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leedsichthys
Posts: **1**Member

in Matlab

Hi, folks.

I'm trying to re-code a file from R into MATLAB. I have two questions:

(1) The R file has

# Initialize

n <- ybari <- ss <- vars <- sz <- skews <- rep(0, ngroups)

I'm aware of the general meaning of the initialization, but what is the equivalent MATLAB input of the above for an .m file?

(2) (also from the R file) I'm trying to generate from an N x 2 matrix a vector whose number of entries is the number of groups of the data, and whose entries give the number of members in the group. For example,

2 1

3 1

5 1

7 2

9 2

1 2

The above has 2 groups (groups represented by the second column), group 1 and group 2. Each group has 3 members, so the vector would look like

[3 3]

The R code for the above is

for (i in 1:N) # n = vector giving number in each group

n[group[i]] = n[group[i]] + 1

What is the equivalent MATLAB command?

Thanks!

~John

I'm trying to re-code a file from R into MATLAB. I have two questions:

(1) The R file has

# Initialize

n <- ybari <- ss <- vars <- sz <- skews <- rep(0, ngroups)

I'm aware of the general meaning of the initialization, but what is the equivalent MATLAB input of the above for an .m file?

(2) (also from the R file) I'm trying to generate from an N x 2 matrix a vector whose number of entries is the number of groups of the data, and whose entries give the number of members in the group. For example,

2 1

3 1

5 1

7 2

9 2

1 2

The above has 2 groups (groups represented by the second column), group 1 and group 2. Each group has 3 members, so the vector would look like

[3 3]

The R code for the above is

for (i in 1:N) # n = vector giving number in each group

n[group[i]] = n[group[i]] + 1

What is the equivalent MATLAB command?

Thanks!

~John

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