Allow users to download a csv with the data selected

[javiag]

The csv will have the metrics for all the wikis selected and for each wiki it will be include an absolute and a relative timestamp.

In this way, users can analyze the data further in case they want, for example, apply some time series analysis methods.

[Akronix]

The csv output should be grouped by wikis and empty or white spaces should be placed when certain wiki has no data for that month.
The csv will have, therefore, the following format:
W1M1, W1M2, W1M3, W2M1, W2M2, W2M3, W3M1, W3M2, W3M3,

[Akronix]

A question here comes up: what should be downloaded either the data for the initial selection on the side bar or the actual wikis and metrics selected in the main screen dropdown selectors (which are the graphs actually being shown)?

[javiag]

The original selection.

Because in each plot you can also hide wikis... so that will be confusing.

[javiag]

Regarding the format, is a minor issue the separator between both should make the wiki and metric names clearly distinguishable.
W1<>M1, W1<>M2

And perhaps, we should consider making a csv per wiki with all the metrics and zip them. I am thinking in the easiest way to put all together in python/R.

Anyway is really petty stuff.

[Akronix]

Reopening this because of changes to what @javiag said:

• create a csv per wiki and pack them in a zip file.