A line graph is a type of chart which displays information as a series of data points called markers connected by straight line segments. It shows how something changes in value (as time goes by, or as something else happens).
Questions tagged [linegraph]
558 questions
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Percentage graph from absolute values
I have the following data:
Date A B C
2012/07 7 6 0
2012/08 9 4 0
2012/09 9 3 0
2012/10 14 2 1
2012/11 9 16 0
2012/12 0 14 0
2013/01 7 9 1
2013/02 8 13 1
2013/03 16 62 16
2013/04 7 12 4
2013/05 10 11 …

Waldir Leoncio
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invalid context 0x0 for drawing line graph
I have to draw a line .I use the below code.My actual need is to draw lines from points that are present in an NSMutableArray
- (void)drawLineGraph:(NSMutableArray *)lineGraphPoints
{
CGContextRef context = UIGraphicsGetCurrentContext();
…

Aswathy Bose
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Highcharts line graph, filling xAxis from JSON
I'm trying to get a line graph from Highcharts. My JSON looks like
[{"Monat":"April","d07geb":1.5},{"Monat":"June","d07geb":0.5},{"Monat":"March","d07geb":0.5},{"Monat":"May","d07geb":0.2}]
Monat means month, the value i'm trying to get on the…

user2476011
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How to plot two lines in one graph in MATLAB?
suppose i have X={0,5.4,6.18,6.81,6.85,6.95,6.96,7.20,7.51} and
Y={0,4.84,5.52,6.00,6.12,6.21,6.23,6.34,6.61}.please help me to plot two lines
with these points in one single graph using MATLAB.Thanks

ranadhir
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Axis formatting and grid lines in R graph
I have a data set like the following one:
data<-data.frame(x=c(50,100,250,400),y1=c(0.74,0.75,0.82,0.79),y2=c(0.81,0.83,0.87,0.88))
I generate the plot like this: …

user785099
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connecting lines between means of factors in ggplot2
I was trying to create a simple line graph of means and interactions. I have a DV (reading times) on the y-axis, one factor (Length) on the x-axis, and another as a grouping variable (position).
The syntax I used is below. The data plotted as…

user2112401
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Creating Coreplot line graph with x and y axes in iOS
I have looked over a lot of sample tutorials of Core plot but having issues in most of them. If Can anyone provide a working tutorial for creating line graph with data X=(Sep,Oct,Nov,Dec) and Y=(20,40,80,30) with X & Y axes also using Core Plot…

Shaunak
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LineAndMarker only see markers, but no lines?
I am trying to plot data represented by a bunch of dots connected with lines. However, when I do the plot, I can only see dots being displayed, but I cannot see any lines. I don't know what the problems are. Here is my code, and this is how…

Nick Tsui
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LineAndMarker has DataSource?
I am using DynamicDataDisplay to plot my real-time signal. I would like to have both markers and lines showing up on my chart, so I think I should use LineAndMarker; When x-y data are updated, my logic is to only update the date…

Nick Tsui
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OpenGL Android Plotting a real time graph
Can any one Point me in Best way to plot a real time graph using OpenGL with some exampels

deepu
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Google charts API Y is axis scaling data
I am using the following data default data:
37.705 54.098 55.738 75.41 52.459 73.77 68.852 55.738
//chart.googleapis.com/chart
?chxs=0,676767,11.5,0,l,676767
&chxt=y
&chs=300x225
&cht=lc
&chco=3D7930
&chd=s:Xhiugtqi
…

mmann1123
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iPhone Pixel Coordinate Issue
I am trying to make a line graph using the drawRect method but I have came across a major problem. The 0 point on the iPhone screen is in the top left corner. Is there any way to either relocate the 0,0 point or change the coordinates input to where…

Ali Rahman
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Clip the Path drawing in Quartz 2D iOS
I am trying to draw a line graphs. I am able to draw the line graph but not able restrict the drawing area.
I want to draw the line graph from start to end position. But its coming beyond the drawing area. Could you please help me how to clip the…

Srivathsa
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How do I build a canvas line graph between 2 varying dates?
I'm trying to use canvas to build a line graph between 2 date points. I need the date measurements along the bottom of the graph to change based on the start and end date data, which can vary widely between what information is grabbed by the…

Brett
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D3 LineGraph Circles Remove Overlap && Sort dates
http://www.fabieno.com/conanbatt/index.html
Circles are overlapping, and because they have tooltips. This is a bit of a pain. How can I modify this to stop the overlap?
Also, how do I format the dates in to a way I would prefer to see them? For…

Fabor
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