tableau

问题 I have a column of data I'm reading in Tableau directly from Redshift. This column contains a JSON object. It looks like this: {"Age": 58, "City": "Wisconsin Rapids", "Race": "Other", "State": "Wisconsin", "Gender": "Female", "Country": "United States"} I wish to extract this data by generating a column with a calculated field for each data point of interest using Tableau's REGEXP_EXTRACT function. I.e. an Age column, a City column etc. How do I write a line of regular expressions to get the

问题 I have a field of strings and want to take all the "Elements from position x until the end. For example there is a "Field Name" column with the following values: /one/two /three/three/four /five/six As result I would like to have: two three/four six I tried with SPLIT([Field Name], '/', 2) but then the " four " is missing. Is there a way to talk from token 2 until the end of tokens? 回答1: This should work: RIGHT([Field Name],LEN([Field Name]) - FINDNTH([Field Name],"/",2)) This is returning

问题 There is a live worksheet called Person with columns - Names & Birthdays. Need to create a quick filter with a default value pointing to the latest birthday. For example: If there are 3 Records as follows, Names Birthdays A 8/9/1993 S 6/5/1994 Z 8/15/2000 The filter should hold the default value 8/15/2000 in it with other values unchecked in the drop down list. 回答1: I believe I see what you are asking. When you add your filter click the little drop down arrow in the filter --> edit filter--

问题 There is a live worksheet called Person with columns - Names & Birthdays. Need to create a quick filter with a default value pointing to the latest birthday. For example: If there are 3 Records as follows, Names Birthdays A 8/9/1993 S 6/5/1994 Z 8/15/2000 The filter should hold the default value 8/15/2000 in it with other values unchecked in the drop down list. 回答1: I believe I see what you are asking. When you add your filter click the little drop down arrow in the filter --> edit filter--

问题 I have a field such that Color Pink Blue Pink Blue Pink Pink Pink Pink Pink Blue Blue Pink Pink Pink Blue Pink Blue Pink Blue How to create calculated field to count number of times Pink appears? Total numbers of Blue? 回答1: If you're grouping by Color and only Color in the view, then you can simply use SUM(Number of Records) . For example, put Color in the Rows shelf and SUM(Number of Records) into Text, and you'll get a table with the counts for each Color. If you need to specify the level

问题 Using Tableau, I have arranged some data in a 100.00% stacked bar: I want to sort the data descending (largest to smallest) by Valid component type (green) - is this possbile? UPDATE (26th July 2017) merawalaid's answer ALMOST worked; I followed the steps, adjusted the code to match my specific project, and it resulted in this: As you can see, it is somewhat sorted, but not quite as it should be (for example, the fourth and sixth rows are featured too high in the chart. Is there something

问题 I am streaming tweets from a Twitter app to Spark for analysis. I want to output the resulting Spark SQL table to Tableau for real-time analysis locally. I have already tried connecting to Databricks to run the program but I haven't been able to connect the Twitter app to Databricks notebook. My code for writing the steam looks like this: activityQuery = output.writeStream.trigger(processingTime='1 seconds').queryName("Places")\ .format("memory")\ .start() 来源： https://stackoverflow.com

问题 For the sake of the exercise, let's assume that I'm monitoring the percentage of domestic or foreign auto sales across the US. Assume my dataset looks like: StateOfSale | Origin | Sales 'CA' | 'Foreign' | 1200 'CA' | 'Domestic' | 800 'TX' | 'Foreign' | 800 'TX' | 'Domestic' | 800 How would I show the percentage of Foreign Sales, by State of Sale, but each State is a line/mark/bar in the visual? So for CA, the Foreign Percentage is 60%. For TX, the Foreign Percentage is 50%. 回答1: This is what

问题 I am creating a report in Tableau and wanted to show the latest date in dashboard whenever I refresh the data. My data also contains last one month's data points. And on daily basis, we are refreshing the data. 回答1: If you just want to show the latest date in your dashboard you can just have a sheet with max(date_field) and drag that sheet onto your dashboard. If you want that date to change dynamically with the users choice of periods that you just need to look at "Apply to worksheets" on