title: How to fix intercept value of glm
body: <p>This is the example that I work on it : </p>
  
  <pre><code>data2 = data.frame( X = c(0,2,4,6,8,10),
                      Y = c(300,220,210,90,80,10))
  attach(data2)
  model &lt;- glm(log(Y)~X)
  model
  
  Call:  glm(formula = log(Y) ~ X)
  
  Coefficients:
  (Intercept)            X  
       6.0968      -0.2984  
  
  Degrees of Freedom: 5 Total (i.e. Null);  4 Residual
  Null Deviance:      7.742 
  Residual Deviance: 1.509    AIC: 14.74
  </code></pre>
  
  <p>My question is : </p>
  
  <p>There is an option on <code>glm</code> function that allows me to fix intercept Coefficients with value that I want ? and to predict the x value ? </p>
  
  <p>For example : I want that my Curve start With the upper "Y" value ==> I want change the intercept with <code>log(300)</code></p>