The legend makes the connection between the plot object a1 and the string m1, and uses this to generate the legend. Displaying legend for multiple plots matlab answers. Legend for multiple plots matlab answers matlab central. This function will use clickablelegend if it can find it in your matlab path, otherwise it will revert back to. Is there some limit on this, or am i doing something wrong. Christoforos kanavakis on 23 mar 2018 accepted answer. I have lines on a plot, each line corresponding to a set of data from a text file. Matlabs builtin legend command suffices for most cases when there are few objects to differentiate. Basically you need to get the handles for whichever objects you want in your legend, this can by done multiple ways and what i used is definitely not the best, just easy this time. This is because the first plot command is plotting 10 lines at once.
An example of putting multiple curves on a plot here are the matlab commands to create a symbol plot with the data generated by adding noise to a known function. How to add a legend to a graph with multiple lines. Unlike the plot function, line adds the line to the current axes without deleting other graphics objects or resetting axes properties. No, sprintf does not need to be after my code, but calling legend needs to be, because legend takes the current color order into account when it. How to display only one legend for a figure with multiple. Adding legend in a plot genereted by a loop matlab. When you specify namevalue pair arguments, you must specify the legend labels using a cell array. Multiple legends with colors matlab answers matlab central. Is it possible to specify only a subset of the lines to be reported in the legend and relative text. Follow 5 519 views last 30 days bob li on 16 jan 2012. Imagine if you have lines that are plotted only to identify areas in the plot space and you dont wnat these lines in the legend. Plot with multiple yaxes file exchange matlab central.
Optionally, specify the legend location using one of the eight cardinal or intercardinal directions, in this case, southwest. I need to plot several groups of lines each of about 1015 lines and display legend, but not for each of the lines seperately but only for each group. New line in legend does not work anymore in matlab 2017b. Ive looked online and found the following code that seems to work, although with a few errors. Then, plot four lines, create a legend, and assign the legend object to a variable. Specify the legend descriptions in the order that you plot the lines. If there are multiple lines in the plot, hp is a vector of multiple handles. How do i make a figure legend multiple lines in matlab 7. Help with plotting multiple line complete with legends. Set the fontsize and textcolor properties using namevalue pairs. Create primitive line matlab line mathworks benelux.
The volume is plotted in a subplot below the other data series. It can be displayed properly if and only if i could split legend into multiple columns. All you must do in your loop is devise a way to generate ai and mi for a general integer i. Gives you the legend is showing average price as being a black line instead of blue. Create legend and assign the legend object to the variable lgd. The aim is to increase the thickness of the lines shown in the legend. In both orientation, legend gets too big to display.
This example shows how to continue a statement to the next line using ellipsis. But, i seem to have trouble displaying the legend signal names when displaying more than 8 signals axes at the moment. Furthermore, the legend text overruns the bounding box that is drawn for the legend. Follow 1,165 views last 30 days mathworks support team on jan 2011. The graphic objects curves, text, axis, etc in matlab plots all have properties such as color, linewidth, linestyle, markersize, etc. Follow 391 views last 30 days tim mottram on 7 mar 2012. You can see there are multiple entries and i suspect that is because the variables returned by the voronoi function are matrices and not vectors like the other variables. If i just orientate it horizontally it simply wont fit the screen and i dont want to set it at neither of the sides as i would waste space. Another way is to track the names of lines using their displayname property, and then rebuild the legend based on the current state of the plot when you add something new. For example, if your plot has two lines, but only one of them has a legend entry and that should stay this way, then adding a third line with a legend entry can be difficult.
Learn more about legend, newline, mutiple lines, matlab 2017b, plotting matlab. I dont have matlab open now to test it but i think there must be a way using a combination of sprintfnum2str. How to plot multiple lines in a graph learn more about graph, plot, layers, i, j, k, matrix. To split legend to multiple lines, use ascii character 10 for new line, for example. Excluding a line from plot legend practical matlab. Now you can label the colors and the linestyles as wanted that reflect the actual plot data but youve got a given number and can associate the style as desired for the legend at the cost of just a two extra data points each for the number of lines want. You also can create a legend with multiple columns or create a legend for a subset of the plotted data. Click items in the legend to show or hide the associated chart.
Like in first column i show 10 curves name and in second column i show next 10. Heres a proofofconcept of legend text wrapping, using some undocumented outputs of legend and the matlab python interface. Legends are a useful way to label data series plotted on a graph. The original function is drawn with a solid line and the function plus noise is plotted with open circles. In both r2011b and r2017a, the interpreter property for the legend object defaults to tex. Legend for multiple lines in matlab plot stack overflow. Legend appearance and behavior matlab mathworks australia. However, when the number of lines plotted, for instance, gets large, columnlegend shines.
I cant waste space outside the subplots and theres not much space inside for the location,best option. Create multicolumn plot legends matlab central blogs. Often you want to exclude a line from a plot legend in matlab. My problem is this, i want to plot 11 lines in different colours on the same graph complete with legends. In r2011b i was able to create legend entries with multiple lines e. Split legend of figure into multiple columns learn more about plot figure, manage long legends matlab. If either x or y, or both are matrices, then line draws multiple lines. It seems this is making the plot function return a column vector of line objects and this is why i am getting the multiple legend entries. Adding legends to multiple lines in an xy plot of data imported from excel sheets in matlab. I will first show the code and then provide a brief explanation of whyhow it works.
Ive tried using both none and latex as the r2017a interpreter but still get the same results. It reverts back to default legend text for more than 8 signals. Adding legends to multiple lines in an xy plot of data imported from. The string for my legend is too long to fit into one line. I would have thought it would throw an error because you are trying to give it more labels than their are plots for all but the last time round the loop. You can pass labels to the legend function in a cell array so you can create that dynamically as e.
You can plot the data in a 2d or 3d view using either a linear or a logarithmic scale. Learn more about multiline legend, newline legend, legend matlab. Legend on a single line not stacked vertically matlab. Multiline legend strings matlab answers matlab central. Set the itemhitfcn property of the legend object to the callback function. I drawed 4 subplots, each contains ten curves and ten horizontal lines. According the official documentation this has been done so that it is possible to call legend repeatedly to update the legend to the latest handles on the axes. Line plots are a useful way to compare sets of data or track changes over time. Displayname is what legend uses to autogenerate the line names when you call the simple legend show form. These examples show how to create a legend and make some common modifications, such as changing the location, setting the font size, and adding a title. It enables one essentially to reshape the default nbyone legend into a pbyq one. I have a figure with several vertically stacked subplots each containing one to four lines. How to add a legend to a graph with multiple lines matlab.
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