Question: R kept saying I have non-numeric value in the dataset while I try to run mahalanobis analysis. but I already transformed my categorical value. Please

R kept saying I have non-numeric value in the dataset while I try to run mahalanobis analysis. but I already transformed my categorical value. Please see below.

Mahalanobis: i. What is your Mahalanobis df? ii. What is your Mahalanobis cut off score? iii. How many outliers did you have for Mahalanobis? "{r mahal } as. factor(X08_data$type_work) as . numeric(as . factor(X08_data$type_work)) X08_data$typework2 = as. numeric(as . factor(X08_data$type_work)) mahal = mahalanobis (X08_data[ , -5], colMeans (X08_data[ , -5]), cov(X08_data[ , -5])> cutmahal = qchisq(1-.001, ncol(X08_data[ , -5])) badmahal = mahal > cutmahal table(badmahal) X [1] Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary [11] Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary [21] Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary [31] Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary Secretary [41] Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant [51] Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant [61] Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant [71] Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Assistant Manager Manager Manager Manager [81] Manager Manager Manager Manager Manager Manager [91] Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager Manager [101] Manager Manager Manager Manager Manager [111] Manager Manager Manager Manager Manager Manager [121] Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss [131] Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss Boss [141] Boss Boss Boss [151] Boss Boss Boss Boss Boss Boss Boss Boss Levels: Secretary Assistant Manager Boss [1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 22 [53] 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 [105] 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 [157] 4 4 4 4 Show Traceback Error in colMeans(X08_data[, -5]) : 'x' must be numeric

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