polarplot

Plot line in polar coordinates

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Syntax

polarplot(theta,rho)

polarplot(theta,rho,LineSpec)

polarplot(theta1,rho1,...,thetaN,rhoN)

polarplot(theta1,rho1,LineSpec1,...,thetaN,rhoN,LineSpecN)

polarplot(rho)

polarplot(rho,LineSpec)

polarplot(Z)

polarplot(Z,LineSpec)

polarplot(tbl,thetavar,rhovar)

polarplot(tbl,rhovar)

polarplot(pax,___)

polarplot(___,Name,Value)

p = polarplot(___)

Description

Vector and Matrix Data

polarplot(theta,rho) plots a line in polar coordinates, with theta indicating the angle in radians and rho indicating the radius value for each point. The inputs must be vectors of equal length or matrices of equal size. If the inputs are matrices, then polarplot plots columns of rho versus columns of theta. Alternatively, one of the inputs can be a vector and the other a matrix as long as the vector is the same length as one dimension of the matrix.

example

polarplot(theta,rho,LineSpec) sets the line style, marker symbol, and color for the line.

example

polarplot(theta1,rho1,...,thetaN,rhoN) plots multiple rho,theta pairs.

polarplot(theta1,rho1,LineSpec1,...,thetaN,rhoN,LineSpecN) specifies the line style, marker symbol, and color for each line.

polarplot(rho) plots the radius values in rho at evenly spaced angles between 0 and 2π.

example

polarplot(rho,LineSpec) sets the line style, marker symbol, and color for the line.

polarplot(Z) plots the complex values in Z.

example

polarplot(Z,LineSpec) sets the line style, marker symbol, and color for the line.

Table Data

polarplot(tbl,thetavar,rhovar) plots the variables thetavar and rhovar from the table tbl. To plot one data set, specify one variable for thetavar and one variable for rhovar. To plot multiple data sets, specify multiple variables for thetavar, rhovar, or both. If both arguments specify multiple variables, they must specify the same number of variables. (since R2022a)

example

polarplot(tbl,rhovar) plots the radius values in rhovar at evenly spaced angles between 0 and 2π. Timetables are not supported for this syntax. (since R2022a)

Additional Options

polarplot(pax,___) uses the PolarAxes object specified by pax, instead of the current axes.

polarplot(___,Name,Value) specifies properties of the chart line using one or more Name,Value pair arguments. The property settings apply to all the lines. You cannot specify different property values for different lines using Name,Value pairs.

p = polarplot(___) returns one or more chart line objects. Use p to set properties of a specific chart line object after it is created. For a list of properties, see Line Properties.

example

Examples

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Create Polar Plot

Open Live Script

Plot a line in polar coordinates.

theta = 0:0.01:2*pi;
rho = sin(2*theta).*cos(2*theta);
polarplot(theta,rho)

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Before R2022a, polar axes do not include degree symbols by default. To add them, get the polar axes using pax = gca. Then modify the tick labels using pax.ThetaTickLabel = string(pax.ThetaTickLabel) + char(176).

Convert from Degrees to Radians Before Plotting

Open Live Script

Create the data to plot.

theta = linspace(0,360,50);
rho = 0.005*theta/10;

Convert the values in theta from degrees to radians. Then, plot the data in polar coordinates.

theta_radians = deg2rad(theta);
polarplot(theta_radians,rho)

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Plot Multiple Lines in Polar Coordinates

Open Live Script

Plot two lines in polar coordinates. Use a dashed line for the second line.

theta = linspace(0,6*pi);
rho1 = theta/10;
polarplot(theta,rho1)

rho2 = theta/12;
hold on
polarplot(theta,rho2,'--')
hold off

Figure contains an axes object with type polaraxes. The polaraxes object contains 2 objects of type line.

