How scroll two data frames simultaneously in R shiny dashboard - r

I am currently working in data cleaning and visualization.
I though a useful feature would be to scroll two almost identical tables at the same time.
(The only change would be a column of the date time for example. )
So when you scroll the table in one side you can see the changes for the same row in the other side.
I was looking in google, and I imagine maybe I have to use javascript. Anyway I am not working with rhandsometable
Does anybody knows how to perform this action?
Thank you very much!

Related

Obtain values from Shiny context from cmd

I am looking to get the values from a reactive function, based on a specific set of inputs, but without the dashboard open or visible. Is this possible?
I have two possible solutions, both of them I am not sure are possible, and which of the two would be better. Also, I do think there could be a better solution.
Start the dashboard at a specific time and write away a csv with the required information. I don't know how to put the input values to the right settings though (they would be different from the normal initial settings). Hopefully start this without a visible endpoint (headless chromedriver for example).
Within Shiny, do a check if it's a specific time. If that's the case, change all inputs to the right settings, and export/do something with the required values. I don't prefer this, as there will be users using the dashboard at that time, and I don't want to disturb their work.
To give a bit more context, I would like to obtain values/dataframes from several dashboards at a specific time. These values are calculated via a chain of multiple reactives and inputs. I cannot trust that these dashboards are already running, so I need to start them.

Conditional place data into a prebuilt report

It's quite an interesting challenge, and I can't say that I entirely know how/the best way to go about it.
Basically I have a data set, I have attached a few picture to try and show you what I am working with. The data was randomly generated but it similar to what I am working with.
I am wanting to take the data, then input the date and value into the report based on the category, and date. The even more challenging part of it is that I need to have to report be filled out for each unique id. So it will have to create many different reports, and then fill it out.
Any idea/questions? I have no idea how to go about it.
I am experienced in R, excel, some python and SQL (but very little).
If you have the dataset in R, you could write a function that takes the parameters needed, performs the aggregation, and writes the result to excel.
It is not clear to me what exactly the data aggregation part is. Without reproducible data it is hard to go into more detail.

How to auto restrict the view in rpivottable to be data protection compliant

I am starting a customer lifetime project at work and want to share how the data looks with the business, as I want to be able to identify the important variables with them. I plan to do this using the excellent rpivottable package and launch a shiny app to see where there are basic differences in groups to select my features.
This would mean I have my customer base of 4million customers and slice and dice them in a number of ways.
However, following GDPR we need to ensure no group is shown that has less than 7 customers in it. Therefore I need somekind of background calculation to ensure that less than 7 customers are never shown.
If I think logically about this, the only way I could see it working would be to make a change to the pivottable, have some form of submit button, so that the size of groups could be calculated, and then a filter (which needs to be hidden from the user so it cannot be switched off) is applied.
I know I should provide code, but I do not know where to start here. Has anyone had similar issues and has a potential solution to all or part of the problem?
Has anyone built a hidden filter into their rpivottable?
Has anyone been able to restrict their output to only show 90% of their data?
Thanks,
J
To be absolutely sure, you would need to load in a data frame that looks like "dim, dim, dim, count" where count is always greater than 7. Basically just a bit of preprocessing on your input data. Unfortunately, this means that you will be restricted to a small number of coarse dimensions, else you will end up filtering out everything.

Flex : A better way to represnt data from a table having large number of columns

I have to give a functionality on one of my pages is like:
I have data which represents data of a row from a table, and table has many columns.
This data has to be edited, and sent back to the server.
I am showing data in a datagrid, which obviously doesnt look good as we always have one row and that too a large row, so user has to use scroll to look for some values.
I want suggestions for this, like what should i use to make it look better and more user friendly.
I could have hard coded things but considering, if tomorrow table schema or xml respnse change it will break.
Any suggestions will be nice.
If I have clearly understood your problem, you have too much information in a row and you would like too be able to see all of your row data in the meantime.
How about creating dynamically, on a row double click by example, a form popup that would display vertically your columns data ?

Dojo datagrid and treegrid help - datagrid has a reformating flash?

I'm having a bit of a time trying to get Dojo grids (1.5) to play nice. Specifically I've spent about two weeks of work trying to implement a grid that allows for our result set data to collapse into rows, where rows can be expanded. Data comes in as a full set in JSON format, using ItemFileReadStore as the store. Any subsequent sorts or pagings are handled by GETing a new json from the application, and passing in new query parameters in the url.
The nested data was only two layers deep - a top layer to always be displayed and an array of child data with identical structure as the top layer. Each node has a unique ID and a cluster ID - on a parent node the unique ID and cluster ID will match.
I was initially very excited with TreeGrid - but I couldn't see how I could format it to do what I needed - namely eliminate the 'summary row' and one extra row full of null cells (???) that I just couldnt figure out how to remove unless I focused the query to only one cluster. I studied the test examples, built many test pages myself, tried to understand the forestModel, which for what I could tell was unnecessary... I found so little documentation, and sources I found online hinted that TreeGrid might not be reliable...
So I decided I would try to implement the expandable/collapsible rows in dataGrid.
I flattened the JSON data and added another attribute to indicate being a top level node ('alwaysShow' = true). I built my grid programaticaly and applied grid.filter() to pull only those top level nodes. I modified that filter by extending the ItemFileReadStore _FetchItems "filter" method to allow for OR querying instead of AND, and also modified it to allow for keys to point to arrays - when a top level node (small +/- icon in the cell) is clicked, the cluster ID of the parent node is added to the grid.filter.allowed[] and the filter is updated, allowing nodes with that cluster_id value to be displayed.
This worked fine on my small test set of five records (although id say a little slugish...) - but now I am pulling ~900 rows back from the application, and on expanding large clusters (~80 rows) I am seeing a very long flash of blue and white on the filter updates. I've spent most of my day trying to step through in firebug to find where its happening, but the dojo logic is so spread out. Seems to be happening before the call to _Grid.js defaultUpdate.
Its so bad that I am considering trying again with TreeGrid. Im also considering just doing this by hand... Im kicking myself for spending so much time trying to get Dojo to work to begin with. I would also consider a commercial "JSON->table with collapsible row" library if anyone has any recommendations...
Any suggestions or insights? Familiarity with the flashing problem or how I could adapt TreeGrid to my needs? I'm aware this is a bit of a rant... Many thanks for any help.
-robbie
EDIT: I eventually gave up trying to get Dojo to do what I needed and coded it myself in less than a day. Not the best use of three weeks...
EDIT:
I just found a solution that works for me, I have added the following CSS:
.dojoxGridSummaryRow {
visibility: collapse
}
Basically the summaries are probably still created but they are not visible nor taken into account in the table layout. That's good for me. Hope this will solve your issue.
This won't help but just to let you know that:
"- but I couldn't see how I could format it to do what I needed - namely eliminate the 'summary row' "
is the very EXACT same thing I'm trying to achieve and did not find the solution even though this looks like a very simple feature... Will let you know if I found a solution...

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