Grab the file I used in the video from here 👉 pages.xelplus.com/lambda-file

You know you are lost to humanity when you get excited for a new function on Excel 😂😂😂 You rock Leila !

She's a genius. Someone give her the Nobel prize right now.

@awesh1986

2 жыл бұрын

Agree

Do I know Excel? Not at all. People call me an Excel trainer but I think every time I watch an amazing video of yours it just makes me feel, super awesome. Thanks a lot for all the wonderful video content you keep posting.

The most powerful statement you made was right at the end. The next generation of excel users will be intuitively learning functional programing techniques. I suspect that this was perhaps the deeper reason behind Simon Peyton Jones decision to join Microsoft. Personally I am delighted as I know from experience that it takes time to become fluent with these techniques.

@cmukesh19

2 жыл бұрын

Absolutely agree. I was in the camp that VBA aged, and we should provide support for language such as Python/ R natively in Excel. But after seeing these recent paradigm shift in Excel programmability, I'll agree that I was short sighted. Any general-purpose programming language is a distraction for the population who uses Excel. I am a programmer, and still love Excel as it allows you to focus on the activity rather than how to do it. Lambda (and all the recent functions to support it) feel so tightly integrated. This is probably the best evolution in Excel, ever.

@butterplum2053

2 ай бұрын

That’s interesting-SPJ has worked a lot on the same kinds of things-perhaps with more emphasis on formal methods intersecting with domain languages. He seemed to weigh in stuff like formal methods in secure operating systems, while still being hyper focused on thinking about language ecosystems like his comparisons about Java. Having just stopped running a company I am back in a job in finance, yet I still have a heavy addiction to programming. This is giving me exactly what I need to stay interested in what I’m doing. I’m seeing that there’s actually good structure here-and it is textbook ML style FP. However I still get bugged by the functions not being first class polymorphic functions where you can pass in labels with values dependent on higher order functions though. Example…I’m typing in a structured reference this morning like to a table called [APR] which is also a name of a table column like [@[APR]], and yet there are no operads for me to touch the concept of the string-it’s still objects. It’s still something that is not well defined in the sense of Grothendieck Universes, Agda, or even Haskell’s system F. Another example-I’m writing a Sumif with structured references and embedded conditional criteria-but it’s dax sometimes and it’s something else other times. I can’t know how the value will be represented in memory-will an embedded conditional be passed up to a Calling function, hit a type error I never see, or is it simply an undefined parameterization because the designers didn’t intend for users to make criteria into multi-function call chains? I’ve been in the lisp world a bit more than usual these past several months entertaining myself with nix and I can never imagine doing series fast paced corporate work with those-only building systems. And yet these don’t have the barriers that make it harder to express deep relationships about data and the many people oriented issues around that data. You’ve gotta write most stuff yourself, and outside of excel it’s not gonna be in some nice text editing space where the rules are standard. For example, no two emacs configs are alike. Just check out the many inconsistencies in packages between scala, OCaml, python, R, Rust, or Clojure, all kinda functional interfaces but not completely pure or well founded, and yet they still don’t really have great workspaces like an excel sheet or a power query editor. Kinda amazing.

This is just so mind-blowing that I don't mind feeling a little nerd watching an Excel video on a weekend! 😂🤯

@reng7777

Ай бұрын

ME TOO!!

WOW! I don't know what to say. I'm a bit overwhelmed but fascinated.

@at-excel

3 жыл бұрын

Welcome in my world ;-)

Leila, watching your videos is like the quote: The MORE I know, the more I know How LESS I know.... Thank you for your efforts to make us understand this powerful function Lambda... Super Exited to start applying it for the tasks which were incomplete in past without looping functionality in Excel built-in functions

I come from a Python background and always wished there was a way to use loops in Excel without having to learn VBA. This video was my answer. Thanks!

Great explanation of this concept. Note that the name you give your parameters will appear in the function screen tips (the little pop-up that comes under your function when you are inside it). So if you name them "Text", "Before" and "After" instead of t, b and a, then it will be much easier for the user to figure out what to input in each parameter.

This the best explanation of the recursive lambda I have seen thanks,

@trs80model14

6 ай бұрын

Indeed it is, she chose a good example and explained it clearly, without going too fast. Well done Leila!

Finally the ability to add coding, looping logic without VBA. Very nice and well explained . As always.

The universe is expanding! What's next - introducing for and while loops as functions in Excel maybe?! That will be awesome!

@4verse79

3 жыл бұрын

Or one could simply use VBA ...

@ernahubbard2062

3 жыл бұрын

@@4verse79 VBA gets complicated when a file needs to be stored on cloud or shared with different people.

@shanelabuff7457

3 жыл бұрын

@@4verse79 VBA functions are notoriously slower than inbuilt excel functions. LAMBDA essentially allows you create custom inbuilt functions at the speed of the inbuilt functions.

