Frequently Asked Questions
General Questions
Can MDV be viewed on a mobile device?
No. MDV's interface relies on multiple panels and is optimized for larger screens.
What file formats does MDV support?
MDV supports:
- Tabular data: CSV (.csv), TSV (.tsv)
- AnnData files: H5 (.h5), H5AD (.h5ad)
- Image data: OME-TIFF (.ome.tiff)
Do I need special packages to load .h5ad files?
No, the server handles AnnData internally. Just upload your file.
What if my file is larger than 2GB?
Use the MDV API or contact support.
Technical Questions
How many data points can MDV handle?
MDV can efficiently handle datasets with millions of data points, though performance may vary depending on visualization complexity and available system resources.
Can I use custom color schemes?
Yes, most chart types support custom color mapping and scaling options through their settings panels.
How do I export my visualizations?
You can export filtered data from table views using the download icon. For chart images, use your browser's screenshot or print-to-PDF functionality.
Data and Privacy
Is my data secure in MDV?
MDV follows standard security practices. For sensitive data, consider using a private installation or contact us about security requirements.
Can I delete my data?
Yes, project owners can delete their projects and associated data through the project management interface.
How long is data stored?
Data retention policies depend on your MDV instance. Contact your administrator or our support team for specific policies.
Troubleshooting
My charts aren't updating when I filter data
Check that all charts are linked to the same data source and that filters are properly applied. Try refreshing the view.
Upload failed for my large file
For files larger than 2GB, use the API upload method or contact support for assistance.
I can't see all my columns in the table
Some columns may be hidden. Use the table settings to show/hide specific columns or expand the table view.
Performance is slow with my dataset
Large datasets may require optimization. Try:
- Reducing the number of displayed points
- Using data sampling features
- Simplifying complex visualizations
Getting Help
Still need help? Here are your options:
- Submit an Issue: Use our GitHub Issues for bug reports and feature requests
- Email Support: Send questions to mdv@ndm.ox.ac.uk
- Check Documentation: Browse our comprehensive guides and tutorials
- Community: Join discussions with other MDV users