Plot Radius Values at Equally Spaced Angles

Open Live Script

Specify only the radius values, without specifying the angle values. polarplot plots the radius values at equally spaced angles that span from 0 to $2 π$ . Display a circle marker at each data point.

rho = 10:5:70;
polarplot(rho,'-o')

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Plot Negative Radius Values

Open Live Script

Create a polar plot using negative radius values. By default, polarplot reflects negative values through the origin.

theta = linspace(0,2*pi);
rho = sin(theta);
polarplot(theta,rho)

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Change the limits of the r-axis so it ranges from -1 to 1.

rlim([-1 1])

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Specify Line Color for Polar Plot

Open Live Script

Create a polar plot using a red line with circle markers.

theta = linspace(0,2*pi,25);
rho = 2*theta;
polarplot(theta,rho,'r-o')

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Specify Line Color After Creation

Open Live Script

Create a polar plot and return the chart line object.

theta = linspace(0,2*pi,25);
rho = 2*theta;
p = polarplot(theta,rho);

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Change the line color and width and add markers.

p.Color = 'magenta';
p.Marker = 'square';
p.MarkerSize = 8;

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Create Polar Plot with Complex Values

Open Live Script

Plot complex values in polar coordinates. Display markers at each point without a line connecting them.

Z = [2+3i 2 -1+4i 3-4i 5+2i -4-2i -2+3i -2 -3i 3i-2i];
polarplot(Z,'*')

Figure contains an axes object with type polaraxes. The polaraxes contains a line object which displays its values using only markers.

Plot Coordinates from a Table

Open Live Script

A convenient way to plot data from a table is to pass the table to the polarplot function and specify the variables to plot.

Create a table with two variables. Then display the first three rows of the table.

Angle = linspace(0,3*pi,50)';
Radius = (1:50)';
tbl = table(Angle,Radius);
head(tbl,3)

     Angle     Radius
    _______    ______

          0      1   
    0.19234      2   
    0.38468      3

Plot the Angle and Radius variables. Return the Line object as p.

p = polarplot(tbl,"Angle","Radius");

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

To modify aspects of the line, set the LineStyle, Color, and Marker properties on the Line object. For example, change the line to a red dotted line with circle markers.

p.LineStyle = ":";
p.Color = "red";
p.Marker = "o";

Figure contains an axes object with type polaraxes. The polaraxes object contains an object of type line.

Plot Multiple Data Sets from Table

Open Live Script

Create a table with three variables. Then display the first three rows in the table.

Angle = linspace(0,3*pi,50)';
Radius1 = (1:50)';
Radius2 = Radius1/2;
tbl = table(Angle,Radius1,Radius2);
head(tbl,3)

     Angle     Radius1    Radius2
    _______    _______    _______

          0       1         0.5  
    0.19234       2           1  
    0.38468       3         1.5

Plot the Radius1 and Radius2 variables against the Angle variable. Add a legend. Notice that the legend labels match the variable names.

polarplot(tbl,"Angle",["Radius1" "Radius2"])
legend

Figure contains an axes object with type polaraxes. The polaraxes object contains 2 objects of type line.

Input Arguments

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`theta` — Angle values
vector | matrix

Angle values, specified as a vector or matrix. Specify the values in radians. To convert data from degrees to radians, use deg2rad.

To change the limits of the theta-axis, use thetalim.

Example: [0 pi/2 pi 3*pi/2 2*pi]

`rho` — Radius values
vector | matrix

Radius values, specified as a vector or matrix. By default, negative values are reflected through 0. A point is reflected by taking the absolute value of its radius, and adding 180 degrees to its angle.

To change the limits of the r-axis, use rlim.

Example: [1 2 3 4 5]

`Z` — Complex values
vector | matrix

Complex values, specified as a vector or matrix where each element is of the form rho*e^i*theta, or x+iy, where:

rho = sqrt(x^2+y^2)
theta = atan(y/x)

Example: [1+2i 3+4i 3i]

`LineSpec` — Line style, marker, and color
string scalar | character vector

Line style, marker, and color, specified as a string scalar or character vector containing symbols. The symbols can appear in any order. You do not need to specify all three characteristics (line style, marker, and color). For example, if you omit the line style and specify the marker, then the plot shows only the marker and no line.

Example: "--or" is a red dashed line with circle markers.

