# whosnh5

List variables in an valid .nh5 file with sizes and types.

## 📝 Syntax

* whosnh5(filename)
* st = whosnh5(filename)
* whosnh5(filename, var1, ..., varN)
* st = whosnh5(filename, var1, ..., varN)

## 📥 Input argument

* filename - a string: .nh5 filename.
* var1, ..., varN - string: Names of variables to inspect.

## 📤 Output argument

* st - stores information about the variables in the structure array st.

## 📄 Description

whosnh5 lists variables in an valid .nh5 file.

## 💡 Example

```matlab
A = ones(3, 4);
B = 'Nelson';
C = sparse(true);
D = sparse(3i);
savenh5([tempdir(), 'example_whosnh5.nh5'], 'A', 'B', 'C', 'D')
whosnh5([tempdir(), 'example_whosnh5.nh5'])
st = whosnh5([tempdir(), 'example_whosnh5.nh5'])
```

## 🔗 See also

[whosmat](https://nelson-9.gitbook.io/Nelson/markdown/en/matio/whosmat), [whos](https://nelson-9.gitbook.io/Nelson/markdown/en/memory_manager/whos).

## 🕔 History

| Version | 📄 Description  |
| ------- | --------------- |
| 1.0.0   | initial version |
