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Correlations, how do I graph one?
I have data of my weekly pay and hours worked. I want to show the
correlation between the two. When I do a linear regression it doesn't work, and I don't understand why the correl function is for the range of each data set. For example: 5/1 $100 5 hours 5/15 $200 7 hours 5/30 $50 3 hours etc. I have the money and hours graphed on a charted over time, on two separate axis. now how do I show the correlation between them on this chart? I tried to use the CORREL function to do somthing like this : CORREL (money1:money3,hours1:hours3) but the amount comes out as a really small decimal, like .04. Even if I switch it around, and do hours,money I get the same amount. I am thinking that I should not have the hours charted on the second axis, but don't understand how I get the correct correlation percentage charted. Please help! Thanks! |
#2
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Correlations, how do I graph one?
Did you make an Line (incorrect) or XY (correct) chart?
-- Bernard V Liengme www.stfx.ca/people/bliengme remove caps from email "misscrf" wrote in message ups.com... I have data of my weekly pay and hours worked. I want to show the correlation between the two. When I do a linear regression it doesn't work, and I don't understand why the correl function is for the range of each data set. For example: 5/1 $100 5 hours 5/15 $200 7 hours 5/30 $50 3 hours etc. I have the money and hours graphed on a charted over time, on two separate axis. now how do I show the correlation between them on this chart? I tried to use the CORREL function to do somthing like this : CORREL (money1:money3,hours1:hours3) but the amount comes out as a really small decimal, like .04. Even if I switch it around, and do hours,money I get the same amount. I am thinking that I should not have the hours charted on the second axis, but don't understand how I get the correct correlation percentage charted. Please help! Thanks! |
#3
Posted to microsoft.public.excel.charting
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Correlations, how do I graph one?
misscrf -
It would help if you describe a little bit more than "it doesn't work." If you are interested in the correlation between money and hours, construct an XY (Scatter) chart using that data. The correlation is a single-number summary measure of the linear relationship between two related sets of numbers. Since it is a single number, it is not usually plotted. CORREL({100,200,50},{5,7,3}) is approximately 0.98. - Mike http://www.mikemiddleton.com "misscrf" wrote in message ups.com... I have data of my weekly pay and hours worked. I want to show the correlation between the two. When I do a linear regression it doesn't work, and I don't understand why the correl function is for the range of each data set. For example: 5/1 $100 5 hours 5/15 $200 7 hours 5/30 $50 3 hours etc. I have the money and hours graphed on a charted over time, on two separate axis. now how do I show the correlation between them on this chart? I tried to use the CORREL function to do somthing like this : CORREL (money1:money3,hours1:hours3) but the amount comes out as a really small decimal, like .04. Even if I switch it around, and do hours,money I get the same amount. I am thinking that I should not have the hours charted on the second axis, but don't understand how I get the correct correlation percentage charted. Please help! Thanks! |
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