I'm new to iPhone development and don't know what the best iPhone UI approach for my problem is. That's where I was hoping you all could provide some input and guidance.
Here's the system & how it's currently used:
Right now, I have an Excel spreadsheet of data with four columns - Make, Model, Size, Value. There are about 1,000 rows of data. How the system is used in Excel is to use Filtering on the columns. First, you select the Make from the filtered column (there are about 8 unique Makes), then select a Model (each Make has between 1 and 20 unique Models), then select the Size (each Model has about 20 unique Sizes), then use the associated Value.
If I were to create an HTML page and jQuery with AJAX, I'd have three SELECT elements and one DIV (or some kind of label). When a Make is selected, populate the Models SELECT. Likewise, when a Model is selected, populate the Size SELECT. Finally, when a Size is selected, display the associated Value in the DIV. (Note, that when a Make is selected, I'd need to clear out the Value DIV and the Size SELECT in addition to the population of the Model SELECT. - appropriate action for selecting Size as well)
Now, given that, what do you recommend as a UI pattern for the iPhone?
You could do exactly that you describe for the HTML version, using a UIPickerView in each place where you would use and HTML SELECT. (The UIPickerView uses the "spinning wheel" metaphor to select from a list of values).
You could also use a single multi-component UIPickerView, where the first wheel is Make, the second Model, and the third Size. That works best if the names are short enough that you can fit all three (Make/Model/Size) in a single row on the screen.
Related
I have a calculation and it outputs multiple values. Then I am creating a table on those values. For example, in below data my formula is
if data is 1 then calculation is `one`
if data is 2 then calculation is `two`
if data is 3 then calculation is `three`
as three doesn't really appear in the output, when I create a table, three is not displayed. Is there any way to display it?
I tried table layout >> show empty rows and columns and it didn't work
data calculation
1 one
2 two
Tableau discovers the possible values for a dimension field dynamically from the query results.
If ‘three’ does not appear in your data, then how do you expect Tableau to know to make a column header for that non existent, but potential, value? It can’t read your mind.
This situation does occur often though - perhaps you want row or column headers to remain stable, even when you change filters in a way that causes some to no longer appear in the query results.
There are a few ways you can force Tableau to pad ** or **complete a domain:
one solution is to pad your data to make sure each value for your dimension field appears in at least one data row.
You can often do this easily by using a union to append some extra rows to your original data. You can often add padding rows that don’t impact any results by leaving all your Measure columns null since nulls are ignored by aggregation functions
Another common solution that is a bit more effort is to make what is known as scaffolding data source that is not much more than a list of your dimension members. You can then use that data source as a primary data source with data blending, making your original data source secondary.
There are two situations where Tableau can detect the absence of data and leave space for it in the visualization automatically
for numeric types, you can create a bin field that will automatically pad for missing bins
similarly, date fields can show missing values because, like bins, Tableau can tell when a month doesn’t appear in the data and leave room for it in the view
I'm using Tableau Desktop 9.0 on OSX. I have data (loaded from a local CSV file) that looks like this:
code,org,items
0212000AA,142,10
0212000AA,143,15
0313000AA,142,90
0314000AA,143,85
I want a chart that shows the number of items beginning with 0212 as a percentage of all items, for each organisation. (I mean as a percentage of the organisation's items - for example, in the above, I would like to show 0.1 (10/(10+90)) for organisation 142.)
I have been able to get part way there, by adding org to Columns, and SUM(items) to Rows. Then by adding a Wildcard filter on code, for starts with 0212.
This shows me the number of items starting with 0212, by organisation.
But what I don't know how to do is show this divided by the value of all items for the organisation.
Is this possible in Tableau, or do I need to pre-calculate it before loading my data source?
One way is to define a calculated field called matches_code_prefix as:
left(code, 4) = "0212"
You can also define a parameter called, say, code_prefix to avoid hard coding the prefix string:
left(code, 4) = code_prefix
And then show the parameter control for code_prefix to allow the user to interact with it.
If you use this new field as a dimension to separate SUM(items) according to those that match the prefix and those that don't, you can then use a quick table calculation to get the percent of total.
For example, you can place org on the Rows shelf and matches_code_prefix on the Columns shelf, and SUM(items) on the Text shelf to make a table. Then under the analysis menu, turn on grand totals for both rows and columns to see the behavior. Next, right click on SUM(items) and choose Quick Table Calc->Percent of Total. Tableau will display the percents of total in the table.
If you want the percent of total defined differently than the default, then right click on the measure again and set Compute Using to a different value such as matches_code_prefix in your case. It's usually better to set compute using to a specific field.
If you only want to display the value for the matching case, select the column header you don't want to see and choose hide. You can also turn off the grand totals from the analysis menu when you are done.
When you are confident in the values in your table, you can turn it into a bar chart for example by moving matches_code_prefix to the detail shelf and the measure to the Columns shelf.
--
The above is the drag and drop approach. If you prefer to hard code everything in a single calculated field that is calculated on the database side, you could instead define a calculation such as:
zn(sum(if matches_code_prefix then items end)) / sum(items)
Then set the default number format for that field to display as a percentage
I'm designing a form layout in FileMaker, and I'm spending a ton of time just trying to get all the controls in the right spot. Is there some way of doing a table layout? I just want to say "this control is in this cell" and let the table take care of all the formatting. Instead of having to set the position on each object just right.
What I Have
A form with a bunch of fields, organized in a table manner, i.e., rows and columns.
Example:
What I Want
To not have to specify the exact position of each individual control. Every time one element moves or needs to resize, it ends up screwing up the entire row, column, or "table", and I end up needing to move every field individually accordingly.
