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CP006: How to be a better analyst? – Road map for getting better at Data Analysis & Improving your career prospects

Last updated on April 26, 2014

Chandoo

In the 6th session of Chandoo.org podcast, we focus on making you a better analyst.

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What is in this session?

One of the most popular questions I get, goes like this:

I recently became an analyst. I want to succeed in my work. How do I go about it?

So in this episode, lets explore the road map to becoming a better analyst.

In this podcast, you will learn,

Announcement about Easter Egg hunt
Why become a better analyst?
The road map for becoming a better analyst – BETTER framework
B for Business Knowledge
E for Examining user needs
T for Thinking about analysis
T for Tools of Trade ie Excel
E for Expression
R for Refining yourself
Conclusions

See the mind-map aside (click on it to expand) to understand the BETTER framework.

Go ahead and listen to the show

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Links & Resources mentioned in this session:

Easter Egg Hunt:

Easter Egg hunt 2014
Previous years: 2013, 2012, 2011, 2010 & 2009.

Courses mentioned:

Spreadsheet Errors & Auditing

Transcript of this session:

Download this podcast transcript [PDF]

Are you becoming better analyst?

As a CEO of a small company, most of my time is spent on analysis & decision making. So I am always looking for ways to improve my skills.

What about you? How do you become better at your job. Please share your tips, ideas & inspiration in the comments.

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Excel Challenges

26 Responses to “Get busy this weekend, with OR XOR AND [Excel Homework]”

Stef@n says:

July 29, 2011 at 11:48 am

first solution for AND
The two numbers are in A1 and B1
= SUBSTITUTE (SUBSTITUTE (A1+B1*9*9, 9, 1), 8, 0)
regards
Stef@n

Reply
Stef@n says:

July 29, 2011 at 11:50 am

next solution for OR
=1*SUBSTITUTE (A1+A2;2;1)

regards
Stef@n

Reply
Stef@n says:

July 29, 2011 at 11:52 am

last solution for XOR
=1*SUBSTITUTE (A1+A2;2;0)

regards
Stef@n

Reply
Irvine says:

July 29, 2011 at 12:26 pm

Or you could make use of the VBA logical operators!

Define the following as custom functions
Public Function BITXOR(x As Long, y As Long)
BITXOR = x Xor y
End Function

Public Function BITAND(x As Long, y As Long)
BITAND = x And y
End Function

Public Function BITOR(x As Long, y As Long)
BITOR = x Or y
End Function

and then use them such:
A B =BITOR(A,B) =BITAND(A,B) =BITXOR(A,B)
0101 0100 0101 0100 0001

Reply
Stef@n says:

July 29, 2011 at 12:46 pm

an another solution for AND
=1*SUBSTITUTE (SUBSTITUTE (A1+A2;1;0);2;1)

note:
the binary numbers are in A1 and A2 !
regards
Stef@n

Reply
Shair says:

July 29, 2011 at 2:22 pm

I was obviously playing hooky at the beach during the bit-wise math lesson – you lost me at “Understanding bit-wise operations” 🙂

Reply
Anup Agarwal says:

July 30, 2011 at 8:46 am

After looking at the above solutions, I find my solution silly, but still:

For the following formulae,
Row 1: headers,
Row 2: OR
Row 3: AND
Row 4: XOR

Column 1: Input 1
Column 2: Input 2
Column 3: Result

OR
{=SUM(IF(MID(A2,ROW(OFFSET($A$1,0,0,LEN(A2),1)),1)+MID(B2,ROW(OFFSET($A$1,0,0,LEN(B2),1)),1)>0,1,0)*10^(LEN(A2)-ROW(OFFSET($A$1,0,0,LEN(B2),1))))}

AND
{=SUM(IF(MID(A3,ROW(OFFSET($A$1,0,0,LEN(A3),1)),1)+MID(B3,ROW(OFFSET($A$1,0,0,LEN(B3),1)),1)=2,1,0)*10^(LEN(A3)-ROW(OFFSET($A$1,0,0,LEN(B3),1))))}

XOR
{=SUM(IF(MID(A4,ROW(OFFSET($A$1,0,0,LEN(A4),1)),1)+MID(B4,ROW(OFFSET($A$1,0,0,LEN(B4),1)),1)=1,1,0)*10^(LEN(A4)-ROW(OFFSET($A$1,0,0,LEN(B4),1))))}

Reply
Hui... says:

July 31, 2011 at 11:57 pm

@Anup
Please don't consider your solution silly
Firstly, You are the 3rd person to submit an answer
Secondly, The best formula/function is the one that you know and understand.