Line Style	Description	Resulting Line
`"-"`	Solid line
`"--"`	Dashed line
`":"`	Dotted line
`"-."`	Dash-dotted line

Marker	Description	Resulting Marker
`"o"`	Circle
`"+"`	Plus sign
`"*"`	Asterisk
`"."`	Point
`"x"`	Cross
`"_"`	Horizontal line
`"\|"`	Vertical line
`"square"`	Square
`"diamond"`	Diamond
`"^"`	Upward-pointing triangle
`"v"`	Downward-pointing triangle
`">"`	Right-pointing triangle
`"<"`	Left-pointing triangle
`"pentagram"`	Pentagram
`"hexagram"`	Hexagram

Color Name	Short Name	RGB Triplet
`"red"`	`"r"`	`[1 0 0]`
`"green"`	`"g"`	`[0 1 0]`
`"blue"`	`"b"`	`[0 0 1]`
`"cyan"`	`"c"`	`[0 1 1]`
`"magenta"`	`"m"`	`[1 0 1]`
`"yellow"`	`"y"`	`[1 1 0]`
`"black"`	`"k"`	`[0 0 0]`
`"white"`	`"w"`	`[1 1 1]`

`tbl` — Source table
table | timetable

Source table containing the data to plot, specified as a table or a timetable.

`thetavar` — Table variables containing theta values
string array | character vector | cell array | pattern | numeric scalar or vector | logical vector | `vartype()`

Table variables containing the theta values, specified using one of the indexing schemes from the table.

Indexing Scheme Examples

Indexing Scheme	Examples
Variable names: A string, character vector, or cell array. A `pattern` object.	`"A"` or `'A'` — A variable named `A` `["A","B"]` or `{'A','B'}` — Two variables named `A` and `B` `"Var"+digitsPattern(1)` — Variables named `"Var"` followed by a single digit
Variable index: An index number that refers to the location of a variable in the table. A vector of numbers. A logical vector. Typically, this vector is the same length as the number of variables, but you can omit trailing `0` or `false` values.	`3` — The third variable from the table `[2 3]` — The second and third variables from the table `[false false true]` — The third variable
Variable type: A `vartype` subscript that selects variables of a specified type.	`vartype("categorical")` — All the variables containing categorical values

Variable names:

A string, character vector, or cell array.
A pattern object.

"A" or 'A' — A variable named A
["A","B"] or {'A','B'} — Two variables named A and B
"Var"+digitsPattern(1) — Variables named "Var" followed by a single digit

Variable index:

An index number that refers to the location of a variable in the table.
A vector of numbers.
A logical vector. Typically, this vector is the same length as the number of variables, but you can omit trailing 0 or false values.

3 — The third variable from the table
[2 3] — The second and third variables from the table
[false false true] — The third variable

Variable type:

A vartype subscript that selects variables of a specified type.

vartype("categorical") — All the variables containing categorical values

The table variables you specify can contain any real numeric data type. If thetavar and rhovar both specify multiple variables, the number of variables must be the same.

Example: polarplot(tbl,["th1","th2"],"rho") specifies the table variables named th1 and th2 for the theta-coordinates.

Example: polarplot(tbl,2,"rho") specifies the second variable for the theta-coordinates.

Example: polarplot(tbl,vartype("numeric"),"rho") specifies all numeric variables for the theta-coordinates.

`rhovar` — Table variables containing rho values
string array | character vector | cell array | pattern | numeric scalar or vector | logical vector | `vartype()`

Table variables containing the rho values, specified using one of the indexing schemes from the table.

Indexing Scheme Examples

Indexing Scheme	Examples
Variable names: A string, character vector, or cell array. A `pattern` object.	`"A"` or `'A'` — A variable named `A` `["A","B"]` or `{'A','B'}` — Two variables named `A` and `B` `"Var"+digitsPattern(1)` — Variables named `"Var"` followed by a single digit
Variable index: An index number that refers to the location of a variable in the table. A vector of numbers. A logical vector. Typically, this vector is the same length as the number of variables, but you can omit trailing `0` or `false` values.	`3` — The third variable from the table `[2 3]` — The second and third variables from the table `[false false true]` — The third variable
Variable type: A `vartype` subscript that selects variables of a specified type.	`vartype("categorical")` — All the variables containing categorical values

Variable names:

A string, character vector, or cell array.
A pattern object.

