Change column names in dataframe based on matching to another dataframe by dplyr

We could use match

names(df)[-1] <- as.character(df2$Tumor_name[match(names(df)[-1], df2$Sample_name)])
df

#  Gene_Symbol   Tumor56   Tumor17   Tumor99    Tumor2  Tumor34  Tumor84  Tumor51
#1       Gene1  85657.98  10423.41  18778.68  23919.53       NA       NA       NA
#2       Gene2  54417.79  41660.73  43655.80  47829.02 46677.20 68596.23 80506.15
#3       Gene3 110949.33  40094.55        NA        NA 63389.45 56802.61 48722.99
#4       Gene4  53197.45  49519.78  57447.09  51478.58 48722.15 44712.64 38629.01
#5       Gene5  87156.80 129387.11 113266.15 116275.34       NA       NA       NA
#6       Gene6        NA        NA  44810.26  43110.95 77135.52 47744.18 37885.00
#7       Gene7  23880.28  23903.26  26316.65  25417.46 40265.69 33689.63 36638.02

Tags:

Rename

R

Columnname

Dataframe

Dplyr

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