Firstly, input the graph title and horizontal and vertical axis labels with minimum and maximum range.
Select the data type and enter the data labels, values, or range.
Choose the number of lines that need to be displayed on a line graph. Enter the data values with a space separator, line label, and color for each line.
Check if you want to show points on a chart. Also, enter the line width if needed. By default, it's set to 3.
Select the legend position in a graph and check the curved line checkbox if needed.
Now press the 'Draw' button to get the final line graph with given values.
Lastly, save the chart in PNG, SVG, or PDF file.
To save a graph in PDF, press the 'Print' button and select 'Save as PDF'.
Usage Guide:
Enter the data labels and values with a space separator. Such as 120 150 188 ...
In data labels, use the underscore '_' sign between two words for space. Example: 'Label_1' will be displayed as 'Label 1'.
To place an underscore between two words, use the 2 underscores '__'. Example: 'Label__1' will be displayed as 'Label_1'.