Display 0 when no data in dates in Tableau - tableau-api

A lot of people have problems with displaying null values in dates in graphs in Tableau. Tableau automatically joins values that actually exist for specific dates and neglects missing data. I've solved this problem converting my datetime date to a date itself (makedate). Then I right-clicked on the date axis and clicked Format. Clicked "Pane", Special Values -> Text: 0, Marks: Show at Default Value. Next I clicked on Date pane in Columns and made it discrete. This unblocked the possibility to Show Missing Values. I right-clicked on Date axis and chose this option. I clicked on Nulls on the Graph and chose to show them at default values. Finally, I converted Date pane back to Continuous.
Hope this helps someone.

You could try this formula using IFNULL function
IFNULL(MONTH([DATE]),0)
Another function you can use is ZN() instead of IFNULL() which does the same thing as above, except that the default value of zero is baked into the function.
I'm not sure that a formula that returns zero for a date makes sense in most applications though. Sometimes it is better to leave the nulls and then decide how to visualize them. Otherwise, you are masking missing information and replacing it with possibly misleading information.
More info here

Related

Counting days between 2 dates and swapping one of the dates for another if cell if not empty - google sheets

As the title suggests I'm wondering if there is a way to count days from 1 Column from the current day, then when filling in another column it stops counting the difference in days?
I'm using the following formula (found online)
={"Days";ArrayFormula(if(A3:A="",,int(B3:I)-left(A3:A,10)))}
Column A being where my date of entry is, column B is a hidden column with every row set to the
=Today()
I have another column, Column C that I will enter the date manually after date of completion, at which point I would like it to then stop counting the days and show me the number of days between Column A and C (Date 1 and Date 2)
I'm not overly experienced in google sheets but I'm thinking maybe there's a way to
check if column C is empty, if so carry on with todays date, if it's not empty to
calculate Column C - Column A?
Would making an new column for checking if the completion date has been entered work?
ISBLANK(C:C)
If so would it be possible to get one formula to check whether True or False and determine what 2 dates to work with? Lets say Column D is for ISBLANK the following is what I think of
={"Days";ArrayFormula(if(CD:D="False",,int(C3:C)-left(A3:A,10)))}
={"Days";ArrayFormula(if(D3:D="True",,int(B3:B)-left(A3:A,10)))}
When I try this I have no luck and get a "Result was not expanded automatically, please insert more rows (1)" error message
Any help would be appreciated!
Apply the formula :
=if(B2="",today(),B2)-A2
at C2. And drag downwards. That's should do.
Please share if it work/understandable/not.
Sorry it's a bit hard to understand this question, if you could post a current and desired screenshot example that would help I think.
So, I think your best bet here is to review this video if you're wanting sheets to auto-input a time entry when a cell is modified:
https://www.youtube.com/watch?v=548dD3iXetg
And it will show you how to script a cell to enter in a time entry when another cell is edited, and then you could use a variation of formulas to calculate the difference between the days of the original minus the date from the script (such as the once referenced below or by #p.phidot )
So for an example, once you script the time entry to work in the background of the sheet, you have a formula using an IF statement to make it pull between your today date or the new date being entered.
My cell references below are an example as I can't follow the question sheet.
=if(b2="",A2-B2,A2-C2)
This way if b2 is not blank it'll do a2-c2. You could also use ISBLANK if you like.

In Tableau, is there a way to only show the first and last date in the table output using the date filter

Tableau will generally show every single date within table output of the date ranges filtered for. Is there a way to only show the first and last date in the table for the date of ranges selected?
I created an image of the desired output in excel. Link below:
Desired output example
Thank you in advance!
The feature that will address your goal is called a Level of Detail (LOD) calculation. They have many uses and take various forms. I suggest reading about the in the online help.
But, to answer your question, the LOD calc to find the first (i.e. minimum) value in a date field called, say, Transaction Date, is;
{ MIN([Transaction Date]) }
The formula for the latest value is left as an exercise for the reader 😊

