Legend box matlab

Legend box matlab. I’ve used an ‘empty’ subplot position for a legend location from time to time, using the 'Position' property to place it. 88]); l = legend (BackgroundAlpha=. For instance, placing the legend inside: clear all, close all x = 1:10; y1 = 4*x; y2 = 3*x + 5; Jul 17, 2021 · Select a Web Site. By changing property values, you can modify certain aspects of the legend. For example, if the first and second outputs to legend() are both included, it interferes with the ability to change the fontsize of the legend text . Open in MATLAB Online. A string starting with an underscore is the default label for all artists, so calling Axes. Jul 16, 2017 · z8080: notice that in Carl's posted code, Carl takes the second output of legend(), whereas in your code, you take the first output of legend. Provide details and share your research! But avoid …. 2. The axes is set correctly. Create the rectangle with curved corners by specifying the curvature as the scalar value 0. For data units of equal length along both the x -axis and y -axis, use axis equal. Feb 14, 2013 · You have a legend with two entries. 88 . boxsize, icon length etc. 6. This is because the graph is in big loop. If you do not specify cgroupdata, then b contains one object. The layout has a grid of tiles in the center, and four tiles along the outer edges. Then in the new axis you can change the legend in that handle to be the legend of only those lines that are representative of the second property. Nov 11, 2016 · How to change the color of the border of the legend box? leg = plt. Nov 29, 2013 · The easiest way if trying to make fine adjustments is to first define the final size/position of the legend, and then reposition/resize elements within to taste. In the legend box, I want to mark each color line according to the type of body which it marks: green line : head; yellow line : torso ; purple line : right arm; cyan line : left arm; red line : left leg; blue line : right leg xlabel ('Wall thickness [mm]') % x-axis label. Nov 2, 2015 · You can use the text function to add text to a Matlab figure. Jun 27, 2009 · You can change the font size for a MATLAB legend by setting the 'FontSize' property of the Legend object. Plot random data in each axes. Rectangle also has a new FaceAlpha property and you can read more about both in this blog post. Sep 30, 2013 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I want to remove the space within the legend. Link. The legend() function in MATLAB is a valuable tool used to add legends to a plot, aiding in the interpretation of data and enhancing the visualization. legend boxoff. ). legend ('boxoff') % <= Change This Line. Nov 30, 2018 · Hi, Every time I wanted to split my legend into more than one column I always used the function "columnlegend". Theme. Use dot notation to refer to a particular object and property: plot (rand (3)) lgd = legend ('a','b','c'); c = lgd. legend. Edited: David Angeles on 24 Sep 2021. it should be transparent. Try using: Theme. 0 (R12) and later versions: Theme. By changing the bottom and top coordinates, you can move the legend to where you want it. Oct 15, 2012 · And I would like to make a legend for it. import numpy as np. Create a scatter plot and display the box outline around the axes. On each box, the central mark indicates the median, and the bottom and top edges of the box indicate the 25th and 75th percentiles, respectively. Oct 9, 2012 · Use the l = legend(__) syntax to return the legend object and set Legend Properties instead. l. expand all in page. set_edgecolor('b Mar 15, 2022 · How to add extra text to plot legend?. the box plot. NumColumns = 2; Other attributes like "Location" can be used to adjust the position of legend. For the traditional plotstyle, the rows correspond % to: upper whisker, lower whisker, upper adjacent value, lower adjacent % value, box, median, and outliers. Here's an example of placing a legend in the north tile, under the title. However, I failed. hdl = legend({'AAA', 'BBB', 'CCC'}) % Set the new size. Choose a web site to get translated content where available and see local events and offers. set (h (1), 'visible', 'off') % Hides the legend's axes (legend border and background) The following example demonstrates how to remove the legend border and legend background for MATLAB 6. g 'NorthWest', 'NorthWestOutside' or as a standard 1-by-4 position vector for precise manual positioning. Call the tiledlayout function to create a 2-by-1 tiled chart layout. Jul 14, 2018 · The graph has two legends and plotted from a big loop. Copy. hdl. x = linspace (0,2*pi); y = sin (x); plot (x,y) Additionally, if