How to realize a real waterfall chart - tableau-api

I know there are a lot of topic which talk about this topic. However, I don't find what I look for. Theres no exact waterfall chart in tableau ?
I ty to achieve a result like this one :
First example
Second example
Third one
Let me know it's possible

Tried to replicate how the chart should look like but if you need accurate chart then provide dummy data.

Related

Can I plot the same subset of many days in grafana

I have an interesting event that happens once a day at (say) 10:00. I would like to plot some data for a small time around then for multiple days to explore the data. Is there an easy way to do this with Grafana?
Rough sketch of what I’d like (but I’m not very picky):
A few things I tried:
Searching on the internet. I think this failed because I don’t know the right words to describe what I want
Assuming this is impossible. The reason I would expect this to be possible is that it seems somewhat common to e.g. want to plot the value of some metric during working hours only. But it also seems like something that mightn’t be needed for a reasonably steady 24/7 operation.
Setting up a dashboard with many panels with appropriate timeshifts. This is a bit fiddly to set up and I think it is hard to change the metric being looked at. It also leaves a lot of empty space and I’m not sure if it is possible to lock the y axis scale to be the same for all the panels
I assume that this isn’t currently supported and therefore I suppose the question is what the best workarounds would be. In particular I’m hoping to optimize for something that is convenient to explore the data rather than somethings that is powerful.
Some alternatives that would likely also be good for me:
Some scheme for weighting the x axis (so I could give time in the gap a weight of 0)
Some way to automatically add discontinuities to the x axis when there is no data
A few more specifics:
Grafana v8.1.8 (52edcff798)
The data is stored in VictoriaMetrics, and queried via a PromQL interface (PromQL is a subset of VictoriaMetrics’ MetricsQL. Currently I can’t make MetricsQL queries but can maybe change to do that if it would help here).

Spotfire Combination Chart - how can I filter the same chart twice?

My combination chart has two y-axes, one for price and one for value. This data is being pulled from the same table.
Is it possible to filter each of the two axes differently? Whenever I filter the table as a whole, it obviously affects both axes. Is there a way around this?
I don't think you can do that, the underlying data set for any visualization is the same no matter the split or the way you choose to display it (in your case, two axes).
If you need the two to react differently to filtering, I suggest you make two visualizations and apply 2 different filtering schemes to them (you will need that, as they are both coming from the same data table).
If this does not meet the requirements, please specify the rationale behind it, we might be able to come up with better idea.

Powershell: Get data from line chart to excel

I know we can generate chart from excel/csv data using ms chart library. But my question is little bit different. I am just asking for possibilities.
Is there any way to get the data from excel chart?
For those who wants to know what i did. I search it on google but no related result found. I don't know where to start. So, no code written at the moment. I know how to read excel file in powershell.
Any suggestion.
Thanks for your time.
What you are looking for is data or rather data elements.
What is a chart? If we think about a chart: It has an X and Y axis:
It has for the sake of argument and X-axis and we can call that date or data points.
It has a Y-axis for say quantity. Your manager may ask, show me how many logins are done per day for the last 30 days?
You would map out by day or by week how many logins were done and to show this in a "pretty" way: you can do this with a chart.
So, back to your question:
You need to know - What scale are you dealing with? Days, weeks, months, number of readings, etc.
You need to know - What quantity was taken at that time: Days. weeks, months, number of readings, etc.
Once you have both of these, you can then build a chart. Otherwise, using your Google example: It is just a picture and would be meaningless if there is not thing to tie it for a data relationship.
Hope this helps?

Table Structure for Tableau

I have a query regarding the table structure for the pie chart on Tableau.
I have below 2 table structures and am not sure which one is more apt for tableau to arrive at a pie chart .
For example I wish to see the percentage of each metric over a particular date contributing towards the total. May be the representation is a pie chart or some other chart. Please suggest me which table lay out works out well for my requirement.
Note : I have done all my calculations to arrive at the total in my database table itself.
Could some one please help me out.Thanks!
Table 1 :
Table2 :
Pie charts first take a series of data and sum the total. Then they calculate the percent of each element of the series and create a pie slice with a unique color. To make a pie chart, you need one measure (the category or label) and one dimension (the amount of that category).
If you need to see how one is made, I would suggest downloading an example workbook and then going to the pie chart sheet. One example is here.
Here is how it looks when set up in Tableau.
Personal note: Despite the name, pie charts are not that delicious. Here is advice from Tableau themselves. And here is something I made up to express my feelings.
Relating to the topic of pie charts, and how to best represent data where contributions to a whole are of interest, I would recommend bullet graphs as well. Here are two papers by Stephen Few that could be of interest:
Save the Pies for Dessert
http://www.perceptualedge.com/articles/08-21-07.pdf
Bullet Graph Design Specification
http://www.perceptualedge.com/articles/misc/Bullet_Graph_Design_Spec.pdf
And, to answer your question on data preparation for Tableau, it looks like the second table would be more appropriate. Here's a good KB for preparing data for analysis, note the last section on the Tableau Reshaper tool for Excel...can save a ton of time.
Preparing Excel Files for Analysis
http://kb.tableausoftware.com/articles/knowledgebase/preparing-excel-files-analysis

Visualize data with heatmap like a cell

I'm looking for an algorithm or method, that can visualize/create nice diagram from data. The data has size and quality properties (and there are some categorys). I found out that treemaps/heatmaps are good for that. But I need an extreme solution. Something like a cell.
I have a good example:
https://www.destatis.de/Voronoi/PriceKaleidoscope.svg
Is it possible to generate diagrams like that (with changing data)? Is there an algorithm for that? Where should I look for more information? Is there a program that does something similar to that?
What you want is called a vornonoi treemap. Check out the links on this other stackoverflow post and this paper from SoftVis 2005.
You can make that kind of map via d3.js http://d3js.org/ ,and there is a treemap example http://mbostock.github.com/d3/talk/20111018/treemap.html .