undefined columns selected error message in R -


I am very new to R and I am using a script written by someone else. Below is a part of the script where I am getting an error message:

error [. Data.frame (this.df.merged, c ("MMWR_week", "syndrome visits",: undefined column selected

I saw other representatives for similar questions And actually I could not solve it. Any help would be greatly appreciated.

  if (% other names in% colnames (this.df.merged)) {this .df.merge $ $ other & lt; -0} this.df.merged.by_week & lt; -gregate (this.df.merged [c ("syndrome visits", "e", "other", "0- 4 "," 25-49 "," 5-24 "," 50-64 "," more than 64 "," f "," m "," u "," edit "," disc ")], = By listing (this DD.mA RM $ mmrr_wec), yoga) colnames (this.df.merged.by_week) & lt; -c "mmwr_webk", "syndrome visits", "e", "other", "0-4", "25-49" , "5-24", "50-64", "More than 64", "F" "M", "U", "Edit", "Disk") Write CSV (this.df.merged.by_week, file = Paste (this.diseaseName, "_Count_Query_Summary_Table_by_Week _", this.beginDate, "_", this .anddate, ".csv", sep = "")) returns (this.df.merged)  
}

This is because this.df.merged can not have a name from the vector C ("syndrome visits", "e", "other", "0-4", "25-49", "5-2

Let me find out if you want to find out more about this "4", "50-64", "more than 64", "F", "M", "U", "edit" That name exists and / or the correct spelling in this DD. There are some sample codes to check that the name exists. It is up to you to decide why they are present, which could have been somewhere else in your code before this point.

  if (! (% ("%"% Colnames (This Df .merged))) {this.df.merge $ $ other & lt; -0} namevector = c ("syndrome visits", "e", "other", "0-4", "25-49", "5-24", "50-64", "more than 64" "F", "M", "U", "Edit", "Disk") n = colnames (this.df.merged) tmp = sapply (namevector, function (x) {if ((any (tmp)) Return (TRUE)} return (FALSE)} ("Some column names were not found") (This is DD. MRZ. By_Weeker & lt; -date (this DDMM [C (print (Paste (X, "not found")) Return (TRUE)} "Syndrome visits", "e", "other", "0-4", "25-49", "5-24", "50-64", "more than 64", "f", "m" , "U", "edit", "disc")], = by list (this.df.marged $ MMWR_week), amount) col Names (this.df.merged.by_week) & lt; -c ("MMWR_week", "syndrome visits", "e", "other", "0-4", "25-49", "5-24" , "50-64", "More than 64", "F", "M", "U", "Edit", "Disk") write csv (this.df.merged.by_week, file = paste (this. DiseaseName, "_  

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