Siddharth Sahasrabudhe @PlotlyAnalytics

Bar charts are used to show the comparison of numeric values of a categorical variable. The height of bar is proportional to the value of the variable. Bar charts are also used to show the frequency of observed values of the variable. youtu.be/97JosTfSUC4

Scatter plot plots numerical value of one variable against the other. It also graphically shows how each variable relates to others. In this video we will generate scatter plot and scatter plot matrix. youtu.be/uKhFtToXh_M

Please check my Youtube video on lapply( ) and sapply( ) functions. The letter l in front of apply stands for lists. The output of lapply( ) function is always a list. If we want the output in a vector or in a matrix form, we can use sapply( ) function. youtu.be/yEULOJ2bnL0

apply( ) family of functions in R allows you to repetitively perform a specified function across vector, list, matrix, or data frame. The apply family of functions can be written in one single liner. Learn bout apply() function in this youtube video: youtu.be/hdfYGutxH1U

Check out my You-tube video on R custom functions. R is functional programming language i.e. there is a function available for every operation we perform in R. Writing functions is a core activity of an R programmer. youtu.be/837E8nzf5Yk

How to write a FOR loop if you don't know the number of iterations? You can't write FOR loop in this case...but you can write WHILE loop.. check out my you-tube video on how to construct WHILE loops in R? youtu.be/Z_ystr0j2g4

There are two types of transformation: linear transformation and nonlinear transformation. Linear transformation preserves the shape of original distribution, while in non-linear transformation, the shape of the original distribution is changed. linkedin.com/pulse/brief-in…

The for loop is used to execute repetitive code statements for multiple number of times. To execute a for loop, we need to specify a vector and a variable. Learn about FOR loops in R in my youtube video: youtu.be/4fKCyleTRAo

Switch function behaves the same way as set of stacked if-else statements. Switch statement serve as convenient short cut to stacked if else statements..the if-else code could be collapsed to one line switch statement as we will see in the video. youtu.be/wvxORD3eDCI

IF-statement in r programming allows you to control the flow and order of execution in your code. Learn how to construct If statement from my Youtube video: youtu.be/0R_4dvQcR1o

The central limit theorem is of crucial importance in using statistical inference to reach conclusion about the population. check out my blog post to get intuitive understanding of central limit theorem. linkedin.com/pulse/intuitiv…

What is difference between sample and population? What is difference between parameter and statistics? What is representative sample? What is random sampling? find out the answers to these questions from my blog post on Introduction to Sampling theory! linkedin.com/pulse/gentle-i…

In business, the CSV and EXCEL file formats are most often used. In this video and couple of upcoming videos we will learn how to import CSV and EXCEL files in R. In this video, we will learn how to import CSV file using RStudio interface. youtu.be/Y-lt3QVA_3Y

What is difference between sample and population. What is difference between parameter and statistics? What is random sampling and why it is so important? Find answers to these questions in my tutorial: plotlyanalytics.com/a-gentle-intro…

Check out my new You-tube video on R data frames. Data frames are so important data structures in R, since they will be used in almost all data analysis tasks. In this video you will create data frame and work with it using some useful functions youtu.be/39MW4DFRbnw

A Factor is a data structure that is used to work with categorical data. Factors are not different from character, but they take limited number of values. check out my Youtube video on Factors: youtu.be/qSkiEoJ2UTY

Is your data Normal? A gentle introduction to Normality Tests. There are range of techniques that you can use to check if your data sample deviates from a Gaussian distribution, called normality tests. Check the blog post on: linkedin.com/pulse/your-dat…

Accessing elements from a list is rather tricky. You can do it in two ways. You can access the list objects only, or you can access the elements inside a list objects. The results are very different depending on the method you choose.. youtu.be/gPTzYQcSesY

Check out my Youtube video on list. Lists are the most flexible data structures in R. In this video, we will learn. - the structure of a list - how to create a list - how to name a list elements youtu.be/c6ZgbXkhUao

Many variables in business and industry are normally distributed. - Annual stock returns - Statistical process control - items filled by machines In this tutorial you will learn how to use Normal distribution on real world business problem. plotlyanalytics.com/an-intuitive-u…