9  How to upload your GUTS data to Yoda

9.1 Local Yoda web portals and support

For each data collection location in GUTS there is a local Yoda portal that will be used to upload, store and archive your data. The table below shows which Yoda URL connects to which data collection location within the GUTS consortium and where to find your local Yoda support page.

Data location

	Local Yoda url	Local Yoda support page
WP1 Amsterdam-VU	https://portal.yoda.vu.nl	https://yoda.vu.nl/site/
WP1 Rotterdam-EUR	https://erasmus-yoda.irods.surfsara.nl/	https://www.eur.nl/onderzoek/research-services/research-data-management/tooling/surf-yoda
WP2 Leiden-UL	https://leiden-yoda.irods.surfsara.nl/	https://servicedesk.surf.nl/wiki/display/WIKI/Yoda+user+guide
WP3 Amsterdam-AUMC	https://aumc-yoda.irods.surfsara.nl/	https://servicedesk.surf.nl/wiki/display/WIKI/Yoda+user+guide
WP4 Utrecht-UU	https://uu-yoda.irods.surfsara.nl/	https://www.uu.nl/en/research/yoda/what-is-yoda

You can visit this page for general Yoda guidance provided by SURF.

9.2 Requesting Yoda workspace and uploading to Yoda

In the three steps below, we explain how you can request a personal workspace for Yoda, sign into that workspace and upload your data.

1. Requesting Yoda workspace

Requesting a Yoda workspace differs per location and is handled by each university differently. The most important thing is that the workspaces that will be created, for all data collected in a specific location, follow the same naming convention. In total four workspaces will be needed per location (two for the pilot and two for the main study), which are divided in the following ways:

• A distinction will be made between pilot data and main study data

• Within these two categories, a distinction will be made between raw data and “up to guts standard” data

  • Raw data is all the data you deposit immediately/as soon as possible after collection, unaltered.

  • The “up to guts standard” data includes data that is converted to the standard required to conduct research. More information on converting your data to GUTS standards can be found in the following chapter.

All workspaces within Yoda will start with the prefix research-. In the table below you will find the final names of the workspaces for each location. They follow these naming conventions:

• Workspaces for the pilot will follow the convention: guts-pilot-[location] and then an added -raw for the raw data workspace

• Workspaces for the main study will follow the convention: guts-[location] and then an added -raw for the raw data workspace

  Data Location	Pilot workspace name	Main study workspace name
  WP1 Amsterdam-VU	research-guts-pilot-vu-raw research-guts-pilot-vu	research-guts-vu-raw research-guts-vu
  WP1 Rotterdam-EUR	research-guts-pilot-eur-raw research-guts-pilot-eur	research-guts-eur-raw research-guts-eur
  WP2 Leiden-UL	research-guts-pilot-lei-raw research-guts-pilot-lei	research-guts-lei-raw research-guts-lei
  WP3 Amsterdam-AUMC	research-guts-pilot-aumc-raw research-guts-pilot-aumc	research-guts-aumc-raw research-guts-aumc

2. Yoda sign in

If you go to your local Yoda web portal you can find the “Sign in” button in the top right. This takes you to a page where you have to sign in with your institutional email (the same email you would use for other SURFconext or SRAM logins). NOTE: You are only able to sign in if you have been added to a workspace!

This sends you on to the SURFconext/SRAM sign in page.

3. Uploading data

After you have signed in you will find that the ‘Research’ and ‘Vault’ buttons have appeared in the top left of the screen.

If you requested a workspace using the same email address you used to sign in, or you have been added to that workspace, you can find it by clicking on Research on the Top left.

In this overview find your research folder (in this example “research-guts-dummy”).

Here you can find the data that you have uploaded previously. We will highlight two major actions here and explain them in more detail later:

• Uploading data: Using the “Upload” button in the top right, you can upload files/folders. You can also drag and drop files directly from your own system into the Yoda portal. There are also other options to upload data, like using curl. An example on using curl can be found in the following chapter. For more information regarding this example of using curl you can visit this page on github.

  For large data uploads like MRI or EEG data there is a way to use curl to send the data to your Yoda workspace using a variation of the following command:
  curl -u [yoda-emailadres] -T [bestand].zip https://[location]-data.irods.surfsara.nl/[research-projectnaam]

• Group management: Using the “Go to group manager” button in the top right, you invite members (if you are the group manager, which you are if you requested the workspace) and give different permissions to members (read/write rights etc.).