@shanelabuff7457

3 жыл бұрын

It exists in this video :) if(t="",t, MegaReplace(... AKA while t "" DO (function) t +=1 (or t = t + 1)

@pmlover1810

2 жыл бұрын

@@4verse79 a bit salty that the time it took to master vba will one day be rendered inefficient with these inbuilt functions

Great!! Wrote a recursive lambda that can handle the whole string column array RPLAB(ar,a,b,i)=LAMBDA(ar,a,b,i,LET(r,ROWS(a),IF(i=r+1,ar,RPLAB(SUBSTITUTE(ar,INDEX(a,i),INDEX(b,i)),a,b,i+1)))) --replace a with b for array ar and i=1 If you don't like extra variable i we write another one REPLACEAB(ar,a,b)=LAMBDA(ar,a,b,RPLAB(ar,a,b,1)) Anyhow "i" can be very handy in case you want to start the search from a different index in the replace list.

This would be the most exciting video you've done! Crystal clear explanation of recursive use of the Lambda function. Brilliant, thank you.

@LeilaGharani

3 жыл бұрын

Wow, thank you!

I think Excel is reaching its new heights in applications. Everyday it is providing something new.

@LeilaGharani

3 жыл бұрын

True. Lots of great developments recently.

Used Python for most of my data work but at my new job was forced to use Excel. Your tutorials have been a blessing. Really appreciate the work you put on these!

@LeilaGharani

3 жыл бұрын

Our pleasure, Daniel!

This is just so great with your excellent explanation, been waiting for this second part of Lambda.

This opens up Pandora's box, Now we have a tool to work on - try and try. Relate to our previous work, test where you can use it and create future intelligence. Thanks a Lot Lela

Hey Leila, Big fan and have been watching you for years. I recently came across the magic of Map and Lambda in Google sheets / Excel and I would definitely would love to take it for a spin. I haven’t had the chance to use recursive lambda but one day, for sure.

@LeilaGharani

6 ай бұрын

Sounds great!

I love this! This is super interesting. It's like programming visual basic inside a cell without the actual vb language. Thanks for this video! :)

@LeilaGharani

3 жыл бұрын

True 😁

@davidmaes3253

2 жыл бұрын

My thoughts excactly.

Hello Leila, you are very intelligent, a very good teacher and the best: very beautiful!

I love your teaching style. Great job explaining such a complex concept!

Happy new year! and with your amazing videos the year in the office will be more than wonderful!

It's really amazing! Thank you, Leyla, for sharing these super interesting news!

I have been waiting for this! Very exciting!

With BYROW and BYCOL this example can be done a lot easier, with the difference, that you will have to select the whole range of replacement words and not just the first cell. Thanks for the F2 tip in name manager that was super anoying until now.

@x-el.s

9 ай бұрын

you are right! REDUCE might also help this to be leaner. (great video though :))

Just great. Perfect explanation, no useless info, to the point!

Excellent data hygiene tool! Can't wait to watch your next tutorial on this function.

Oh, Leila - this is an eye-opener! Thanks for sharing your knowledge. Actually I've got so many ideas to realize with LAMBDA, but recursive functions double the impact of this function. Can't wait to get the function at my insider-installation. Und ich hoffe auf 2021! Frohe Weihnachten und bleib gesund, Andreas.

@LeilaGharani

3 жыл бұрын

It really is a great development. Auch dir Frohe Weihnachten und ein gutes Neues Jahr!

Brilliant. Couldn't stop saying this. I am really in love with these videos

You explained this PERFECTLY. You are the BEST!

You make it look so easy, yet I’m sitting here thinking you’re using some form of magic. 🧐 What? How? 🤪 I love watching an artist at work. The ability to start with nothing and end up with something beautiful.🤩

@LeilaGharani

Ай бұрын

😊 thank you. It's definitely not the easiest topic 😁

Lambda functions are really powerfull. We, the developers, don't even know how much it will impact sheets creations from now on. I can already see people creating libraries full of personalized lambda functions to expand what Excel can do. I didn't really had time to do it, but I imagine that we finally can have fully optmizable neural networks or genetic algorithms working in Excel without any VBA or usage of Solver, just with lambda functions.

@dchager

3 жыл бұрын

I had already thought of this implementation, but thanks for the confirmation that you believe that it can be done.

@LeilaGharani

3 жыл бұрын

Sky is the limit 😊

So finally the Thursday Video on LAMBDA is here! Thank you Leila for the nice example and simple explanation! Now waiting for this to become common to all users from Microsoft, for using it practically in some of my data processing challenges! 😊👍

@LeilaGharani

3 жыл бұрын

Thanks Vijay. Can't wait for this to become generally available.

