Daniel Skoog

Daniel Skoog

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8 years, 199 days
Maple Product Manager

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Daniel Skoog is a Product Manager for Maplesoft. He holds a B.Sc. in Mathematics from Queen’s University, Canada and a M.Sc. in Financial Mathematics from Uppsala University, Sweden. Daniel joined Maplesoft in 2011 and has used his applied technical expertise of mathematics, statistics, data analysis and software design to deliver several exciting new releases. Daniel has also contributed several commands to the Maple library, having authored new routines in Statistics, Finance and data analysis.

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These are replies submitted by Daniel Skoog

A new command, Correlogram, has been added to the Statistics package for Maple 2019. More details: https://www.maplesoft.com/products/maple/new_features/Maple2019/Statistics.aspx or ?Statistics,Correlogram

@Fereydoon_Shekofte : Actually, Maple 2019 is supported on Windows 32-bit; we will update the Maple Roadmap page accordingly. 

@samlin : I certainly share the opinion that we have a few too many strange options in the interface. We are working on streamlining some of this as we speak.

I'll mention that some of what you are looking for may already be available on the markers context menu. If you don't have markers on, go to View - Markers, to enable the marker bar. After that, right click on the marker bar wherever you want to modify the area. "Show Command" should be there, but I'm not sure about the rest. 

@Christopher2222 : If you wanted to install a certain version of a package to an offline computer, you'll need to download it on another machine and then move the downloaded file to the offline machine, and finally run PackageTools:-Install("Physics+Updates.maple") on the moved file.

If you wanted to download the file without a copy of Maple copy the following URL to your browser:


@Christopher2222 : This is covered on the overview page for the Physics update. You can just do:

PackageTools:-Install("5137472255164416", version = 123, overwrite)


I would start with the following FAQ page:


If something on here works, then please report back and let us know what worked.

If nothing works, contact technical support at support (at) maplesoft.com - they should be able to help you debug this issue.

@Christopher2222 : I'd be curious about what you'd like to do once you read in a mp3 file. Is there any additional functionality that you'd like to see added to AudioTools, SignalProcessing, etc. once MP3's were supported?

@itsme : Sorry for the inconvenience of needing to wait for 2018.2. Once the issues are resolved this should hopefully be more simple than before. Any previous hotkeys, menu items, or toolbar buttons will all do the same thing - insert a section. Where it inserts a section will be similar to inserting anything else in Maple - if you're in a section, then it's a subsection. If you're not in a section, then it's a new parent section. Tables and other containers in Maple never had this formal distinction so I think it's a step in the right direction to simply have "Insert Section".

One other workaround that that Copy and Paste of a previous empty section into another section should work as well. 


@itsme : There is a know issue similar to what you describe that will be addressed in 2018.2 that effects only worksheet mode. Are you working in worksheet mode or document mode?

If you are in worksheet, then you may have to use the workaround you mention for now, but it should work fine in a few weeks when 2018.2 is released. 

@tomleslie A scatterplot would be what you're looking for if you wanted to plot the 2 columns as X,Y points. Statistics:-PointPlot will treat all columns of the dataframe as independent data sets and plot them accordingly (although you could use the 'xcoords' option to manually specify one of the columns to be the x- or y-values.

This would work:

IrisData := Import("datasets/iris.csv", base = datadir);
Statistics:-ScatterPlot(IrisData[[`Sepal Length`,`Sepal Width`]]);


In theory, dataplot should produce a similar plot using the option "values", however I'm getting an error there, so I'll investigate if there's potentially a bug there.

@Josci95 : We'd be happy to further investigate your issues if you'd like. You can either post a copy of your file here (as @acer suggests), or you can email us at support (at) maplesoft.com and we can work offline to investigate what's going on.

@Josci95 : Without seeing your example, I can't give an exact solution, but there should be no issue with using column names in dataplot (or any other Statistics visualization). Here's an example:

IrisData := Import("datasets/iris.csv", base = datadir);
dataplot(IrisData[[`Sepal Length`,`Sepal Width`]]);

dataplot(IrisData[[`Sepal Length`,`Petal Width`]],box);

Another note to clarify the comments above: DataFrames assume that each column is an indepedent data set - that's why dataplot generates a plot of the two columns by default. Dataplot for matrices don't follow the same convention.

@Josci95 Are you using Maple 2018?

@tomleslie : You're right. I must have missed this. Maple 2018 did add the ability to use DataFrames and DataSeries in dataplot. Thanks for pointing this out.

If you have a copy of Maple that's older than Maple 2018, then the dataplot command doesn't support DataFrames. Since the dataplot command simply calls many of the visualizations in the Statistics package, which do support DataFrames, I would recommend that you use those as a workaround if you have an older version of Maple.

@Jalale As mentioned in my last reply, there's no easy way to get an embedded table and display it in the worksheet. In the attached, I have added another MathContainer component to hold the value for r-squared. If you'd like to show more details on the results from the Fit command, you can add more components in a similar way and set the properties for those components to be the output from the Fit command.CollectingPoints_2.zip

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