with SAS Visual […]

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One sample t-test with SAS- Step Wise

We want to study a Population and its representative sample which has a single Continuous variable. Our initial examinations are:- 1.what is the confidence interval of the population mean? 2.How to test a hypothesis made on population mean. The single-sample t-test compares the mean of the sample to the value we want it be.

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Top Basic Statistics Free Courses for Data Science Online

Want to Learn Statistics for Entry in Futuristic Data Science World, Look No further we have curated some Top Basic Statistics Free Courses for Data Science Links for You. These courses are free of Cost but Best i Say even not many paid courses can come Close. Let us Start Listing These courses. 1.ProbStat – […]

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SAS DLM, DLMSTR, DELIMITER, DSD options and DATALINES4 Statement

I have tried to explain SAS DLM,DLMSTR,DELIMITER options and SAS DATALINES4 Statement through simple examples. /* default delimiter is blank. */ /* with the delimiter= or DLM= or DLMSTR= option in the INFILE statement. */ data set1; length n1 $ 12; input n1 $ s1 s2; datalines; R 11 4435 H 10 110 ; run; data set1; […]

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Python Packages for Data Science- Short Intro

I am religiously following the Data Analysis with Python online course at cognitiveclass.ai. I have found the courses at cognitiveclass.ai interesting and informative. Courses are very simple and requires your utmost attention. They have correctly stayed away from being over interactive(yes this is the very bad trend spread across most of Data science course found online). My only concern […]

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SAS Character Functions quick revision for Interview

use a LENGTH statement to set the desired length of a character variable use the concatenation operator (| |) to join two or more character strings use the COMPBL function to convert multiple blanks in a character string to a single blank use the COMPRESS function to remove characters from a string use the VERIFY […]

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