Amazing -- you explain this so clearly :) I am excited to try this out

This is definitely advanced. I thought I was an advanced user, but I did not know Excel could do this.

Yep - it was definitely worth the wait since watching part 1! Thanks and liked the simple yet effective explanation on the term 'recursive', especially with the visual flow aid

@LeilaGharani

3 жыл бұрын

Great to hear!

Hi Leila. Awesome lesson and example! I love making VBA UDFs and it is kind of sad that VBA is at a dead end in terms of attention from Microsoft. But, these LAMBDAs look like fun and super powerful. Looking forward to testing them soon. Thanks for sharing :)) Thumbs up!!

Another Thursday 'Must-Watch' date with Leila … but today's OMG moments required a pot of black coffee to watch both Lamdda videos three times … and I still have much work to do. For me, many of these functions are like getting a drink of water with a firehose … but the ideas … ideas … ideas are numerous!!! I leave hard copy post-it notes and digital post-it notes all over my financial models to remind myself to review again and incorporate Leila's lessons. Overwhelming … but so good … so well explained. As always … your are a treasure … thank you … thank you … thank you …

@LeilaGharani

3 жыл бұрын

Trust me, it took me a long time and a lot of post-its to get the hang of it. But when it finally clicks it offers so many amazing possibilities. As always, thanks for your support!

For real, this can sound stupid, but only the F2 trick to move with arrows earned you my sub. Thanks for not skipping small details.

@LeilaGharani

3 жыл бұрын

That's great! Welcome aboard.

What a fantastic feature, and what a fantastic video. Thank you Leila!

@LeilaGharani

3 жыл бұрын

Many thanks, Adrian!

1 comment...always waiting for ur videos

@Galileo2pi

3 жыл бұрын

She is one of the best, and her courses are pretty good; I'd say crucial if you want to know how to work with Excel in deep.

@surajnirankari7623

3 жыл бұрын

@@Galileo2pi yes.

@LeilaGharani

3 жыл бұрын

Thank you so much 😀

so well explained! thank you!

Very well explained Thank u Leila

Great technique! This technique won't be clear to you if you dont understand loops in programming. With good understanding of loops, this Lambda technique would be clearer. Coding skill is becoming a must for the next gen of Excel power users really.

Thanks a lot for this very helpful presentation. It's clear that LAMBDA is an other great improvement for an advanced Excel user. 💪

Amazing tutorial. Well done

I remember this example from the Power Query List.Accumulate lecture! Great to see there is a new way to achieve this coming.

Great thinking from you, nice development. I feel like going back to my programming classes right now 💐

I knew that Excel is very powerful but that powerful is shocker! Thanks Leila for teaching that other dimension of Excel so advanced and yet practical!

@LeilaGharani

5 ай бұрын

Glad you enjoyed it!

Amazing, thanks Leila!

Great videos, thank you

Super. Thanks Leila ❤👍🌹

Cristal clear! As always! Hmmm, I think I'm repetitive lately. I'm running out of appreciation adjectives for your pearls on Excel 😀😀😀 Leila, Bravo Zulu!

@LeilaGharani

3 жыл бұрын

That's very kind. Repetition is always good 😁

My god what you sharing is worth every penny..

It will take a while to get my head around this one but with your help I've started. You have become my goto for anything Excel...Thanks!!

@LeilaGharani

3 жыл бұрын

Thank you, Robert!

You are such a great teacher!!!

amazing to see that it is possible now to create lambda functions in excel and that no vba is required 😀. Big game changer! Great explanation, thanks!

@LeilaGharani

3 жыл бұрын

Glad it was helpful!

Best of your awesome videos so far that I've seen 👌

@LeilaGharani

2 жыл бұрын

Wow, thanks!

I have NO IDEA how you managed to pack so much into a video that length. I had a column of data where I need to strip out multiple extra words before and after the value I wanted to end up with. I tried it with a series of SUBSTITUTE commands, which worked, but required me to create a new column for each pattern to replace. Then I tried it again using your MegaReplace, and it worked like magic!

@LeilaGharani

3 күн бұрын

Glad it was helpful, Anthony!

Brilliant, Brilliant, Brilliant. LAMDA stuffed with IF, SUBSTITUTE and OFFSET WoW !!. I think this function was invented by someone eating stuffed Turkey in a thanks giving dinner. Amazing decoding. What a function to close 2020 ! Cheers Leila !

@LeilaGharani

3 жыл бұрын

Haha, not sure about the stuffed turkey but it sure is an amazing development 😂

Wow. It's a Christimas gift before Christmas. I just activated the beta channel so I be able to use Lambda. It will save me a lot of time and make my workbook easier to understand.

@LeilaGharani

3 жыл бұрын

Christmas came early for me too this year :)

Excellent as usual and very well explained. Thank you Leila.

@LeilaGharani

3 жыл бұрын

You're very welcome!