"A" or 'A' — A variable named A
["A","B"] or {'A','B'} — Two variables named A and B
"Var"+digitsPattern(1) — Variables named "Var" followed by a single digit

Variable index:

An index number that refers to the location of a variable in the table.
A vector of numbers.
A logical vector. Typically, this vector is the same length as the number of variables, but you can omit trailing 0 or false values.

3 — The third variable from the table
[2 3] — The second and third variables from the table
[false false true] — The third variable

Variable type:

A vartype subscript that selects variables of a specified type.

vartype("categorical") — All the variables containing categorical values

The table variables you specify can contain any real numeric data type. If thetavar and rhovar both specify multiple variables, the number of variables must be the same.

Example: polarplot(tbl,"theta",["rho1","rho2"]) specifies the table variables named rho1 and rho2 for the radius values.

Example: polarplot(tbl,"theta",2) specifies the second variable for the radius values.

Example: polarplot(tbl,"theta",vartype("numeric")) specifies all numeric variables for the radius values.

`pax` — `PolarAxes` object
`PolarAxes` object

PolarAxes object. You can modify the appearance and behavior of a PolarAxes object by setting its properties. For a list of properties, see PolarAxes Properties.

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: 'LineWidth',3

Name,Value pair settings apply to all the lines plotted. You cannot specify different Name,Value pairs for each line using this syntax. Instead, return the chart line objects and use dot notation to set the properties for each line.

The properties listed here are only a subset. For a full list, see Line Properties.

`Color` — Line color
`[0 0.4470 0.7410]` (default) | RGB triplet | hexadecimal color code | `'r'` | `'g'` | `'b'` | ...

Line color, specified as an RGB triplet, a hexadecimal color code, a color name, or a short name.

For a custom color, specify an RGB triplet or a hexadecimal color code.

An RGB triplet is a three-element row vector whose elements specify the intensities of the red, green, and blue components of the color. The intensities must be in the range [0,1], for example, [0.4 0.6 0.7].
A hexadecimal color code is a string scalar or character vector that starts with a hash symbol (#) followed by three or six hexadecimal digits, which can range from 0 to F. The values are not case sensitive. Therefore, the color codes "#FF8800", "#ff8800", "#F80", and "#f80" are equivalent.

Alternatively, you can specify some common colors by name. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes.

Color Name	Short Name	RGB Triplet	Hexadecimal Color Code	Appearance
`"red"`	`"r"`	`[1 0 0]`	`"#FF0000"`
`"green"`	`"g"`	`[0 1 0]`	`"#00FF00"`
`"blue"`	`"b"`	`[0 0 1]`	`"#0000FF"`
`"cyan"`	`"c"`	`[0 1 1]`	`"#00FFFF"`
`"magenta"`	`"m"`	`[1 0 1]`	`"#FF00FF"`
`"yellow"`	`"y"`	`[1 1 0]`	`"#FFFF00"`
`"black"`	`"k"`	`[0 0 0]`	`"#000000"`
`"white"`	`"w"`	`[1 1 1]`	`"#FFFFFF"`
`"none"`	Not applicable	Not applicable	Not applicable	No color

Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB^® uses in many types of plots.

RGB Triplet	Hexadecimal Color Code	Appearance
`[0 0.4470 0.7410]`	`"#0072BD"`
`[0.8500 0.3250 0.0980]`	`"#D95319"`
`[0.9290 0.6940 0.1250]`	`"#EDB120"`
`[0.4940 0.1840 0.5560]`	`"#7E2F8E"`
`[0.4660 0.6740 0.1880]`	`"#77AC30"`
`[0.3010 0.7450 0.9330]`	`"#4DBEEE"`
`[0.6350 0.0780 0.1840]`	`"#A2142F"`

`LineStyle` — Line style
`"-"` (default) | `"--"` | `":"` | `"-."` | `"none"`

Line style, specified as one of the options listed in this table.

