A transpose on a datatable (or dataview) requires that you generate a new
datatable (not a dataview) and then set up a double nested loop to iterate
through your old data and add it to the new datatable. It would look
basically like this (in pseudo code):
var oldData = some datatable or dataview.
var newData = new google.visualization.DataTable()
for each column of oldData
for each row of oldData
var value = oldData.getValue(row, column)
newData.setValue(column, row, value)
Notice that the row and column indices are swapped from the old data to the
new data.
This is probably not correct, and not optimal. It would probably be better
to set up a JavaScript array of arrays, and then construct the newData
using arrayToDatatable() instead of adding each value one at a time. Hope
that helps.
On Tue, Nov 17, 2015 at 3:43 PM, Th Mrckx <[email protected]> wrote:
> Hello Daniel,
>
> thank you for the quick reply and excuse my belated response.
>
> I was wondering how to write such a loop on a dataview. I already found
> out it doesn't exactly work as an array (I have some basic javascript
> knowledge).
> If any good information exists on how to understand and manipulate the
> dataview, I would greatly appreciate you pointing me in the correct
> direction.
>
> Kind regards and once again thanks in advance
> Th
>
> Op woensdag 4 november 2015 14:39:54 UTC+1 schreef Daniel LaLiberte:
>>
>> Sorry Th, DataViews cannot do the transpose operation on the data. You'd
>> have to write a loop to do that yourself, or perhaps use a Query with the
>> pivot clause:
>> https://developers.google.com/chart/interactive/docs/querylanguage#pivot
>>
>> On Fri, Oct 30, 2015 at 4:51 PM, Th Mrckx <[email protected]> wrote:
>>
>>> Hi Google Vis community,
>>>
>>> I am trying to make a visual representation (using charts) of some data
>>> I have in a google spreadsheet
>>> <https://docs.google.com/spreadsheets/d/1GmFaGCgcHWGWfT8rCWvD4QJ1Ed-Hn7LIMJ5SXFTmdc8/pubhtml>
>>> .
>>> This data will be embedded on a website using html.
>>> I get to the point where I can see the data from the spreadsheet. So
>>> far, so good.
>>>
>>> Trouble begins when I try to adjust my dataTable to a dataView and alter
>>> that dataview to fit the charts specific needs.
>>> What I'm basically looking for is a way to transpose and then filter
>>> data so only certain columns (or rows) remain.
>>>
>>> To try and be as specific as possible I added a small portion of my data
>>> in this google spreadsheet
>>> <https://docs.google.com/spreadsheets/d/1GmFaGCgcHWGWfT8rCWvD4QJ1Ed-Hn7LIMJ5SXFTmdc8/pubhtml>
>>> on the sheet named 'original'.
>>> What I want to achieve by transposing is found on the sheet named
>>> 'transposed' and finally you can see the data that has to remain as well as
>>> the chart I'm trying to create.
>>>
>>> I hope I'm clear on my problem. If anything remains unclear, please let
>>> me know.
>>>
>>> Thanks for any assistance!
>>>
>>>
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>>
>>
>>
>> --
>> Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2>
>> - 978-394-1058
>> [email protected] 5CC, Cambridge MA
>> [email protected] 9 Juniper Ridge Road, Acton MA
>>
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--
Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2> -
978-394-1058
[email protected] <[email protected]> 5CC, Cambridge MA
[email protected] <[email protected]> 9 Juniper Ridge
Road, Acton MA
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