Is there a better way to organize fields in a form like this so that I don't have to manipulate the position and width of every "cell" in a row or column individually?
I think this is made easier with the use of the Inspector in layout mode. In particular, the controls in the "Arrange & Align" section on the "Position" tab of the inspector.
For example, you can quickly select all fields on the same "row" and align them to the top and make them the same height and width as needed.
If you are using FM 13, you may also want to make use of styles to make it easier to set the same formatting quickly across similar objects.
If you're a web developer you might want to experiment using the WebViewer. You can use Javascript for creating a nice table. Then you can interact with that table through calling a script in FileMaker.
Or just stick to a portal like Michael.Hor recommended.
I am trying to do a list report with about 40 columns(Dims+measure) but not able to get it right,
the requirement pushes the Tableau limitation by exploiting its limit to only 16 columns.
How can I get this done?
I read this
Here is my Tableau workbook with 16+ columns but no column header
Go to Analysis-->Table Layout -->Advanced and change the number in Rows and Columns as per your need.
You can't add more than 16 to this, but increase it to 16 (for identification).
So, save the Tableau file with extension .TWB. Then open this file in notepad.
Then search for the text: attr='row-levels'.
You will find something like:
<format attr='row-levels' value='16' />
<format attr='row-horiz-levels' value='16' />
Change the value of 16 to desired column numbers. Save the notepad file. Open it in Tableau.
The measures names and measures values special fields can help here and covers most use cases. (Using the measure names and values fields is likely a better choice than creating 40+ marks cards as you did in your posted example)
Put Measure Names on the column and filter shelves and measure values on the text shelf. Then add the measure fields you want to the Measures Values shelf. Then put the dimensions that you wish on the rows shelf.
A single field+aggregation can only be on the Measure Values shelf once, but a field can repeat with different aggregations -- so you can show the min, avg and max of a measure in 3 different columns.
As you mentioned, you can increase the max col and row headers up to 16 each via the Analysis->Table Layout->Advanced menu and panel. Beyond that point, adjacent columns will still display, just be coalesced for display.
Still you can have an apparently arbitrary number of fields on the measures values shelf, so can display as many columns of measures (data) as you wish, even though adjacent header columns for dimension (~category) get coalesced for display once you hit the header limit.
Tableau is optimized for summarizing data for efficient interpretation by humans, so displaying extremely wide tables of data is not the best fit for the tool (or a human reader frankly). Importing and exporting large tables is certainly possible.
At the 2015 conference I went to a session called "Use Tableau Like a Sith" and they showed us how to change the XML to workaround the 16 limit. Caveat being this is not supported.
Find the entries in the attached image and change their value to 40. In the screenshot, the Sith presenters were changing them to 36.
Here is a workaround for some data sets:
convert your fields from Dimension to Measure, and then
display using Measure Names / Measure Values, as #Alex Blakemore suggested.
For example, Boolean fields can be converted to numeric using INT().
PROS:
It is easier to change which fields to plot using Measure Names / Measure Values.
Faster performance, at least for some data sets.
CONS:
Often data sets have some fields that cannot or should not be converted to measure.
Not as easy or straightforward as changing Analysis > Table Layout > Advanced settings, or the xml-editing workaround suggested by #Cyndi1976.
There are Two ways:
Edit the saved .twb file and edit the Below xml code by opening the workbook with Notepad
<format attr='row-levels' value='16' />
<format attr='row-horiz-levels' value='16' />
Create 3 different worksheets each consisting multiple column but each worksheet consisting columns >16 and place them in single dashboard. So you will get one view with 40 columns.
A good way to do this is to create groups and filters. I'm sure, out of 40+ columns, a good number of them can be converted to either of the above, giving a neater look to your dashboard, making it easy to comprehend your data.
Let us assume you're creating a dashboard to show the overall split of mobile recharges for a company x.
One of the option is to have multiple columns; each for:
the mobile OS
OS version
service provider
recharge rank
Sub-category (Prepaid / Postpaid)
...
the easier and elegant way to reduce the number of columns is to populate a dropdown list with these values. Not only this will make the dashboard easier to comprehend, it will reduce the number of columns one has to refer to interpret the data and would also reduce the technical limitations imposed on the number of columns.
to create a group in Tableau:
include the fields in the result set i.e. use the column[s] in select statement.
select os, os_version, service_provider, rank, subcategory ... from schema.recharge_table [where...];
In the Sheets view of Tableau, right click on the field to create group. Let's create a split on subcategory.
Group the sub-categories, give them proper alias to be recognised easily.
Drag the Group to filter and you've successfully and elegantly reduced one column.
16 is the maximum limit for row/column labels in tableau table.
Put 20 columns on one sheet and 20 one the other dashabord. Drag and drop both sheets on to your dashbaord, and you should be having 40 columsn.
I'm developing an iPad application, in which i have to store some data in the database. So that, i prefer to use SQLite, here i have an doubt regarding the table structure. Let me explain, actually there is a view in which, the user can add the labor Qty, labor type and so on, at default i have displayed only one set of fields.
I have created table with the five fields ( Labor Qty, Labor Type.....) and it works fine. Now i need to setup a button "Add New" at the bottom, i apologize for the low resolution image, when the user click on the button, will generate another five fields below the previous. So how can i get the text fields values into the database table since i have created only for five fields. I tried and googled it but can't find the correct way. Any Help Appreciated. Thanks.
Well in that case what you can do is following.
put your content in UIScrollView
Have the textboxes in UIWebView and upon click on add new create new instance of that.
Put the X,Y co-ordinate in increasing manner let's say first time it is at 10,50 second time 40,50 third time 70,50 and so on,,
also increase X,Y co-ordinates of the button itself.
This way you can achieve above.
Using above logic you can get something like following.