Skip to main content

Recently Updated Pages

Animating the mMDS/nMDS iterations

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

Another feature introduced in PRIMER 7 is more of a teaching tool than an analysis method per se,...

Updated 3 days ago by Abby Miller

Identifying points on the Shepard plot

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

Show this by running the matching nMDS to the above mMDS, this time setting (Minimum stress: 0.00...

Updated 3 days ago by Abby Miller

Metric MDS; (Great-circle distances for world cities)

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

A significant new feature in PRIMER 7 is the construction of metric MDS ordinations (mMDS), toget...

Updated 3 days ago by Abby Miller

Bubble data selection error & Refresh

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

It is worth repeating the point made at the start of these examples on bubble plots: if the routi...

Updated 3 days ago by Abby Miller

Bubble plots on averages

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

For these data, a segmented bubble plot on a 2-d ordination provides a succinct summary of the re...

Updated 3 days ago by Abby Miller

(Bristol Channel zooplankton)

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

The BC zooplankton density data sheet in C:\Examples v7\BC zooplankton was used in the last half ...

Updated 3 days ago by Abby Miller

Environment bubble & vector plots

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

An important use for a bubble plot is in displaying the behaviour of a further measured variable,...

Updated 3 days ago by Abby Miller

Duplicate graphs

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

Abra prismatica appears to be a species which can tolerate the contaminant or disturbance effects...

Updated 3 days ago by Abby Miller

Bubble images

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

A further new option on this Key dialog is to replace single-coloured circles with a (rectangular...

Updated 3 days ago by Abby Miller

Bubble key

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

The key to the left of the plot, which gives the root-transformed scale for Abra prismatica count...

Updated 3 days ago by Abby Miller

Matching variable sets; (Ekofisk oil-field study)

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

The final two sections of the Graph>Special dialog concern overlaying vectors and ‘bubbles’ of nu...

Updated 3 days ago by Abby Miller

(Tees Bay macrofauna time series)

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

A clearer, static, example of the benefits of split trajectories on ordination plots is provided ...

Updated 3 days ago by Abby Miller

Trajectories split & then sequence animated

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

In fact, if the animation is repeated with trajectories running across months, separately drawn f...

Updated 3 days ago by Abby Miller

Sequence animation, captured in 2- & 3-d

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

The time pattern above is evident from simple addition of the trajectory but there are occasions ...

Updated 3 days ago by Abby Miller

Overlay trajectories

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

A trajectory joining points on an ordination is simply added using Graph>Special>Overlays and tak...

Updated 3 days ago by Abby Miller

Higher-d & scree plots (WA fish diet)

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

Run nMDS at a wider range of dimensionalities than the default and ask for a scree plot: Analyse>...

Updated 3 days ago by Abby Miller

(W Australia fish diets)

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

Re-open the workspace WA fish ws from C:\Examples v7\WA fish diets, which will provide an example...

Updated 3 days ago by Abby Miller

3-d ordination plots & axes selection

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

As we have seen for the nMDS run on the Exe nematode data, in the first graphic of this Section, ...

Updated 3 days ago by Abby Miller

Cluster overlays on MDS plots

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

The second way in which a cluster analysis can be displayed on a 2-d MDS plot, to aid assessment ...

Updated 3 days ago by Abby Miller

Linking MDS plots to cluster analysis

PRIMER v7: User Manual / Tutorial 8. Multi-dimensional scaling (Non-metri...

The 2-d ordination plot shows a clear separation of the nematode assemblages at these 19 sites in...

Updated 4 days ago by Abby Miller