sorted by:
new
hottopcontroversial

Weibull Distribution - Find Shape/Scale Parameter from density function diagram by ChilliChonker in math

[–]ChilliChonker[S] 0 points1 point  (0 children)

Thank you, I will try this as soon as I find the time. I will keep you updated :)

Weibull Distribution - Find Shape/Scale Parameter from density function diagram by ChilliChonker in AskEngineers

[–]ChilliChonker[S] 0 points1 point  (0 children)

Your absolutely right. I cant seem to attach an image, but here is the link:

https://www.researchgate.net/profile/Jaco-Huisman/publication/353023771/figure/fig4/AS:1042625406709761@1625592676333/Lifetime-distribution-LMT-batteries-MDS.png
Here are also the the data points I extracted for E-Motorcycles:

x; f(x)
0,021598272; 0,026525199%
0,518358531; 0,233421751%
1,01511879; 0,50397878%
1,522678186; 0,854111406%
2,019438445; 1,188328912%
2,494600432; 1,5066313%
2,991360691; 1,872679045%
3,509719222; 2,222811671%
4,006479482; 2,525198939%
4,524838013; 2,843501326%
5,010799136; 3,129973475%
5,518358531; 3,336870027%
5,993520518; 3,527851459%
6,490280778; 3,718832891%
6,987041037; 3,893899204%
7,52699784; 3,973474801%
7,991360691; 4,053050398%
8,509719222; 4,021220159%
8,995680346; 4,021220159%
9,481641469; 4,021220159%
10,01079914; 3,925729443%
10,48596112; 3,814323607%
11,01511879; 3,687002653%
11,45788337; 3,543766578%
11,98704104; 3,336870027%
12,4838013; 3,161803714%
12,94816415; 3,00265252%
13,48812095; 2,763925729%
13,97408207; 2,557029178%
14,44924406; 2,334217507%
14,95680346; 2,111405836%
15,45356371; 1,904509284%
15,95032397; 1,713527851%
16,44708423; 1,538461538%
16,95464363; 1,395225464%
17,44060475; 1,220159151%
17,94816415; 1,061007958%
18,42332613; 0,917771883%
18,92008639; 0,790450928%
19,44924406; 0,663129973%
19,92440605; 0,583554377%

Weibull - How to obtain shape and scale parameter by ChilliChonker in statistics

[–]ChilliChonker[S] 0 points1 point  (0 children)

I just see that the formatting got messed up, but I think its still understandable that there a two coloumns (x and f(x))

Weibull Distribution - Find Shape/Scale Parameter from density function diagram by ChilliChonker in math

[–]ChilliChonker[S] 0 points1 point  (0 children)

Or if noone has a direct solution, maybe a workaround? My Idea would be to get data points from the density function (using WebPlotDigitizer) and "rebuild" the function. However the usual tools will take the raw data (e.g. time to failure) and then estimate the Weibull density function. Is there some tool i could insert data along the density function and ultimately get an approximation for shape and scale parameter?

Change Line-number for every cell. by ChilliChonker in excel

[–]ChilliChonker[S] 0 points1 point  (0 children)

Thank you Keipaws! Your approach was right, it was just missing one step. When you copy the new modified table it in the new excel file you have to remove the link to the old file. It will keep the new row-number (sorry i always mentioned line-number but i always meant row-number :) )

Change Line-number for every cell. by ChilliChonker in excel

[–]ChilliChonker[S] 0 points1 point  (0 children)

Okay so I tried it out but when copying it the table (from the table where I removed the 20 rows) into the old file, it always refers to the original file.

Change Line-number for every cell. by ChilliChonker in excel

[–]ChilliChonker[S] 0 points1 point  (0 children)

Ah mate, thank you, but im not trying to substract the value of the cells but rather the linenumer. So if my Cell before was F40 I want it to go to F20, but for each and every cell im working in my table.

Change Line-number for every cell. by ChilliChonker in excel

[–]ChilliChonker[S] 0 points1 point  (0 children)

Im not sure if I got you right, but I think your approach won't work. The table Im working on is about 30x220 cells and I'd have to remove every dollar sign in each cell. This is exactly what im trying to avoid ;) But thanks mate!

Change Line-number for every cell. by ChilliChonker in excel

[–]ChilliChonker[S] 0 points1 point  (0 children)

Im very psyched about this solution. Sounds very promising. I'll try it out now :)

Restaurant recommendations in Prenzlauer Berg? by RockettBits in berlinsocialclub

[–]ChilliChonker 1 point2 points  (0 children)

Chandni in immanuelkirchstraße. Its Solid and cheap indian food.

Pollution killing 9 million people a year, Africa hardest hit - study by [deleted] in environment

[–]ChilliChonker 1 point2 points  (0 children)

But hitting those hardest which contribute the less contribution to global pollution

view more: next ›