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Home/ Questions/Recommendation for the error in xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ error
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Giselle O'Sullivan
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Giselle O'Sullivan
Asked: May 12, 20222022-05-12T08:04:31+00:00 2022-05-12T08:04:31+00:00In: r

Recommendation for the error in xy.coords(x, y, xlabel, ylabel, log) : ‘x’ and ‘y’ lengths differ error

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How to check – error in xy.coords(x, y, xlabel, ylabel, log) : ‘x’ and ‘y’ lengths differ? I have the sample detail:

var1 = c(10, 12, 8, 8, 7)
var2 = c(30, 21, 50, 4, 9, 54, 12)
plot(var1, var2)

While I run it, I found the warning message:

Error in xy.coords(x, y, xlabel, ylabel, log) : 
  'x' and 'y' lengths differ

That is my question in my midterm exam, and it is urgent. I searched some solution on some websites, but I didn’t get it. I may miss any line or other changes. I appreciate your assistance!

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    lyytutoria Expert
    2022-05-30T15:29:08+00:00Added an answer on May 30, 2022 at 3:29 pm

    The cause: The variables var1’s and var2’s length are different.

    Solution: Remove values from the longer vector or adding values to the shorter vector, or both.

    var1 = c(10, 12, 8, 8, 7, 5, 6)
    
    var2 = c(30, 21, 50, 4, 9, 54, 12)
    
    length(var1) == length(var2)
    
    plot(var1, var2)

    We will verify that the vectors are of equal length and plot the scatterplot.

    [1] TRUE
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  2. Léo Valette
    2022-05-25T19:35:03+00:00Added an answer on May 25, 2022 at 7:35 pm

    Take, for example, my data

    mod.2 <- lm(CEC ~ clay + ExchNa + ExchCa,
     data = subs.soil.data)

    When you create a model such as this and then want to draw it a plot, plot(mod.2$y, mod.2$fitted.values) will error “Error In Xy.coords(xy.coords[x,y, xlabel. ylabel. log]): The lengths of ‘x’ & ‘y’ differ”

    First, verify length ().

    length(mod.2$y)
    [1] 0

    As you can see, 0 is the length of the dependent variable y. it doesn’t exist.

    Solution
    mod.2 <- lm (CEC ~ clay + ExchNa + ExchCa, data = subs.soil.data, y = TRUE, x = TRUE)
    The error is caused by the fact that x and y were not defined in the previous formula of mod.2.

    plot(mod.2$y, mod.2$fitted.values)
    > length(mod.2$y)
    [1] 146
    > length(mod.2$fitted.values)
    [1] 146
    > 

    This problem is now gone.

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