search for: gdp_capita

Hi, I'm using RMySQL in order to obtain data from my MySQL server. In my databases sometimes I have columns with names that contain '_' character (ex: 'gdp_capita', 'population_total', etc...). When these names appear as the names of the vectors in the data frame that I get, sometimes I have problems as: > cor(gdp_capita, population_total) Error: object "_capita" not found use of _ is soon to be removed. Is there an automatic way...

...confidence intervals for a linear combination of coefficients, but only for OLS models. For example, the code below calculates the confidence interval for the sum of the coefficient of petrol_A and the coefficient of petrol_B: > results <- lm(all_rural_count_capita ~ petrol_A + petrol_B + gdp_capita) > estimable(results,cm=c(0,1,1,0),conf.int=0.95) However, the estimable function does not seem to work for GLS objects, as shown below. The estimable documentation confirm that the object must be one of the following: lm, glm, lme, lmer. > results.gls <- gls(all_rural_count_capita ~ pe...

> On Sep 7, 2017, at 12:21 PM, Miluji Sb <milujisb at gmail.com> wrote: > > df is a data frame consisting of one variable (iso3 codes) such as > > USA > RUS > ARG > BGD > ITA > FRA > > > Some of these iso3 codes are repeated and I would like the corresponding continent name, the countrycode package does not seem to distinguish between North and

df is a data frame consisting of one variable (iso3 codes) such as USA RUS ARG BGD ITA FRA Some of these iso3 codes are repeated and I would like the corresponding continent name, the countrycode package does not seem to distinguish between North and South America. Thanks. Sincerely, Milu On Thu, Sep 7, 2017 at 9:00 PM, David Winsemius <dwinsemius at comcast.net> wrote: > > >