Calculate pairwise Euclidean distance between users. $[3$ points$]$

Save the pairwise distance square matrix as euclidean$\_$df

$[14]$: $$

$[15]$:

# A $2\mathrm{.}1$

# YOUR CODE HERE

#raise NotImplementedError$()$

$[16]$:

$""$ "Checking, the distance matrix" on

assert euclidean$\_$df $[0,0]=0$

assert euclidean$\_$df $[0,1]>0$

$2\mathrm{.}2$ Calculate pairwise Manhattan distance between users. $[2$ points$]$ Save the pairwise distance square matrix as manhattan$\_$df

$\frac{?}{?}$#$A2\mathrm{.}2$

$\frac{?}{?}$# YOUR CODE HERE

$\frac{?}{?}$#raise NotImplementedError$()$

$[19]$: Checking the distance matrix.$u$

$assertmanhatta{n}_{d}f[00]==0$

$assertmanhatta{n}_{d}f[0,1]euclidea{n}_{d}f[01]$

$2\mathrm{.}3$ Calculate pairwise cosine similarity between users. $[2$ points$]$ Save the pairwise distance square matrix as cosine$\_$df