DFI Computer Programming thread

indiatester

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I am a SAS programmer and currently learning tableau. Next i will learn R and my goal is to become a data analyst. But the problem is i am from a non mathematics/statistics background and understanding and implementing statistical models is difficult for me. Any advice for me?
The truth of data analysis is that its a lot of "if-else" cases :)
You will do just fine.
 

The Ultranationalist

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The truth of data analysis is that its a lot of "if-else" cases :)
You will do just fine.
Kindly elaborate. As far as my knowledge goes, you must know the maths behind regression analysis, ANOVA, time series and forecasting models, Bayesian statistics etc. And that would require a lot of learning on my part. Doing statistical analysis is very much simple on SAS but the problem for me is interpreting the results.
 

Suryavanshi

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Nope. Thats the problem. I struggle with logarithm calculus etc. And these topics have wide applications in stats too.
So no mathematics in class 12, that's all right mate.
Here's what u can do.
Usually we studied RS Agarwal and RD sharma books for mathematics. Those books are good but u can get the grip of it only when u have a tutor or coaching.
I'll give u a easy approach.
Downlaod

-Thomas Calculus
This book is easy to understand and starts from kinder garden level to pro level.

But this book does't go deep into the concept part for that I have these recommendation
-Early Transcendental Calculus James Stewart
-Spivaku Calculus

Now get a BSc Mathematics book on Statistics.

Give 2 hrs a day for 3 months u will be all set.

If u have any problem discuss with your friends or post your problems here.
 

indiatester

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Kindly elaborate. As far as my knowledge goes, you must know the maths behind regression analysis, ANOVA, time series and forecasting models, Bayesian statistics etc. And that would require a lot of learning on my part. Doing statistical analysis is very much simple on SAS but the problem for me is interpreting the results.
This is a great book to get you started on Statistical Learning.
https://faculty.marshall.usc.edu/gareth-james/ISL/
Whats more, its free to download.

IMHO, we need more people who know how to use Data Analysis and not nuts and bolts of all of it. The analogy I use is that of the car. We need to know how to drive it and fix a few things here and there. Understand the internals enough to figure out which one is good. But not actually go about creating a new one.
Ofcourse, you can get that deep, but to ML/AI and Data Science needed in the world right now, a reasonable understanding of the concepts is sufficient. The book provides more than enough depth for what you want.
 

Sanatani

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This is OT. Sorry guys.
My kids school are going to start and I was looking for a basic Laptop around 25k for online classes. When I started looking I found Laptops from all companies have components from other manufacturers . HP,Lenovo,Dell,Acer none of them manufacture motherboard or CPU or HDD . Then how come they became so big names ?
 

Suryavanshi

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This is OT. Sorry guys.
My kids school are going to start and I was looking for a basic Laptop around 25k for online classes. When I started looking I found Laptops from all companies have components from other manufacturers . HP,Lenovo,Dell,Acer none of them manufacture motherboard or CPU or HDD . Then how come they became so big names ?
Almost all companies work like this.

Take lockhead martin for example, they make f22s, they're quite famous I'm sure u have heard of em.

They actually don't make all the parts themselves, they just do some key parts and software. They are basically a platform integrator.

Check this out f 22 has over 150 individual component suppliers.


The reason is very simple no one comapny can make every bolt to radar and engine of the plane.
Same thing applies to the electronic hardware Industy.

A Lenovo's laptops Cabinet and LCD is the only thing manufactured by them. Ram and memory is from Samsung, processor is from intel. Indivisual chipset is from different semiconductor companies. Battery Raw materials is from different company.

This is what Socialism and communism fails to understand, they think governments can be teh end all be all. The government can grow food to build rockets to sew cloths and everything imaginable.
 

Sanatani

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Almost all companies work like this.

Take lockhead martin for example, they make f22s, they're quite famous I'm sure u have heard of em.

They actual don't make all the parts themselves, they just do some key parts and software. They are basically a platform integrator.

Check this out f 22 has over 150 individual component suppliers.


The reason is very simpler no one comapny can make every bolt to radar and engien of the plane.
Same thing applied to the electronic hardware Industy.

A Lenovo's laptops Cabinet and LCD is the only thing manufactured by them. Ram and memory is from Samsung, processor is from intel. Indivisual chipset is from different semiconductor companies. Battery Raw materials is from different company.

This is what Socialism and communism fails to understand, they think governments can be teh end all be all. The government can grow food to build rockets to sew cloths and everything imaginable.
But not many Indian companies in these assembling companies ,though the assembly doesn't looks much difficult.
 

Sanatani

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A Lenovo's laptops Cabinet and LCD is the only thing manufactured by them. Ram and memory is from Samsung, processor is from intel. Indivisual chipset is from different semiconductor companies. Battery Raw materials is from different company.
Making a cabinet and LCD is not a big deal ,and if the major components are made by others, why don't we find many indigneous companies as integrator who can make a LCD and cabinet.
Just curious
 

Suryavanshi

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But not many Indian companies in these assembling companies ,though the assembly doesn't looks much difficult.
Thats because we missed the train.
China opened its ecnomy in 1980s, the time at which transistor age was at its peak. When the computer age came in 1995 to 2005 they were more than ready to make components. Now look at them they are ruling the cheap mobile phone market all over the world.
Political incompetence is the single most reason for the downfall of India.
Currently Modi isn't much better either.
 

Sridhar_TN

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Almost all companies work like this.

Take lockhead martin for example, they make f22s, they're quite famous I'm sure u have heard of em.

They actually don't make all the parts themselves, they just do some key parts and software. They are basically a platform integrator.

Check this out f 22 has over 150 individual component suppliers.


The reason is very simple no one comapny can make every bolt to radar and engine of the plane.
Same thing applies to the electronic hardware Industy.

A Lenovo's laptops Cabinet and LCD is the only thing manufactured by them. Ram and memory is from Samsung, processor is from intel. Indivisual chipset is from different semiconductor companies. Battery Raw materials is from different company.

This is what Socialism and communism fails to understand, they think governments can be teh end all be all. The government can grow food to build rockets to sew cloths and everything imaginable.
This is how all OEM’s work. From cars, to ships to planes to submarines to trucks to
Phones. If you have a strong supplier base, you make lasting products. Which is why such an ecosystem needs to be established.
Instead of siphoning all the funds toHAL or OFB, partition those to private players and build the know how.
 

Apollyon

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But not many Indian companies in these assembling companies ,though the assembly doesn't looks much difficult.
Dell is assembling their Inspiron series laptops in India. You can check their website.
 

Blue Water Navy

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You mean for the learning itself, or for the programming language specific part?
Actually a kid asked me. He wants to learn basics currently he is learning python. As most of the books of machine learning are for advanced users of python.
 

indiatester

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