3 жыл бұрын
3 жыл бұрын
3 жыл бұрын
Пікірлер
@humbertoperinni 5 ай бұрын
Thank you, sir.
@SoviaRahmaniaWarda 5 ай бұрын
Hello sir, do you have tutorial video for CBM simulation process in excel? Thankyou
@bramdejonge1862 5 ай бұрын
Unfortunately, I currently don't have more videos on simulation in Excel for CBM optimization.
@SoviaRahmaniaWarda 5 ай бұрын
@@bramdejonge1862 Okey Sir. This video very helpful, Thankyou
@mioumitsou 8 ай бұрын
thanks
@ujjwalroy8835 9 ай бұрын
Nice explanation
@soorajkp4089 10 ай бұрын
Is it ok to use MLE for small data sets ?
@bramdejonge1862 10 ай бұрын
That's ok, but then it is more difficult to decide whether the fitted distribution is appropriate.
@soorajkp4089 10 ай бұрын
@@bramdejonge1862thanks. How did you plot KME in the graph..
@bramdejonge1862 10 ай бұрын
@@soorajkp4089 For that you need to create an additional table with two columns (not shown in the video). In the first column you need to put t values with small increments (i.e. 0, 0.01, 0.02, etc). In the second column you need to show the corresponding Kaplan-Meier values.
@shashidharmuniswamy2620 Жыл бұрын
What does the likelihood of the complete dataset L (lambda, k) mean, please?
@arifurmollah4386 Жыл бұрын
I have a question for you, in colleges and universities, which courses talk about Weibull distribution? Which courses talk about that? Which courses? Another question is which colleges and universities talk about Weibull distribution? Which colleges and universities have that? Which colleges and universities?
@vijayprabhakaran453 Жыл бұрын
Thanks for the video but the phrase " length of the duration" is confusing, what you mean is time to failure ?
@bramdejonge1862 Жыл бұрын
The length of a duration is either the time to failure (event duration) or the time until preventive maintenance (censored duration).
@angelvictorjuancomuller809 Жыл бұрын
This is a great video, thanks!
@salmarachyk5647 Жыл бұрын
this is a great explanation thank you sir so much
@pmfelix 2 жыл бұрын
Hi. I was not sure if the Weibull distribution can contain zeros. Thanks.
@bramdejonge1862 2 жыл бұрын
If the time-to-failure follows a Weibull distribution it can never be exactly zero, it is always strictly positive.
@collinsnchabeleng1405 2 жыл бұрын
Hi Bram, what are examples of preventive maintenance
@bramdejonge1862 2 жыл бұрын
Preventive maintenance consists of all maintenance actions that are carried out before equipment has failed.
@deborahmatondo2977 2 жыл бұрын
Thank you so much for this video!
@deborahmatondo2977 2 жыл бұрын
I know the question has already been asked, but could you please share the excel sheet to get the estimates please? I don’t see how you can compute the two different distributions and the p estimate
@saradhamanikandan4661 2 жыл бұрын
This is a great video. this helps me a lot especially when we don't have software's to support. I have a question on how to calculate the confidence interval for R(t). can you please help me with this.
@pranotipawar 2 жыл бұрын
Hello, excellent explanation of Weibull and Reliability Analysis. I do have a question though - at 9:12, should it be Weibull and not Weibull.Dist as we are calculating the density?
@bramdejonge1862 2 жыл бұрын
The function WEIBULL in Excel is deprecated; the function WEIBULL.DIST can be used to evaluate both the density function and the cumulative distribution function of the Weibull distribution. For the density function the argument cumulative should be set to false, for the distribution function it should be set to true.
@pranotipawar 2 жыл бұрын
@@bramdejonge1862 Thank you!
@haknv647 2 жыл бұрын
thanks for the detailed description. Which column did you use at the graph?
@bramdejonge1862 2 жыл бұрын
The columns for the graph are hidden, I have used one column for t values (0.01, 0.02, etc), and then a column for the Kaplan Meier R (using VLOOKUP) and a column for the Weibull R.
@lluis-ramonsalescasals9800 2 жыл бұрын
Thanks for sharing. This video is gold!! Congratulations.
@MKzeeee 3 жыл бұрын
Great video, to get an insight of the parameter estimation. I have been wonderibg how to generate the R(t) curve in excel(weibull and Kaplan-Meier). Can you please guide me or share the excel sheet used in the video.. Thanks
@bramdejonge1862 3 жыл бұрын
I have used an additional table just for making the graph. This table consists of three columns: (i) a column with t values with small increments, (ii) a column with corresponding Kaplan-Meier R(t) values (use VLOOKUP), and (iii) a column with corresponding Weibull R(t) values.
@MKzeeee 3 жыл бұрын
@@bramdejonge1862 Thanks for the details.. will try if i can generate something like yours.
@balqistkn1192 Жыл бұрын
@@bramdejonge1862 would you like to demonstrate how to make this table and the kme mle weibull graph?
@kerguule 3 жыл бұрын
The best video I could find about this topic. Thank you very much!
@kerguule 3 жыл бұрын
One question though: how did you plot those graphs? With something that is not shown on the sheet? Would it be possible to get that excel file you made? Thanks!
@kerguule 3 жыл бұрын
Nevermind, I got the second graph when I watched your Kaplan video... Your weibull graph just looks a bit smoother than mine.
@gabrieltai9989 3 жыл бұрын
Could you post the excel sheet used for this video?
@HansdeCocq 3 жыл бұрын
Hoi Beam, zijn je excel-sheets, die je gebruikt hebt in je presentaties over dit onderwerp weiibull en Kaplam-Meier), ook beschikbaar ??? Je presentaties zijn verhelderend en je presenteert "to the point in begrijpelijke taal (ook voor leken :)"", compliment!
@alaaisraa9459 3 жыл бұрын
Thank you for this video, please I have a question, how do we estimate the failure function, if I have the number of data exactly 20
@bramdejonge1862 3 жыл бұрын
Do you mean the failure rate function? The failure rate function equals the density function divided by the reliability function. For the Weibull distribution you then only have the first part of the density function left.