# Tag Info

Accepted

### How to make use of Associations?

I. General I will first try to briefly answer the questions, and then illustrate this with a small but practical application. 1.Speed of insertion / deletion Associations are based on so called Hash ...
• 111k

### How to make use of Associations?

I helped design Association, and I designed and implemented Dataset, so I wanted to comment on question 3: Dataset is designed ...
• 10.5k
Accepted

• 224k

### Error changing Dataset using Part

In lieu of Set, the Query syntax offers various ways to update selective elements of a dataset. For example, we can change the ...
• 67k
Accepted

### Different colors when comparing Plot3D V9 and V10

An alternative to @Rahul's suggested fix: Plot3D[Sin[x+y^2],{x,-3,3},{y,-2,2}, PlotTheme->{"Classic","ClassicLights"}] The associated ...
• 349k

### Why is SparseArray and InterpolationFunction always grayed out?

This is not related to the output cell greying to indicate mismatch with the input cell. You can easily verify this by editing the input cell — it gets further greyed out. The new summarized display ...
• 86.9k

### Error changing Dataset using Part

I have implemented the underlying kernel functionality that is needed to make this possible. However it is not yet implemented on the Dataset side. I don't think this will happen in the immediate ...
• 10.5k
Accepted

### MatchQ-ing Associations (MMA 10)

Association is atomic: <|x -> 1|> // AtomQ True Therefore standard pattern ...
• 264k

### V10's Operator Forms - what are they good for?

Intermingling Operator Forms & Linguistic Connections This answer attempts to draw out linguistic connections in understanding why operator forms seem so useful, a process that can perhaps point ...
• 5,881

### How to access new colour schemes in version 10?

For ease of direct access I have found through digging the following relationships for indexed colors: ...
• 264k
Accepted

### Where is the "Function Navigator" and "Virtual Book" gone?

Although I haven't examined it to see how complete it is, putting Virtual Book into the search bar of the Documentation Center quickly found this: http://reference....
• 264k

### Where is the "Function Navigator" and "Virtual Book" gone?

Update for V13 Sometime by or before V13.0, the functionality changed, and it appears the old navigator is gone. Now you can access the doc page (the same as in Mr.Wizard's answer) with this new ...
• 213k
Accepted

### Join two datasets on keys

Currently in Mathematica v10 you need to be careful joining datasets as the Key[] function doesn't work with a string key for a dataset (it does for an association) . See Taliesin's comment below. ...
• 2,261