Line Style	Description	Resulting Line
`"-"`	Solid line
`"--"`	Dashed line
`":"`	Dotted line
`"-."`	Dash-dotted line
`"none"`	No line	No line

`LineWidth` — Line width
`0.5` (default) | positive value

Line width, specified as a positive value in points, where 1 point = 1/72 of an inch. If the line has markers, then the line width also affects the marker edges.

The line width cannot be thinner than the width of a pixel. If you set the line width to a value that is less than the width of a pixel on your system, the line displays as one pixel wide.

`Marker` — Marker symbol
`"none"` (default) | `"o"` | `"+"` | `"*"` | `"."` | ...

Marker symbol, specified as one of the values listed in this table. By default, the object does not display markers. Specifying a marker symbol adds markers at each data point or vertex.

Marker	Description	Resulting Marker
`"o"`	Circle
`"+"`	Plus sign
`"*"`	Asterisk
`"."`	Point
`"x"`	Cross
`"_"`	Horizontal line
`"\|"`	Vertical line
`"square"`	Square
`"diamond"`	Diamond
`"^"`	Upward-pointing triangle
`"v"`	Downward-pointing triangle
`">"`	Right-pointing triangle
`"<"`	Left-pointing triangle
`"pentagram"`	Pentagram
`"hexagram"`	Hexagram
`"none"`	No markers	Not applicable

`MarkerSize` — Marker size
`6` (default) | positive value

Marker size, specified as a positive value in points, where 1 point = 1/72 of an inch.

`MarkerFaceColor` — Marker fill color
`"none"` (default) | `"auto"` | RGB triplet | hexadecimal color code | `"r"` | `"g"` | `"b"` | ...

Marker fill color, specified as "auto", an RGB triplet, a hexadecimal color code, a color name, or a short name. The "auto" option uses the same color as the Color property of the parent axes. If you specify "auto" and the axes plot box is invisible, the marker fill color is the color of the figure.

For a custom color, specify an RGB triplet or a hexadecimal color code.

An RGB triplet is a three-element row vector whose elements specify the intensities of the red, green, and blue components of the color. The intensities must be in the range [0,1], for example, [0.4 0.6 0.7].
A hexadecimal color code is a string scalar or character vector that starts with a hash symbol (#) followed by three or six hexadecimal digits, which can range from 0 to F. The values are not case sensitive. Therefore, the color codes "#FF8800", "#ff8800", "#F80", and "#f80" are equivalent.

Alternatively, you can specify some common colors by name. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes.

Color Name	Short Name	RGB Triplet	Hexadecimal Color Code	Appearance
`"red"`	`"r"`	`[1 0 0]`	`"#FF0000"`
`"green"`	`"g"`	`[0 1 0]`	`"#00FF00"`
`"blue"`	`"b"`	`[0 0 1]`	`"#0000FF"`
`"cyan"`	`"c"`	`[0 1 1]`	`"#00FFFF"`
`"magenta"`	`"m"`	`[1 0 1]`	`"#FF00FF"`
`"yellow"`	`"y"`	`[1 1 0]`	`"#FFFF00"`
`"black"`	`"k"`	`[0 0 0]`	`"#000000"`
`"white"`	`"w"`	`[1 1 1]`	`"#FFFFFF"`
`"none"`	Not applicable	Not applicable	Not applicable	No color

Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB uses in many types of plots.

RGB Triplet	Hexadecimal Color Code	Appearance
`[0 0.4470 0.7410]`	`"#0072BD"`
`[0.8500 0.3250 0.0980]`	`"#D95319"`
`[0.9290 0.6940 0.1250]`	`"#EDB120"`
`[0.4940 0.1840 0.5560]`	`"#7E2F8E"`
`[0.4660 0.6740 0.1880]`	`"#77AC30"`
`[0.3010 0.7450 0.9330]`	`"#4DBEEE"`
`[0.6350 0.0780 0.1840]`	`"#A2142F"`

Tips

To convert data from degrees to radians, use deg2rad. To convert data from radians to degrees, use rad2deg.
You can modify polar axes properties to customize the chart. For a list of properties, see PolarAxes Properties.
To plot additional data in the polar axes, use the hold on command. However, you cannot plot data that requires Cartesian axes in a polar chart.

