Update

matlab_exercises.mmd

@@ -1,10 +1,8 @@
-{{../markdown_header.txt}}
-
 # Matlab Exercises
 
 Try the exercises at [Quantitative Economics](www.http://quant-econ.net).
 
-Some of the code for these exercises is in the `examples` folder.
+Some of the code for these exercises is in the `examples` folder on `github`.
 
 ## Read the Matlab documentation on the following subjects:
 
@@ -32,8 +30,8 @@ Some of the code for these exercises is in the `examples` folder.
 
 	Output: mean and standard deviation for each column
 
-	My solution: `stats_lh.std_w`
-
+	My solution: `statsLH.std_w`
+		
 1. Compute the cdf for weighted data.
 
 	Input: data and weights
@@ -78,9 +76,7 @@ Steps:
 
 Along the way, plot the value functions to show how they converge to the true one. Like this:
 
-![GrowthValueIter][]
-
-[GrowthValueIter]: figures/growth_value_iter.png "Value function iteration" height=400px
+![GrowthValueIter](figures/growth_value_iter.png "Value function iteration")
 
 See [QuantEcon](http://quant-econ.net/jl/dp_intro.html).
 

matlab_functions.mmd

@@ -27,7 +27,7 @@ Now try `open zeros`. This opens `zeros.m`.
 
 * this means: `zeros` is not written in Matlab (it's truly built-in)
 
-## The Matlab Path [mpath] ##
+## The Matlab Path <a name="mpath"></a> ##
 
 Matlab commands are stored in text files with the extension ''m''. 
 
@@ -86,19 +86,19 @@ There are 2 ways of ensuring this:
 	For this to work, the parent dir of `+plot_821`  must be on the `path`.	
 
 
-##Example of a Function
+## Example of a Function
 
 Imagine we want to compute the sum of 3 variables.
 
 Type the following code in a text editor: 
 
-````matlab
+```matlab
 function xSum = sum3(x1, x2, x3);
 % This function sums 3 variables
 	sum1 = x1 + x2;
 	xSum = sum1 + x3;
 end
-````
+```
 
 Save it as `sum3.m` in a directory Matlab knows to find.
 
@@ -125,13 +125,13 @@ Matlab complains that variable `sum1` does not exist.
 
 `sum1` was visible inside of sum3.m, but not outside of it.
 
-##More on Private Variables
+## More on Private Variables
 
-Variables inside of sum3.m are also not visible in functions called from within sum3.m
+Variables inside of `sum3.m` are also not visible in functions called from within `sum3.m`.
 
 **Example**
 
-Modify sum3.m to read: 
+Modify `sum3.m` to read: 
 
 ```matlab
 	function xSum = sum3(x1, x2, x3);
@@ -149,15 +149,15 @@ Then create the function:
 	end
 ```
 
-Running sum3.m results in an error: sum1 is not found.
+Running `sum3.m` results in an error: sum1 is not found.
 
-##Global Variables
+## Global Variables
 
-To make a variable visible from anywhere, define it as a global (in sum3.m and sum3sub.m): 
+To make a variable visible from anywhere, define it as a `global` (in `sum3.m` and `sum3sub.m`): 
 
 	global sum1;
 
-Now running sum3.m does not yield an error message.
+Now running `sum3.m` does not yield an error message.
 
 >Remark: Avoid globals where possible. 
 
@@ -177,9 +177,9 @@ Still, this can be very inefficient. If you pass a gigantic array to a function
 
 There is no way of passing by reference.
 
-# Examples
+## Examples
 
-## Example: Cobb-Douglas production function
+### Example: Cobb-Douglas production function
 
 This is a general purpose [Cobb-Douglas function](https://github.com/hendri54/shared/blob/master/%2BeconLH/cobb_douglas.m)
 
@@ -193,7 +193,7 @@ Notable features:
 
 * self-test code governed by debugging switch `dbg`
 
-##Example: Finding the Zero of a Function
+### Example: Finding the Zero of a Function
 
 Task: Find the solution to the equation \\(f(x)=\ln(x)-5=0 \\).
 
