Error in if (dformat == 1) { : argument is of length zero

[Karteek Pradyumna Bulusu]

Hey all,

I am new to this field and was keen to know GGIR working. While trying it over my CSV file which was accelerometer, gyroscope and magnetometer reading, I am getting following error.

This might look stupid but since I am beginner, I would just take some help.

Code:

df <- read.table(file = "sas16-challenge.csv", header = TRUE, sep = ",")

library(GGIR)

data(data.getmeta)

data("data.inspectfile")

data("data.calibrate")

i = g.inspectfile(df)

Error:

> i = g.inspectfile(df)

Error in if (dformat == 1) { : argument is of length zero

Thanks guys,

Best

Karteek.

[Vincent van Hees]

Hi Karteek,

1. GGIR is can only deal with files in specific formats as explained in the tutorial. See an example csv-file attached. You will need to adapt your own data to fit with this format. GGIR is not designed to handle gyroscope or magnetometer data, so please omit those from your data.

2. Your function input should be a path to a file as shown in the function documentation, e.g. g.inspecfile("C:/yourdir/yourfile.csv"), and not a dataframe.

Best wishes,

Vincent

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