Version History

Introduced in R2016a

expand all

R2022b: Plots created with tables preserve special characters in legend labels

When you pass a table and one or more variable names to the polarplot function, the legend labels now display any special characters that are included in the table variable names, such as underscores. Previously, special characters were interpreted as TeX or LaTeX characters.

For example, if you pass a table containing a variable named Sample_Number to the polarplot function and then display a legend, the underscore appears in the legend label. In R2022a and earlier releases, the underscore is interpreted as a subscript.

Release Label for Table Variable "Sample_Number"

Release	Label for Table Variable `"Sample_Number"`
R2022b
R2022a

R2022b

R2022a

To display legend labels with TeX or LaTeX formatting, call the legend function with the desired label strings after plotting. For example:

legend(["Sample_Number" "Another_Legend_Label"])

R2022a: Pass tables directly to `polarplot`

Create plots by passing a table to the polarplot function followed by the variables you want to plot. When you specify your data as a table, the axis labels and the legend (if present) are automatically labeled using the table variable names.

polarplot

Syntax

Description

Vector and Matrix Data

Table Data

Additional Options

Examples

Create Polar Plot

Convert from Degrees to Radians Before Plotting

Plot Multiple Lines in Polar Coordinates

Plot Radius Values at Equally Spaced Angles

Plot Negative Radius Values

Specify Line Color for Polar Plot

Specify Line Color After Creation

Create Polar Plot with Complex Values

Plot Coordinates from a Table

Plot Multiple Data Sets from Table

Input Arguments

theta — Angle values vector | matrix

rho — Radius values vector | matrix

Z — Complex values vector | matrix

LineSpec — Line style, marker, and color string scalar | character vector

tbl — Source table table | timetable

thetavar — Table variables containing theta values string array | character vector | cell array | pattern | numeric scalar or vector | logical vector | vartype()

rhovar — Table variables containing rho values string array | character vector | cell array | pattern | numeric scalar or vector | logical vector | vartype()

pax — PolarAxes object PolarAxes object

Name-Value Arguments

Color — Line color [0 0.4470 0.7410] (default) | RGB triplet | hexadecimal color code | 'r' | 'g' | 'b' | ...

LineStyle — Line style "-" (default) | "--" | ":" | "-." | "none"

LineWidth — Line width 0.5 (default) | positive value

Marker — Marker symbol "none" (default) | "o" | "+" | "*" | "." | ...

MarkerSize — Marker size 6 (default) | positive value

MarkerFaceColor — Marker fill color "none" (default) | "auto" | RGB triplet | hexadecimal color code | "r" | "g" | "b" | ...

Tips

Version History

R2022b: Plots created with tables preserve special characters in legend labels

R2022a: Pass tables directly to polarplot

See Also

Functions

Properties

Topics

`theta` — Angle values
vector | matrix

`rho` — Radius values
vector | matrix

`Z` — Complex values
vector | matrix

`LineSpec` — Line style, marker, and color
string scalar | character vector

`tbl` — Source table
table | timetable

`thetavar` — Table variables containing theta values
string array | character vector | cell array | pattern | numeric scalar or vector | logical vector | `vartype()`

`rhovar` — Table variables containing rho values
string array | character vector | cell array | pattern | numeric scalar or vector | logical vector | `vartype()`

`pax` — `PolarAxes` object
`PolarAxes` object

`Color` — Line color
`[0 0.4470 0.7410]` (default) | RGB triplet | hexadecimal color code | `'r'` | `'g'` | `'b'` | ...

`LineStyle` — Line style
`"-"` (default) | `"--"` | `":"` | `"-."` | `"none"`

`LineWidth` — Line width
`0.5` (default) | positive value

`Marker` — Marker symbol
`"none"` (default) | `"o"` | `"+"` | `"*"` | `"."` | ...

`MarkerSize` — Marker size
`6` (default) | positive value

`MarkerFaceColor` — Marker fill color
`"none"` (default) | `"auto"` | RGB triplet | hexadecimal color code | `"r"` | `"g"` | `"b"` | ...

R2022a: Pass tables directly to `polarplot`