Conditionally Remove Row from Data Frame in R (3 Examples) | How to Delete Rows of Matrix or Table

R code of this video:

x2 = letters[1:5],
x3 = "x")

##### Example 1
data[data$x1 != 2, ] # Remove row based on condition

##### Example 2
data[data$x1 != 2 & data$x2 != "e", ] # Multiple conditions

##### Example 3
subset(data, data$x1 != 2 & data$x2 != "e") # Apply subset function

[philippagadsby]

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[michaelrussi]

The best channel for learning R! Thank you!

[raffyraffy]

Hi, sir I'm just wondering how to remove rows that have inconsistent string length in a huge data set.

[kseniyapak]

hey thanks for the vid. do u know by chance how to remove rows in two time series that have intercept values?

[henrytadja]

Hey sir, i was wondering if you know how to remove only a specific percentage of row where we have a specific value. For exemple we have 10 rows with a value of 1 and we want to remove half of those row

[heekyunghong]

Hello. Thanks for the video. what if I want to remove columns with all zeros? I want to keep the first column with ID, but want to remove columns 2-7 with all zeros.

[byoo]

Hi, I really tried to do this question but I could not, can u please help me with how to write the code for it?

4.7 Use the subset function to return a data frame made from the Cars93 (MASS) data frame consisting only of non-USA cars in origin, with 4 cylinders and a maximum price of $15, 000 or less.

> subset(Cars93, Origin=="non-USA", Cylinders=1:4, Max.Price <= 15)
this is how I wrote it but Its did not gave me "4 cylinders" and "maximum price of $15, 000 or less."


thank you

[zakjay]

what if I want to remove column, or few items from a particular column? I hope you will answer this.

[danielricardo]

Hi I just wanted to tell you that this method doesnt work in the new update

[narekmirzoyan]

Hi, but what is about the case when we want to remove several rows in one column?

[jullsjocson]

i got an error.... "Error: unexpected numeric constant"