How can I create a graph matrix for subset of countries?

[Ana Vasconcelos]

Hello,

I have a dataset with several countries and I want to create a graph matrix (graph matrix weekly_count_cases yearweek) for some of the countries (Portugal, Spain, Italy and France.
Can you help me with the command to create a graph matrix for only a subset of countries?
Thank you in advance

* Example generated by -dataex-. To install: ssc install dataex
clear
input str33 country long country_ float yearweek double weekly_count_cases float list_EU_US
"Afghanistan"    1 3122      0 2
"Afghanistan"    1 3123      0 2
"Afghanistan"    1 3124      0 2
"Afghanistan"    1 3125      0 2
"Afghanistan"    1 3126      0 2
"Afghanistan"    1 3127      0 2
"Afghanistan"    1 3128      1 2
"Afghanistan"    1 3129      3 2
"Afghanistan"    1 3130     12 2
"Afghanistan"    1 3131     18 2
"Afghanistan"    1 3132     80 2
"Afghanistan"    1 3133    185 2
"Afghanistan"    1 3134    308 2
"Afghanistan"    1 3135    389 2
"Afghanistan"    1 3136    535 2
"Afghanistan"    1 3137   1173 2
"Afghanistan"    1 3138   1698 2
"Afghanistan"    1 3139   2262 2
"Afghanistan"    1 3140   3918 2
"Afghanistan"    1 3141   4623 2
"Afghanistan"    1 3142   5137 2
"Afghanistan"    1 3143   4424 2
"Afghanistan"    1 3144   4067 2
"Afghanistan"    1 3145   2134 2
"Afghanistan"    1 3146   1984 2
"Afghanistan"    1 3147   1500 2
"Afghanistan"    1 3148   1024 2
"Afghanistan"    1 3149    788 2
"Afghanistan"    1 3150    447 2
"Afghanistan"    1 3151    344 2
"Afghanistan"    1 3152    542 2
"Afghanistan"    1 3153    403 2
"Afghanistan"    1 3154    163 2
"Afghanistan"    1 3155    236 2
"Afghanistan"    1 3156    318 2
"Afghanistan"    1 3157    328 2
"Afghanistan"    1 3158    183 2
"Afghanistan"    1 3159    114 2
"Afghanistan"    1 3160    458 2
"Afghanistan"    1 3161    401 2
"Afghanistan"    1 3162    633 2
"Afghanistan"    1 3163    800 2
"Afghanistan"    1 3164    606 2
"Afghanistan"    1 3165   1164 2
"Afghanistan"    1 3166   1368 2
"Afghanistan"    1 3167   1073 2
"Afghanistan"    1 3168   1672 2
"Afghanistan"    1 3169   1757 2
"Afghanistan"    1 3170    740 2
"Afghanistan"    1 3171   1994 2
"Africa (total)" 2 3122      0 2
"Africa (total)" 2 3123      0 2
"Africa (total)" 2 3124      0 2
"Africa (total)" 2 3125      0 2
"Africa (total)" 2 3126      1 2
"Africa (total)" 2 3127      0 2
"Africa (total)" 2 3128      5 2
"Africa (total)" 2 3129     69 2
"Africa (total)" 2 3130    248 2
"Africa (total)" 2 3131   1066 2
"Africa (total)" 2 3132   3240 2
"Africa (total)" 2 3133   4546 2
"Africa (total)" 2 3134   5347 2
"Africa (total)" 2 3135   7781 2
"Africa (total)" 2 3136   9445 2
"Africa (total)" 2 3137  12687 2
"Africa (total)" 2 3138  18956 2
"Africa (total)" 2 3139  21425 2
"Africa (total)" 2 3140  27093 2
"Africa (total)" 2 3141  35087 2
"Africa (total)" 2 3142  42602 2
"Africa (total)" 2 3143  53527 2
"Africa (total)" 2 3144  62942 2
"Africa (total)" 2 3145  76663 2
"Africa (total)" 2 3146  95341 2
"Africa (total)" 2 3147 117490 2
"Africa (total)" 2 3148 126318 2
"Africa (total)" 2 3149 125799 2
"Africa (total)" 2 3150 110152 2
"Africa (total)" 2 3151  90991 2
"Africa (total)" 2 3152  70758 2
"Africa (total)" 2 3153  68608 2
"Africa (total)" 2 3154  57998 2
"Africa (total)" 2 3155  53958 2
"Africa (total)" 2 3156  53884 2
"Africa (total)" 2 3157  54413 2
"Africa (total)" 2 3158  52596 2
"Africa (total)" 2 3159  55870 2
"Africa (total)" 2 3160  62404 2
"Africa (total)" 2 3161  67552 2
"Africa (total)" 2 3162  72041 2
"Africa (total)" 2 3163  77845 2
"Africa (total)" 2 3164  86811 2
"Africa (total)" 2 3165  92722 2
"Africa (total)" 2 3166  90435 2
"Africa (total)" 2 3167  97447 2
"Africa (total)" 2 3168  98997 2
"Africa (total)" 2 3169 117838 2
"Africa (total)" 2 3170 130951 2
"Africa (total)" 2 3171 162438 2
end
format %tw yearweek
label values country_ country_
label def country_ 1 "Afghanistan", modify
label def country_ 2 "Africa (total)", modify

[Ken Chui]

Try:

graph matrix weekly_count_cases yearweek if inlist(country, "Portugal", "Spain", "Italy", "France")

[Ana Vasconcelos]

Ken Chui,

Thank you for you message. I would like to create a graph for each country. Can you please help me with the code?
Thank you in advance.

[Mead Over]

Using the by() option on the graph command is probably the easiest way. Try:

scatter weekly_count_cases yearweek if inlist(country, "Portugal", "Spain", "Italy", "France"), by(country)

See the help file at

help graph by()