A new level of Ms Excel! Thanks Leila!

@LeilaGharani

3 жыл бұрын

You're very welcome!

Thanks Leila for providing such a detailed explanation. I am sure you will come up with even more amazing examples of Lambda’s use. Have a great Xmas 😃

@LeilaGharani

3 жыл бұрын

My pleasure 😊 Merry Xmas to you too!

Thanks for teach and share with us !

OMG, that's great I need to see it again and again, thank you Leila for teaching me a lot of things about Excel

@LeilaGharani

3 жыл бұрын

You're very welcome!

This is just awesome

Another great video and wonderful explanations. I still don't have this LAMBDA function but, thanks to you, I'll be ready for it. At last, I hope so. ;-) Oh, and I love it when you say "…here is how things can get complicated…". With Excel and people like you, life is never boring, there's always something to learn. So, a big thank you.

@LeilaGharani

3 жыл бұрын

Thank you, Claire!

Very exciting! 10Q Leila!

That's really awesome!

Wow, Leila! This example is exceptionally cool in that it would allow you to add to your list of errors(b) and corrections(a) that it can fix without any change to your formula.

@LeilaGharani

3 жыл бұрын

Thank you! Yes. It's great that it's dynamic and no need for refresh or updating formulas.

impressive Many thanks Leila

You are a brilliant tutor. Thanks

Thanks for this video.

Wow so now we are having not only a custom functions in Excel but also a custom recursive ones... Thanks a million Laila

@LeilaGharani

3 жыл бұрын

You are welcome, Ibrahim 😊

Awesome, super Thank you

Love it! Love to problem solve so already imagining how to utilize it.

I’m going to be re-writing a lot of functions with this! I would be really helpful to have the pop up for the parameters when writing the function. Maybe, in addition to a comments section in name manager, there could be an option to add the parameters. Enjoying your videos!

Mind Blowing

Leila: Beautiful example, thanks

Wow. Great function and great explanation of new features

@LeilaGharani

3 жыл бұрын

That's really a great development in Excel. Thanks for watching!

Really well done, Leila! Can't wait until I have access to LAMBDA, even tho I have Microsoft 365 Insider!!

@at-excel

3 жыл бұрын

Hi Bob, I guess anyone of us is waiting for it. I've got three tenants and installations with different Insider installations, but no LAMBDA at all :-( Merry XMAS. Hope to see you next time in London or Amsterdam.

@bobumlas6562

3 жыл бұрын

@@at-excel I'm hosting the London event - GlobalExcelSummit.com (as well as leading one session)

@LeilaGharani

3 жыл бұрын

Thanks Bob 😊. I had that issue with StockHistory. It took forever to show up in my beta version.

You have an excellent brain! This is very complicated, but you make it appear reasonable when you are explaining it. After you were done I realized that it is beyond me. However, it was wonderful and interesting just to listen to you.

@LeilaGharani

3 жыл бұрын

It definitely takes some time to get the hang of it.

Incredible example!!!!

That's amazing!

Thank you! I have wanted a way to do this on many occasions.

This is going to help in many more ways which is hard to perceive at this moment as the function is new and limited in examples. Look forward to more examples in its application.

Excellent use case .. opens so many possibilities!!

Thanks for this video. Many people do not even realize what a huge analytical tool Excel is.

@LeilaGharani

3 жыл бұрын

You're very welcome! Absolutely.

Excellent presentation!

@LeilaGharani

3 жыл бұрын

Thank you kindly, Eddie!

As always, great, you're one of the best on this matter, terrific. Thanks

@LeilaGharani

3 жыл бұрын

Wow, thank you!

@Galileo2pi

3 жыл бұрын

@@LeilaGharani, this is true, and we have to acknowledge that there is hard work and, of course, deep knowledge behind these videos. And your courses are a good way to know Excel to work with; it is a good platform for learning, and your team is great.

Hi Leila. Awesome! I developed recursive functions when programming in LISP years ago, with a twist in that the function was able to modify iteslf on the fly during recursions and do things that I couldn't figure out how to implement any other way. I have missed that power since moving on to other languages. Great to see this functionality in Excel!

@DaveSlavens

Жыл бұрын

Now there's a programing language I haven't touched in a VERY long time!! LISP = Lost in Stupid Parenesis

Thank you Leila!

Wow, i am blown by the power of this function. Excell is slowly stepping into coding territory my head is still spinning but I will get it. thank you Leila :)

@LeilaGharani

3 жыл бұрын

My pleasure :)

It's wonderful!!

Thanks for giving such wonderful knowledge

@LeilaGharani

3 жыл бұрын

It's my pleasure

This is extraordinary! Thanks for the detailed explanation. bravo!

@LeilaGharani

3 жыл бұрын

Glad you enjoyed it!

GENIUS!!