Reply
Michael Azer says:

August 1, 2011 at 1:40 pm

I think I have a very tedious solution, which people won't have the patience to do except in small numbers.

I used the same problem setup as "Anup Agarwal"

AND =IF(AND(MID(B2,1,1)="1",MID(C2,1,1)="1"),1,0)&IF(AND(MID(B2,2,1)="1",MID(C2,2,1)="1"),1,0)&IF(AND(MID(B2,3,1)="1",MID(C2,3,1)="1"),1,0)&IF(AND(MID(B2,4,1)="1",MID(C2,4,1)="1"),1,0)

OR =IF(OR(MID(B3,1,1)="1",MID(C3,1,1)="1"),1,0)&IF(OR(MID(B3,2,1)="1",MID(C3,2,1)="1"),1,0)&IF(OR(MID(B3,3,1)="1",MID(C3,3,1)="1"),1,0)&IF(OR(MID(B3,4,1)="1",MID(C3,4,1)="1"),1,0)

=IF(OR(AND(MID(B4,1,1)="1",MID(C4,1,1)="0"),AND(MID(B4,1,1)="0",MID(C4,1,1)="1")),1,0)&IF(OR(AND(MID(B4,2,1)="1",MID(C4,2,1)="0"),AND(MID(B4,2,1)="0",MID(C4,2,1)="1")),1,0)&IF(OR(AND(MID(B4,3,1)="1",MID(C4,3,1)="0"),AND(MID(B4,3,1)="0",MID(C4,3,1)="1")),1,0)&IF(OR(AND(MID(B4,4,1)="1",MID(C4,4,1)="0"),AND(MID(B4,4,1)="0",MID(C4,4,1)="1")),1,0)

Reply
Michael Azer says:

August 1, 2011 at 1:43 pm

Sorry my last post was totally messed up

AND
=IF(AND(MID(B2,1,1)="1",MID(C2,1,1)="1"),1,0)&IF(AND(MID(B2,2,1)="1",MID(C2,2,1)="1"),1,0)&IF(AND(MID(B2,3,1)="1",MID(C2,3,1)="1"),1,0)&IF(AND(MID(B2,4,1)="1",MID(C2,4,1)="1"),1,0)
OR
=IF(OR(MID(B3,1,1)="1",MID(C3,1,1)="1"),1,0)&IF(OR(MID(B3,2,1)="1",MID(C3,2,1)="1"),1,0)&IF(OR(MID(B3,3,1)="1",MID(C3,3,1)="1"),1,0)&IF(OR(MID(B3,4,1)="1",MID(C3,4,1)="1"),1,0)
XOR
=IF(OR(AND(MID(B4,1,1)="1",MID(C4,1,1)="0"),AND(MID(B4,1,1)="0",MID(C4,1,1)="1")),1,0)&IF(OR(AND(MID(B4,2,1)="1",MID(C4,2,1)="0"),AND(MID(B4,2,1)="0",MID(C4,2,1)="1")),1,0)&IF(OR(AND(MID(B4,3,1)="1",MID(C4,3,1)="0"),AND(MID(B4,3,1)="0",MID(C4,3,1)="1")),1,0)&IF(OR(AND(MID(B4,4,1)="1",MID(C4,4,1)="0"),AND(MID(B4,4,1)="0",MID(C4,4,1)="1")),1,0)

Reply
Stephen says:

August 1, 2011 at 1:45 pm

@stefan,
I just couldn't get your solutions to work.
01010101010 + 01010101110 = 02020210120
what am i doing wrong?

Reply
Stephen says:

August 1, 2011 at 1:56 pm

@anup
...I got yours to work!

Reply
Rich says:

August 1, 2011 at 8:17 pm

@Stephen - I get the same, but Stef@an's second solution for AND does work (at least for the test cases I used)

Reply
Stef@n says:

August 2, 2011 at 9:09 am

@ Stephen / Rich
yes , you are right ! - only this works:

OR
=1*SUBSTITUTE (A1+A2;2;1)
XOR
=1*SUBSTITUTE (A1+A2;2;0)
AND
=1*SUBSTITUTE (SUBSTITUTE (A1+A2;1;0);2;1)

Reply
Michael Azer says:

August 3, 2011 at 1:36 pm

@Stef@n - You're answer is really smart, I never knew about the substitute function before. Great Work!

