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error -Exploratory data analysis, 11 - hierarchical cluster analysis #512

Closed maheshwickramarachchi closed 8 years ago

maheshwickramarachchi commented 8 years ago

hi,

I get this error after i completed 79% of the lesson. could you please tell me what should i do. i would be much grateful if any one could give me a solution asap since i have to submit my coursera assignment tonight.

| We've subsetted some vehicle data from mtcars, the Motor Trend Car | Road Tests which is part of the package datasets. The data is in | the matrix mt and contains 6 factors of 11 cars. Run heatmap now | with mt as its only argument.

skip() Error in heatmap(mt) : 'x' must be a numeric matrix

thanks!

seankross commented 8 years ago

I'm having trouble reproducing this error. Are you sure you created heatmap in a previous step? Did you try restarting the lesson?

egruhn commented 7 years ago

I am getting the same error when applying heatmap(mt) in lesson 11.

| We've subsetted some vehicle data from mtcars, the Motor Trend Car Road Tests which | is part of the package datasets. The data is in the matrix mt and contains 6 factors | of 11 cars. Run heatmap now with mt as its only argument.

heatmap(mt) Error in heatmap(mt) : 'x' must be a numeric matrix

I have restarted the lesson 4 times now in both R and R Studio