the BoxEdgeColorMode property of the BoxChart object is set to 'auto', then MATLAB updates the box edge color with the value of the box face color. Control the label for the new data series by setting the DisplayName property as a name-value pair during creation. But the changing of the two properties gave me a hard time. legend (legend_handle) refreshes the Aug 1, 2014 · allows you to either specify the 'location' as one of a huge number of pre-defined positions e. Apr 25, 2023 · The legend call wants one plotted object (line, marker, etc. At the end there are same colors (both blue) for both lines which represented in the legend box however the data itself are in blue and red. legend(' string1 ',' string2 ',) legend(h,' string1 ',' string2 ',) legend(string_matrix) legend(h,string_matrix) legend(axes_handle,) legend (' off') legend('hide') legend('show') legend('boxoff') legend('boxon') legend(h,) legend(,pos) h = legend() [legend_h,object_h,plot_h,text_strings] = legend() Description. For example, consider a 3-by-3 tiled chart layout. Please could you let me know how this can be done retaining the rest of the legend items, deleting data 1 legend from the legend bar. You can use the Color option of text for colours and TeX to draw lines or even _. I have tried to use the position property to change the dimension of the legend but it didn't work. for example: yyaxis left plot(A) yya For my Plot2LaTeX function I am trying to change the text of a existing legend without changing the appearance of the legend itself, e. Copy Command. 0) For the matplotlib object oriented approach: axes. In this article, developers can learn effective ways to implement and optimize MATLAB legends, making their plots not only readable but also professional. legend_handle = legend returns the handle to the legend on the current axes or empty if no legend exists. legend without any arguments and without setting the labels manually will result in a UserWarning and an empty legend being drawn. This legend guide extends the legend docstring - please read it before proceeding with this guide. Syntax. legend() leg. Also, you may find that when writing out images MATLAB helpfully redraws the image, resetting your adjustments. MATLAB displays only one legend per Axes. rescale the horizontal space used by each legend symbol. The argument ax can precede any of the input argument combinations in the previous syntaxes. An entry is made up of exactly one key and one label. Note. Use dot notation to set properties. The findobj() reduces the list down to just the text objects. This guide makes use of some common terms, which are documented here for clarity: A legend is made up of one or more legend entries. aov = anova({brand,poppertype}, popcorn(:), FactorNames=[ "Brand", "PopperType" ]); Create a 1-by-2 tiled chart layout. Right now I have given up using the 'legend' command from matlab and have implemented using the 'axes' command. 5:10; fi May 28, 2016 · ADDENDUM: Well the above doesn't work, either -- even though plotyy() returns two axes handles that are overlaid on each other to appear as one; calling legend() with the second axes handle as the target creates a new legend, but it also obliterates the first -- one ends up with an array of two legend handle objects, but they're just two copies the same object; internally the fact the two axes legend associates strings with the objects in the axes in the same order that they are listed in the axes Children property. An Axes object can have only one legend. boxchart(ax, ___) plots into the axes specified by ax instead of into the current axes ( gca ). pyplot as plt. I am creating a plot with two different y axes. Oct 5, 2016 · The position values are normalized to the figure window's position by default (values between 0 and 1). Then, use dot notation to access the 'FontSize' property and set the value to 14 points. Add a second rectangle that has the shortest side completely curved by specifying the curvature as the scalar value 1. See this blog post on Undocumented MATLAB for info on that. If we change inside padding with borderpad=2, we'll make the overall legend box larger (the units are multiples of the font size, similar to em ): import matplotlib. Ran in: Use the legend () function at the end of your plot with and empty string entry. The legend reflects the visibility of graphics objects in the axes. ylabel ('ln (F_ {max,k}) [-]') % y-axis label. Based on your location, we recommend that you select: . Ex: Theme. Use name-value pairs in the legend command. tiledlayout(2,1) y1 = rand(3); ax1 = nexttile; plot(y1) y2 = rand(5); ax2 = nexttile; Mar 2, 2020 · There