Reply
Stef@n says:

August 3, 2011 at 2:45 pm

Thx Michael 🙂
yes - it is simply easy 😉
if you add 1 and 1 - excel calculate 2
and then you have to substitute the 2 - new = 0 respectively 1

Reply
Rob says:

September 11, 2011 at 4:16 pm

Here is a good resource for people wanting to learn binary and hexadecimal.
http://justwebware.com/bitwise/bitwise.html

Reply
Kyle McGhee says:

January 29, 2012 at 3:57 pm

Three that weren't asked for:
NOT
=SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(A1+A2,0,3),1,0),3,1)

EQV
=SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(A1+A2,0,3),2,3),1,0),3,1)

IMP
=SUBSTITUTE(SUBSTITUTE(A1+SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(A2,0,3),1,0),3,1),0,1),2,0)

(was using Daniel Ferry's bitwise file to verify against)

Reply
Q says:

February 27, 2012 at 9:05 am

@ Kyle

Not only takes one parameter and inverts 0 -1 and 1-0

Took out the +A2
=SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(A1,0,3),1,0),3,1)

Reply
Richard Tallent says:

November 1, 2012 at 3:57 pm

Great solutions!

I'll add two:

NAND =1*SUBSTITUTE (A1+A2,2,0)

NOR=1*SUBSTITUTE(SUBSTITUTE (SUBSTITUTE(A1+A2,0,2),1,0),2,1)

Reply
John Fuller says:

August 29, 2014 at 4:15 pm

This will work for binary numbers of any size (although the text format mask will have to have as many zeroes as there are digits in the longest addend)

Assume binary #s are in C35 & C36, then add and format as text in C37:
=TEXT(C36+C35,"000000000000")
-sum- = 101112211112

AND - SUBSTITUTE 0s for 1s in -sum-, then sub 1s for 2s
=SUBSTITUTE(SUBSTITUTE(C37,"1","0"),"2","1")

OR - sub 1s for 2s in -sum-
=SUBSTITUTE(C37,"2","1")

XOR - sub 0s for 2s in -sum-
=SUBSTITUTE(C37,"2","0")

Reply
Shane says:

September 21, 2014 at 3:47 am

Just wandered by:

AND:

=SUBSTITUTE(A1+A2,1,0)/2

Reply
- xlpadawan says:
  
  September 22, 2014 at 2:22 pm
  
  Clever, Shane. I like that.
  
  Reply
How do I perform a XOR calucation of two binary numbers in excel 2007 - QuestionFocus says:

December 9, 2017 at 2:27 pm

[…] post http://www.excelhero.com/blog/2010/01/5-and-3-is-1.html for examples using Sumproduct, and http://chandoo.org/wp/2011/07/29/bitwise-operations-in-excel/ for examples using Text […]

Reply
Ronald Vonk says:

December 6, 2018 at 12:00 pm

Hi Chandoo,

I am not (yet) really into bitwise calculation, but I am looking for a way to speed up my vba calculation with very big numbers. Would is ben convenient to use bitwise notation for this?

Best regards,

Ronald (the Netherlands)
p.s. love your country!

Reply
- Hui... says:
  
  December 7, 2018 at 4:25 am
  
  @Ronald
  
  I'd suggest asking this in the Chandoo.org Forums
  https://chandoo.org/forum/
  
  Attach a sample file with an example of some data and describe what you want to achieve
  
  Reply

CP006: How to be a better analyst? – Road map for getting better at Data Analysis & Improving your career prospects

Chandoo

Subscribe to Chandoo.org Podcast

What is in this session?

Go ahead and listen to the show

Links & Resources mentioned in this session:

Easter Egg Hunt:

Courses mentioned:

Case Studies

Resources to learn Excel

Making Interactive Charts in Excel

Spreadsheet Errors & Auditing

Transcript of this session:

Are you becoming better analyst?

Get FREE Excel + Power BI Tips

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26 Responses to “Get busy this weekend, with OR XOR AND [Excel Homework]”

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