@@ -213,7 +213,7 @@ Use the built-in function [`fzero`](http://www.mathworks.com/help/matlab/ref/fze
 	7.3891
 ```
 
-#Example: Two period household
+## Example: Two period household
 
 Household solves \\(\max u\left(c,g\right)\\)
 
@@ -227,15 +227,15 @@ that solve 2 budget constraints and Euler equation
 
 Assume \\(u\left(c,g\right)=\frac{c^{1-\sigma}}{1-\sigma}+\beta\frac{g^{1-\sigma}}{1-\sigma} \\)
 
-###Pseudo code
+### Pseudo code
 
 This is not a trivial program to write. So we break it down into trivial steps.
 
 See [Tips on programming](programming.html)
 
 We design top-down.
 
-####Level 1:
+#### Level 1:
 
 Task: Find optimal \\(c\\).
 
@@ -245,7 +245,7 @@ Task: Find optimal \\(c\\).
 
 > Note: Usually one would not restrict \\(c\\) to lie on a grid.
 
-####Level 2:
+#### Level 2:
 
 Task: Calculate deviation from Euler equation.
 
@@ -254,14 +254,14 @@ Given: guess for \\(c\\), parameter values
 1. Use budget constraints to calculate \\(s,g\\)
 2. Return deviation: \\( dev=u_{c}-u_{g}R \\)
 
-####Level 3:
+#### Level 3:
 
 Utility function.
 
 * Return \\(u_{c} \\) and \\(u_{g} \\)
 * for given \\(c,g\\) and parameters.
 
-###Code
+### Code
 
 We write the code bottom up.
 

matlab_intro.mmd

@@ -1,5 +1,7 @@
 # Matlab: Introduction #
 
+[link](matlab_exercises.html#growth-model)
+
 ## Installation and Configuration
 
 Instructions for installation from [ITS](http://software.sites.unc.edu/software/)

matlab_oddities.mmd

@@ -1,42 +1,40 @@
-{{../markdown_header.txt}}
-
 # Matlab Oddities and Pitfalls
 
-### Matrix Indexing
+## Matrix Indexing
 
 Matlab is perfectly fine with invalid matrix indices.
 
 The following code should produce a syntax error:
 
-	```matlab
+```matlab
 	x =
 	     1     2     3
 	     4     5     6
 
 	>> x(5)
 	ans =
 	     3
-	```
+```
 
 This is a very common source of bugs.
 
-### Load and Save
+## Load and Save
 
 The `load` command is insane. It writes variables to the workspace that cannot be seen in the code. Always use load as a function as in `m = load(filename)`.
 
 Even then `load` is insane. To retrieve the contents of `m`  you need to know its name. Example:
 
-	```matlab
+```matlab
 	x = 10;
 	save('test.mat', 'x');
 	m = load('test.mat');
 	disp(m.x);
 	10
-	```
+```
 
 It's best to write a wrapper for `load` and `save` so that `load2('test.mat')` returns `10` instead of `m`.
 
-### Numeric Precision
+## Numeric Precision
 
 Matlab "downgrades" numeric precision to the lowest common denominator in calculations.
 
@@ -52,6 +50,6 @@ uint8
 
 One solution: convert everything to `double` as soon as you load it.
 
-Always check that intermediate results are still `double` (using `validateattributes`).
+Always check that intermediate results are still `double` (using [validateattributes](http://www.mathworks.com/help/matlab/ref/validateattributes.html)).
 
 ---------

matlab_plots.mmd

@@ -1,12 +1,10 @@
-{{../markdown_header.txt}}
-
 # Plotting in Matlab
 
 Matlab contains a large number of functions that plot data in 2D and 3D.
 
 The most important is `plot`.
 
-### Example: Plotting a white noise process
+## Example: Plotting a white noise process
 
 ````matlab
 % Seed the random number generator. For reproducability
@@ -26,12 +24,10 @@ ylabel('White noise')
 
 The result: a poorly formatted figure (saved here by hand as `png`):
 
-![figWhiteNoise][]
-
-[figWhiteNoise]: figures/white_noise.png  "White noise"  height=400px
+![figWhiteNoise](figures/white_noise.png  "White noise")
 
 
-# Saving Plots #
+## Saving Plots #
 
 Now for the bad news: Generating reasonably formatted plots in Matlab is surprisingly hard.