Re: st: Making a bar graph from the row of a matrix

[Mauricio Esteban Cuak <cuak2000@gmail.com>]

Hi Nick, thanks for the answer.
The following code plots the graph I wanted and may be useful for other people.
It doesn't look very nice however.
As suggested by Nick, I moved the names into a variable (slightly
tricky) and the values into another.


/* Begin CODE */

clear all

sysuse auto.dta

qui reg price mpg trunk weight

matrix test = e(V)


matrix rowtest = test["weight", 1...]

/* rowtest is the row I want to graph     */


local names : colnames rowtest

local n_names : word count `names'


gen var_colnames = ""

forval i=1/`n_names' {

local this_name = "`:word `i' of `names''"

replace var_colnames = "`this_name'" if _n == `i'

}

matrix trans_rowtest = rowtest'

svmat trans_rowtest

graph bar trans_rowtest1, over(var_colnames)


**************************************



2013/4/7 Mauricio Esteban Cuak <cuak2000@gmail.com>
>
> Hi Nick, thanks for the answer.
> The following code plots the graph I wanted and may be useful for other people.
> It doesn't look very nice however.
> As suggested by Nick, I moved the names into a variable (slightly tricky) and the values into another.
>
>
> **************BEGIN CODE********************
>
> clear all
>
> sysuse auto.dta
>
> qui reg price mpg trunk weight
>
> matrix test = e(V)
>
>
> matrix rowtest = test["weight", 1...]
>
> /* rowtest is the row I want to graph     */
>
>
> local names : colnames rowtest
>
> local n_names : word count `names'
>
>
> gen var_colnames = ""
>
> forval i=1/`n_names' {
>
> local this_name = "`:word `i' of `names''"
>
> replace var_colnames = "`this_name'" if _n == `i'
>
> }
>
> matrix trans_rowtest = rowtest'
>
> svmat trans_rowtest
>
> graph bar trans_rowtest1, over(var_colnames)
>
>
>
>
>
>
> 2013/4/3 Nick Cox <njcoxstata@gmail.com>
>>
>> The easiest way to do this is probably to copy values from your matrix
>> to a variable and then call up -twoway bar-.
>>
>> Nick
>> *
>> *   For searches and help try:
>> *   http://www.stata.com/help.cgi?search
>> *   http://www.stata.com/support/faqs/resources/statalist-faq/
>> *   http://www.ats.ucla.edu/stat/stata/
>
>
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/