is an undocumented propertie ItemTokenSize to do that: % Fixe the new size of each box: box_size = [10 10 10] % Get the handle. Placing the legend (bbox_to_anchor)A legend is positioned inside the bounding box of the axes using the loc argument to plt. Jan 20, 2011 · I would like to make one legend on a figure with multiple subplots, and place it either at the top-middle, or align the legend just above one of my subplots. linspace(0, 10, 100) fig, ax = plt. Feb 2, 2024 · This article explores how to enhance legend customization using both the legend() and text() functions in MATLAB. Jun 18, 2013 · Having a legend without the box. example. LEGEND (,'Location',LOC) adds a legend in the specified. It offers a different method of positioning the legend, as well as options to: organize legend text and symbols in a grid with a specified number of rows and/or columns. e. x = rand(10,1); y = rand(10,1); scatter(x,y) box on. To prevent this behavior, set the legends "AutoUpdate" property. Use the Legend object. Traducir. E. l = legend. And Matlab seems not to have option to manipulate the legend marker, color and linestyle. Now you can use this handle h as the first argument of your legend function. Abrir en MATLAB Online. get_frame(). >> text(x, y, str); where x and y are the coordinates in the figure where you want to add the text str. If a legend exists, then the legend function updates the existing legend. ) for each item in it, and will complain if there are more legend items than plotted objects. Jul 8, 2015 · You can create each plot with a handle hi, of which you store only the first entry in h. Would you like to help me. TextColor = 'red'; Sep 16, 2022 · How to set position of the legend outside the Learn more about legend, plot MATLAB I tried to remove one of the legend item (data 1) as shown below which had been generated default using the legend box icon on the figure pallete, however, it was unsuccessful to do that. Kindly help. Position (4) = 10; y2 = cos(2*x); plot(x,y2) legend( 'cos(x)', 'cos(2x)') If you add or delete a data series from the axes, the legend updates accordingly. Specific artists can be excluded from the automatic legend element selection by using a label starting with an underscore, "_". By default, the legend annotates the current Axes. Apr 14, 2016 · % H = BOXPLOT() returns the handle H to the lines in the box plot. Its basic syntax is as legend ('boxon'), legend (axes_handle,'boxon') adds a box to the legend in the current axes or the axes specified by axes_handle. However it will only display the legend for the first plot. Nov 16, 2017 · The following code plots a figure. But in such cases it might be more useful to have the legend background become semi- or fully-transparent, such that the underlying plot lines would appear beneath the legend: Matlab chart with a semi-transparent legend (click for details) But in the legend, the width of the line before the plot (marker line) is connected to the linewidth of the plot itself. By default, the legend annotates the current axes. Mar 25, 2021 · 6. I've gotten very creative with plots using text. You can then use the 'copyobj' function to copy the legend and its axis. By changing the width and height, you can change its size (and get the box to wrap around it precisely). If we look at it just after the creation of the legend we get: [hleg,att] = legend( 'show' ); Input data, specified as a numeric vector or numeric matrix. I have a GUI with 6 axes in it. A few years ago, one new release failed to import my preferences and that required about an extra half hour of work to get those imported, however the others have gone seamlessly. The colored/patterned marker to the left of each legend label. You can just add any text to any point of plot in this way: txt1 = 'some information'; text(x1,y1,txt1) where x1, y1 - coordinates. Add a legend to the upper plot by specifying ax1 as the first input argument to legend. For MATLAB versions prior to MATLAB R2019b or code that uses 'subplot' instead of 'tiledlayout', there is no straight-forward way to create an overall legend. I have rarely had problems with MATLAB interim updates, and upgrades to new releases. b = boxchart( ___) returns BoxChart objects. , loc="upper right" places the legend in the upper right corner of the bounding box, which by default extents from (0, 0) to (1, 1) in axes coordinates (or in bounding box notation (x0, y0, width, height) = (0, 0, 1, 1)). If you do not specify a label, then the legend uses a label of the form 'dataN'. Apr 7, 2017 · 3. hp = plot (x_data,plot 1,'color', [0. Create a legend and assign the Legend object to the variable 