# Abby Skofield

Software engineer on the MATLAB Charting team. Former UX researcher.

**Programming Languages:**

C++, MATLAB

**Spoken Languages:**

English

**Pronouns:**

She/her

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**Content Feed**

How to remove 'year' in the x-axis

Starting in MATLAB R2023b, you can add, remove, or update the secondary labels using the new functions xsecondarylabel, yseconda...

2 months ago | 2

Dates beside the axis when plotting datetime

Starting in R2023b, you can use the new family of secondary label functions (e.g. xsecondarylabel) to toggle the visiblity of th...

2 months ago | 1

| accepted

How to remove period stamp in datetime plot ?

Starting in R2023b, you can use the xsecondarylabel function to toggle the visiblity of the secondary label off. t=datetime('no...

2 months ago | 1

How can I plot multiple lines in different colors on a single plot using loops?

Starting in R2019b, use the colororder command to specify a palette of colors for individual plots to use. You can pass in color...

2 months ago | 1

| accepted

Colormap for multline plot

As @Walter Roberson mentioned, you can use the colororder command (starting in R2019b) to specify a color palette for multiple p...

2 months ago | 2

Submitted

Delta Plot

deltaplot creates multiple line segments, each showing the difference between pairs of values.

2 years ago | 2 downloads |

Submitted

Event Stack Chart

eventStackChart visualizes the duration of events by time-of-day or time-of-year.

2 years ago | 1 download |

How do I remove the bottom line of the axes in a saved figure?

If you do not want the axes outline to appear, you can turn it off using this command: axis off If you have an area, bar, or s...

5 years ago | 1

| accepted

What colormap is used to generate ColorOrder?

The lines command returns "the color scheme matches the default ColorOrder property of the Axes." In the default case, the follo...

5 years ago | 1

Solved

Cell joiner

You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

11 years ago

Solved

Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

11 years ago

Solved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

11 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.

There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

11 years ago

Solved

Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

11 years ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

11 years ago

Solved

Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

11 years ago

Solved

Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

11 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

11 years ago

Solved

Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

11 years ago

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

11 years ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

11 years ago

Contour - washed out values

Hi Matthew - hope you have already figured this out. LevelList is indeed where you want to go. You may also want to set the CLim...

11 years ago | 0

Changing font type on a plot axis label when using 'latex' script interpreter

Hi Darren - It isn't possible to specify Helvetica as the font for the LaTeX interpreter - there is a more detailed discussion o...

11 years ago | 0

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

11 years ago

Solved

Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

11 years ago

Solved

Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

11 years ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

11 years ago

Multiple data cursors without having to right click?

If you hold down the ALT key and click elsewhere on your figure, you will be able to add another datatip without selecting 'Crea...

12 years ago | 3