SLope is a function of how much the dependent variable Y changes for every unit increase in the value of the independent variable X. So the line may be negative or positive (negative if Y and X are inversely correlated). Knowing that, imagine that the slope of the line you are trying to calculate is one side of a triangle, the other two sides being X and Y axis. Hence the slope is a measurement of how much the Y side is to the X side. If you know slope, it is easy to calculate X and Y and also tells the equation whether X and Y values are positively or negatively correlated. For. e.g. for every unit increase in concentration of a salt, there is a proportional increase in absorbance (positive correlation). But take price of a commodity. As production of a product increases, price of the product comes down (inverse and negative slope). Check out more on slope on wikipedia. There is more to slope adn linear regression than can be explained in one email. Talk to a biostatistician and he will be glad to help you. Every institute has biostatisticians available. You got to ask. Jay
________________________________________ From: [email protected] [[email protected]] On Behalf Of sudheer babu [[email protected]] Sent: Friday, March 18, 2011 4:19 PM To: [email protected] Subject: Can anyone please tell about slope function Hi all Can anyone please tell what is the exact function and use of SLOPE , which calculates by y=mx+c formula. I found that slope defines the measurement of line, but my doubt is that I have done protein estimation by bradford method. Then I plotted a straight line graph based on results. Here what is the use of calculating slope??? May be I am asking trivial question, I am kindergarten to mathematics, can anyone please explain me. Thank you in advance Cheers -- Sudheer Babu.S ITC student Institute of Biochemistry Biological Research Center Szeged,Hungary. _______________________________________________ Methods mailing list [email protected] http://www.bio.net/biomail/listinfo/methods This email message may contain legally privileged and/or confidential information. If you are not the intended recipient(s), or the employee or agent responsible for the delivery of this message to the intended recipient(s), you are hereby notified that any disclosure, copying, distribution, or use of this email message is prohibited. If you have received this message in error, please notify the sender immediately by e-mail and delete this email message from your computer. Thank you. _______________________________________________ Methods mailing list [email protected] http://www.bio.net/biomail/listinfo/methods