'lgd'. Change the color of the box outline in the x -axis direction by setting the XColor property of the axes. legend() has some built-in backwards compatibility that is only used when you use at least two outputs on the legend() call. 13],'LineWidth',0. You can return the Legend object as an output argument from the legend function, such as lgd = legend. lh = legend ('BlankLegend'); lh. In the first set of axes, plot the box plots for the brand. MATLAB displays only one legend per axes. The fontsize alone is a piece of cake. legend(frameon=False) leg = axes. To position the legend within the grid of a tiled chart layout, set the Tile property on the TiledChartLayoutOptions object. In that context, the text call is likely your best option. 69,0. 1x4 position vector or one of the following strings: 'North' inside plot box near top. Mar 11, 2015 · We can of course move the legend box around (programmatically or by interactive dragging). Legend properties control the appearance and behavior of a Legend object. Learn more about plotting MATLAB Feb 13, 2017 · The legend box is effectively just a small axes object, so the position units are normalized relative to the axes box. TextColor; lgd. I found a solution of the linewidth problem. The second value returned by legend() is the handles to the objects that went up to make the legend, including the text objects. I want to use legend function in one of the axes but without the box visible i. Nov 3, 2017 · Hello, I have created two legends in one figure but I dont know how to set the second legend also outside the figure like the another one (screenshot). tiledlayout(2,1) y1 = rand(3); Dec 28, 2017 · Plot legend below the plot. the curves are added alternately. Sep 26, 2018 · Link. Now i am creating plots with a loop, as below: legendLables=[]; for iM= Jan 2, 2021 · Learn more about yyaxis, legend, axes MATLAB. I resize the figure window to fit one column but the legend box does not change with it. Enlazar. legend positions the legend based on a variety of factors, such as what objects the legend obscures. ItemTokenSize = box_size; Jan 12, 2017 · grid on; set (gca, 'Color', [. LOC may be either a. legend() with only one output uses different internal data structures that do not create line or patch objects. x = 0:0. The height is the 4th value of the Position parameter. Then, plot empty lines according to the final legend output you desire. legend with no arguments refreshes all the legends in the current figure. I spend one day to try to solve this problem. Jan 12, 2017 · The legend has been changed so that by default it updates when data is added to or removed from a plot automatically. If you have a different version, the command to turn the legend box off may be different. set_linewidth(0. => it should work by sepcifying a 4 element array along with the Jan 23, 2017 · 1. 'South' inside bottom. Call the nexttile function to create the axes objects ax1 and ax2. % H has one column per box, consisting of the handles for the various % parts of the box. Basically, I want to make a legend for each type of rectangle. . Asking for help, clarification, or responding to other answers. For previous versions of Matlab t Nov 19, 2018 · I want to do this by adding a second legend (in an own "legend-window") to the figure As far as I know, you can only have one legend-window for one set of axes in MATLAB, so the idea is: add a second (exatly equal) set of axes to the figure Remarks. This is basically Mike Garrity's solution with a for-loop to make it more suitable for larger number of data sets: Theme. If we look at it just after the creation of the legend we get: [hleg,att] = legend( 'show' ); Dec 31, 2021 · Resizing Legend Box while Exporting in MATLAB Learn more about matlab, figure, legend MATLAB You can change the font size for a MATLAB legend by setting the 'FontSize' property of the Legend object. If x is a vector, boxplot plots one box. Sep 30, 2015 · The Matlab help for legend clearly states: Theme. Here I set the height to 10. Starting in 2020b, Legend and Colorbar have a Layout property that gives you more control of positioning them in a TiledChartLayout. set_edgecolor('b') How to remove only the border of the box of the legend? leg = plt. tl = tiledlayout ('flow'); Nov 29, 2016 · I am using the 2016 version of MATLAB (R2016a). The transparency setting you found on stackoverflow is specifically referring to the transparency of the green color patches displayed within the legend shown. 