Tableau - Excluding Null Values From Multiple Time Series

So I have two time series on one time axis. However, the second time series (Exiters) has null data for the last time period (2018 Q3). Tableau is currently dealing with this null data point by extending the series line to to the bottom which ultimately makes it appear to any user that the data has dipped to "0". Extending the line to "0" is misleading in my opinion.
That being said, is there any way to exclude this null data point only without affecting the data in the other time series (Participants)? Basically, I just want to exclude this specific null data point, have the Exiter time series end at 2018 Q2 and maintain the Participant time series ending at 2018 Q3. This surely is possible right?see image here
In my attempts to reproduce this, I kept finding that the default behavior was to act as you are desiring; to have Exiter end at Q2 while Participant displays into Q3.
I was able to reproduce the "0" effect, though, once I clicked on the following button "Show data at default position" after clicking on the "2 Nulls" button at the bottom right of the viz:
I wonder if perhaps at some point that button was clicked in the creation of this workbook. More information on default positions here.
The way to revert this behavior, which may end up giving you the view you are looking for is:
Analysis > Special Values > Hide

Have Max value of range of dates filter be todays date

I have a "Range of Dates" filter and what I want is for the max (or right most value) to always be the most recent date which should be today's date. What seems to be happening is that if I leave the dashboard open and come back the next day the max value is yesterday's date and I must manually move the slider over to be today's date. How can I accomplish this?
I find a calculated field is the best way to do this as I have run into the same issues using the out of the box max date filter.
Create a calculated field as follows:
[date] = {FIXED: max([date])}
This creates a True False field where only the records that have the max data and carried through.
Now drag this onto the filter pane and select 'TRUE'.
I've generally seen two basic approaches for this problem: Calculated fields and relative dates.
Use a calculated field or parameter or some combination of calculated fields and parameters with filters. This is similar to what smb suggests in their answer to this question. It also seems to be the most popular approach.
If you don't particularly care about being able to set the end-date with the slider, you could try using relative dates, using the approaches detailed in the accepted answer to this Tableau forum question and in this Tableau Knowledge Base article. Jennifer Vonhagel also gives a second answer to the Tableau forum question farther down that uses a parameter plus calculated field approach.
Additionally, this Tableau Knowledge Base article offers another option (Option 1, in the article) if you have Tableau 10.3+: You can use the "Latest Date Preset" (see here for details) check box in the date filter dialog box. I haven't used this, but it looks promising if you're using Tableau Desktop (seems like it wouldn't work for Tableau Web). The article's Options 2-4 are just riffs on calculated fields, in my opinion.
Two more approaches I've heard of – but never personally seen in the wild:
Push the max date down into the view you put Tableau on top of and let the view do the work.
Use a script to modify the Tableau workbook's XML.

Excel - Insert "day" on a cell and format it to date with current month and year

I am working on a home accounting template (and could not find any good one :-/), so I am creating one for each month. Both in my expenses and my incomes, I would like to have a date column where I just have to insert the "day" (e.g.: 22) and it automatically fills the rest with the current month and year (or I could set them in another cell).
For example: 22 + ENTER would return: 22/12/2014
If I do this, I automatically get a default date: 22/01/1900
I do not know if it is possible to change this defaul date depending on the current one or any other value.
I have tried with a different strategy: if the amount column is not empty, fill in with today's date: =IF(A3="";"";TODAY())
The problem is that I do not always register today's expenses, so I need to change it manually. I was just wondering if this is possible and there is a better way (maybe a macro?).
You need Excel to modify the cell contents after you press ENTER. The only option seems to be a Macro using the Worksheet_Change event.
Please check out this other question. I think that will help.
This can be achieved with simple formatting and use of controls that are available in Excel. VBA will give you drastically more flexibility, however the request above can be accomplished without learning VBA.
I have included a sample file here.
Steps to recreate:
Create a range of months. I created a range including the current month through 12/2014
Insert a combo box from the developer tab. Right click and select Format Control. On the Control tab, input the range you just created and then select a "linked cell". This will insert an integer to indicate which item you picked in the list, starting at 1.
Use the attached formula to add the DAY that you enter in the first column and VLOOKUP the month and year from the value chosen in the combo box.
Enhancements: I used conditional formatting to change the text color of the days you enter to WHITE. This way you won't see them. I also included some checking in the VLOOKUP formula: the day you enter must be a number and must be non-blank for a date to populate.