一般地,如果在一个变化过程中,有两个变量,例如x和y,对于x的每一个值,y都有惟一的值与之对应,我们就说x是自变量(independent variable),y是因变量(dependent variable),此时也称y是x的函数(function).表示函数关系的方法有三种:解析法,列表法,图像法。
自变数与依变数：对具有统计关系的两个变数，可分别用变数符号Y、X表示。根据两个变数的作用特点，统计关系又分为因果关系和相关关系。两个变数间的关系若具有原因和反映（结果）的性质，则称这两个变数间存在因果关系，并定义原因变数为自变数（independent variable）,X表示；定义结果变数为依变数（depen...
解析 》x=0:pi/10:2*pi;》y1=sin(x);》y2=cos(x);》plot(x,y1,x,y2) ;》grid on》xlabel(‘Independent Variable X’);》ylabel(‘Dependent Variable Y1&Y2’);》title(‘Sine and Cosine Curve’)》text(1.5,0.3,’cos(x)’);》axis([0 2*pi -0.9 0.9]) ...
Independant variable has outstanding explanatory power to dependant variable.显著的解释力: 就是因变量随着自变量的变化而变化，所以自变量对因变量有解释作用。
学统计的人会不厌其烦告诉你， independent variable， dependent varaible, 不能换，不能换，不能换...
2.4 被预测的变量叫做:因变量(dependent variable), y, 输出(output) 2.5 被用来进行预测的变量叫做: 自变量(independent variable), x, 输入(input) 3. 简单线性回归介绍 3.1 简单线性回归包含一个自变量(x)和一个因变量(y) 3.2 以上两个变量的关系用一条直线来模拟 ...
The statement “The value of y depends on the value of x” can be represented by a mathematical model where y is the___. A. independent variable B. dependent variable C. control variable D. extraneous variable 相关知识点: 试题来源: 解析 B。在“y 的值取决于 x 的值”这句话中,y 是...
In a simple regression analysis (where Y is a dependent and X an independent variable), if the Y intercept is positive, thenthere is a positive correlation between X and Yif X is increased, Y must also increaseif Y is increased, X must also increaseNone of these alternatives is correct....
Question: which is independent x variable and which is dependent y variable? which is independent x variable and which is dependent y variable? There are 2 steps to solve this one.
Multivariable regression analysis of dependent variable (Y) on independent variable (X).Hemamalini, KethaRavinder, J. SinghStefan, K. GrebeEric, J. BergstralhAndrew, D. RuleJohn, C. LieskeRajiv, Kumar