93,0. This property is useful when the legend is in a tiled chart layout. The set() then affects all of those text objects. It's use is. x = boxplot (rand (100,6), 'Colors',colors); % findall is used to find all the graphics objects with tag "box", i. Apr 26, 2024 · I don't see any options to make the legend background transparent, but you can change the background color using the 'Color' argument. Now I want to change the color of second line of legend to red without changing anything in data. Use the following This property is useful when the legend is in a tiled chart layout. 25); Recalling the legend function does not reset legend properties, such as the location or orientation. xlabel ('Wall thickness [mm]') % x-axis label. location, LOC, with respect to the axes. tl = tiledlayout ('flow'); nexttile. Perform a two-way ANOVA to test the null hypothesis that the popcorn yield is not affected by the brand of popcorn or type of popper. legend associates strings with the objects in the axes in the same order that they are listed in the axes Children property. May 28, 2023 · This function offers a more flexible version of the legend command. I can’t run your code, but that should work (in R2016a). hLegend = legend (findall (gca,'Tag','Box'), {'Group A','Group B','Group C'}); Depending on the number of variables that you have, you might not obtain the right color for each legend element. If the BoxMedianLineColorMode property of the BoxChart object is also set to 'auto' , then MATLAB updates the box median line color with the value of the box edge color. Use 'DisplayName' to properly name the lines on the final legend output. leg1=legend () set (leg1,'boxoff') 2. I think the solution is in this line (I found it in another community) but I dont no how to change it: a=axes('position',get(gca,'position'),'visible','off'); Thanks! Call the nexttile function to create the axes objects ax1 and ax2. I also tried to reduce the font but this doesn . Add Custom Legends Using the legend() Function in MATLAB. Feb 13, 2017 · The legend box is effectively just a small axes object, so the position units are normalized relative to the axes box. For example, plot four lines. To reduce the legend lines length and adjust the legend box, you can modify the following lines of code: Add the `'AutoUpdate','off'` property to the `legend` function to prevent it from automatically updating when the plot changes. subplots() for i in range(1, 6): Learn more about legend, aspect ratio As the title suggests, the ratio of the plot changes when putting a legend outside. col = rand (4,3); This property is useful when the legend is in a tiled chart layout. Jan 10, 2019 · There is no particular attribute to shrink legend without changing font-size. So already this code works for legends with multiple entries. Nov 19, 2018 · I want to do this by adding a second legend (in an own "legend-window") to the figure As far as I know, you can only have one legend-window for one set of axes in MATLAB, so the idea is: add a second (exatly equal) set of axes to the figure This property is useful when the legend is in a tiled chart layout. tiledlayout(2,1) y1 = rand(3); Jun 4, 2017 · You could add another subplot to act as an empty region to hold only the legend, with the axes visibility turned off and nan values for the 'YData' of the plotted lines, so they don't render: Sep 12, 2023 · Navigating the vast capabilities of MATLAB can be challenging, but legends play a pivotal role in enhancing data visualization. answered Jan 23, 2017 at 10:50. In most cases, when you use name-value pairs, you must specify the labels in a cell array, such as legend({'label1','label2'},'FontSize',14). legend associates strings with the objects in the Axes in the same order that they are listed in the Axes Children property. If x is a matrix, boxplot plots one box for each column of x. I have a figure with three lines which have different colours. Learn more about legend, text, plots MATLAB May 13, 2021 · Then add the legend for the first property by only using the lines that are representative of the first property. g. h = findobj ('type', 'axes'); % Find all sets of axes. You need to use the handle to the legend which you create when you call legend (). A workaround is to create an extra subplot, or an additional row or column, and use that space for the legend. x = np. create multiple legends for the same axis. 7); Setting the value to 0 will make it fully transparent and a value 1 of will make it fully opaque which is the default behavior. By the way function text function has a lot of different properties (colors, font size, alignment etc. 1. y2 = cos(2*x); plot(x,y2) legend( 'cos(x)', 'cos(2x)') If you add or delete a data series from the axes, the legend updates accordingly. xf pq qd my su op qu sz wk wb