topic Re: Trend Line Chart in ArcGIS Pro Questions

Trend Line Chart

AndrewHargreaves2 — Fri, 19 Oct 2018 18:18:37 GMT

How do I create a trend line in a line chart within ArcGIS Pro? For example, as well my line chart hitting each individual data point I would like an average trend.

Re: Trend Line Chart

DanPatterson_Retired — Fri, 19 Oct 2018 19:43:26 GMT

These are your options within ArcGIS Pro

Types of tabular charts—Charts | ArcGIS Desktop

You can use matplotlib and python which comes packaged with pro, but it requires some scripting.

Examples can be found here

Matplotlib Examples — Matplotlib 2.0.2 documentation

Re: Trend Line Chart

AndrewHargreaves2 — Mon, 22 Oct 2018 17:48:13 GMT

hmmmm...OK, so you're stating I can NOT have a trend line out of the box?

Re: Trend Line Chart

DanPatterson_Retired — Mon, 22 Oct 2018 17:58:44 GMT

the line chart or scatterplot... both require that the X-axis be a continuous variable. If you have discontinuities in time, you might have to produce separate xy pairs to plot those (I don't use arc* anything graphing so I haven't explored at all)

Other packages which you have access to with the ArcGIS Pro's anaconda installation (ie Matplotlib) have a much broader range of graphing options. You can also import other packages into the Anaconda distribution, but I wouldn't recommend going that route until you have to do more than the occasional graph

Re: Trend Line Chart

FloraVale — Wed, 06 Feb 2019 02:01:44 GMT

Hi wws_ahargreaves ,

Can you give me an example of a use case in which you would add a trend to a line chart?

Re: Trend Line Chart

DanPatterson_Retired — Wed, 06 Feb 2019 02:46:16 GMT

Unless I misread Andrew's post, I think he wants an xy plot with the plot points connected (ie his trend), then he needs a regression plot through the points that make up the trend.

My definitions of xy vs line are:

xy graph: x and y represent variables on an interval/ratio scale

line plot: x is measured on a nominal or ordinal scale