Hi All,
I want to draw a plot which can help me compare two variables , the issue is I have around 1 million rows due to which I am not able to use Line plot.
Code used
proc gplot data=Data_name;
plot (y1 y2)*xavr / overlay legend=legend1
haxis=axis1 vaxis=axis2;
run;
quit;
If you are trying to identify where the variables are most different, a scatter plot of y1 vs y2 would do it, since they are evaluated at the same time points. Use semitransparent markers to reduce overplotting.
proc sgplot data=Data_name;
scatter x=y1 y=y2 / transparency=0.8;
run;
If you need to visualize the XVAR information, you can use the COLORRESPONSE=XVAR option.
Is plotting 1m records the best way to cmopare some data? I wouldn't think so. Think of a piece of paper, then put 1m dots on that piece of paper, would you fit them all on, no, not even close. I would think there are better methods, e.g. distinct lists of values, proc compare by variables, excluding the sam values etc.
If you are trying to identify where the variables are most different, a scatter plot of y1 vs y2 would do it, since they are evaluated at the same time points. Use semitransparent markers to reduce overplotting.
proc sgplot data=Data_name;
scatter x=y1 y=y2 / transparency=0.8;
run;
If you need to visualize the XVAR information, you can use the COLORRESPONSE=XVAR option.
Rick's approach might also be interesting to see as a heatmap:
proc sgplot data=bigdata;
heatmap x=y1 y=y2;
run;
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