This is an opportunity for you to think for yourself (r-help) instead of
expecting solutions neatly wrapped and delivered (r-do-my-work-for-me). Remove
the no-longer-needed columns once the desired columns are available.
On January 17, 2021 7:12:28 AM PST, Jibrin Alhassan
<jibrin.alhas...@unn.edu.ng> wrote:
>Hi Barradas,
>Thanks for your assistance. It has brought me closer to what I am
>looking
>for. I tried your code as shown below:
>> df1 <- read.table("SWSdata_1998_2002", header = TRUE)
>> df1$date <- as.Date(paste(df1$year, df1$day),format = "%Y %j",origin
>=
>"1998-01-01")
>> head(df1)
> year day Hr SWS date
>1 1998 1 0 344 1998-01-01
>2 1998 2 0 346 1998-01-02
>3 1998 3 0 356 1998-01-03
>4 1998 4 0 332 1998-01-04
>5 1998 5 0 302 1998-01-05
>6 1998 6 0 329 1998-01-06
>What I need is the last two columns only (SWS, date). The first 3
>columns
>(year, day Hr should go). Your code produced only 6 datasets. My
>dataset is
>1,826 from 1998 to 2002. How do I generate this at once?
>Many many thanks for your time. I have pasted below a section of my
>dataset
>for your guidance, please.
>Jibrin
>year day Hr SWS
>1998 1 0 344.
>1998 2 0 346.
>1998 3 0 356.
>1998 4 0 332.
>1998 5 0 302.
>1998 6 0 329.
>1998 7 0 395.
>1998 8 0 359.
>1998 9 0 471.
>1998 10 0 392.
>1998 11 0 346.
>1998 12 0 387.
>1998 13 0 393.
>1998 14 0 367.
>1998 15 0 320.
>1998 16 0 309.
>1998 17 0 341.
>1998 18 0 329.
>1998 19 0 322.
>1998 20 0 429.
>1998 21 0 433.
>1998 22 0 398.
>1998 23 0 393.
>1998 24 0 393.
>1998 25 0 423.
>1998 26 0 426.
>1998 27 0 429.
>1998 28 0 386.
>1998 29 0 381.
>1998 30 0 375.
>1998 31 0 365.
>1998 32 0 450.
>1998 33 0 381.
>1998 34 0 316.
>1998 35 0 351.
>1998 36 0 306.
>1998 37 0 312.
>1998 38 0 320.
>1998 39 0 339.
>1998 40 0 395.
>1998 41 0 429.
>1998 42 0 479.
>1998 43 0 495.
>1998 44 0 407.
>1998 45 0 358.
>1998 46 0 360.
>1998 47 0 382.
>1998 48 0 394.
>1998 49 0 393.
>1998 50 0 435.
>1998 51 0 408.
>1998 52 0 360.
>1998 53 0 372.
>1998 54 0 376.
>1998 55 0 379.
>1998 56 0 361.
>1998 57 0 333.
>1998 58 0 321.
>1998 59 0 344.
>1998 60 0 412.
>1998 61 0 428.
>1998 62 0 401.
>1998 63 0 369.
>1998 64 0 343.
>1998 65 0 330.
>1998 66 0 317.
>1998 67 0 296.
>1998 68 0 282.
>1998 69 0 404.
>1998 70 0 530.
>1998 71 0 525.
>1998 72 0 484.
>1998 73 0 430.
>1998 74 0 388.
>1998 75 0 347.
>1998 76 0 337.
>1998 77 0 342.
>1998 78 0 305.
>1998 79 0 329.
>1998 80 0 420.
>1998 81 0 564.
>1998 82 0 483.
>1998 83 0 385.
>1998 84 0 393.
>1998 85 0 437.
>1998 86 0 441.
>1998 87 0 434.
>1998 88 0 471.
>1998 89 0 429.
>1998 90 0 412.
>1998 91 0 370.
>1998 92 0 326.
>1998 93 0 357.
>1998 94 0 338.
>1998 95 0 380.
>1998 96 0 339.
>1998 97 0 312.
>1998 98 0 313.
>1998 99 0 327.
>1998 100 0 362.
>1998 101 0 358.
>1998 102 0 387.
>1998 103 0 397.
>1998 104 0 375.
>1998 105 0 350.
>1998 106 0 357.
>1998 107 0 472.
>1998 108 0 526.
>1998 109 0 396.
>1998 110 0 374.
>1998 111 0 376.
>1998 112 0 355.
>1998 113 0 343.
>1998 114 0 425.
>1998 115 0 426.
>1998 116 0 479.
>1998 117 0 469.
>1998 118 0 425.
>1998 119 0 344.
>1998 120 0 341.
>1998 121 0 426.
>1998 122 0 601.
>1998 123 0 476.
>1998 124 0 670.
>1998 125 0 585.
>1998 126 0 496.
>1998 127 0 479.
>1998 128 0 569.
>1998 129 0 531.
>1998 130 0 489.
>1998 131 0 484.
>1998 132 0 480.
>1998 133 0 393.
>1998 134 0 332.
>1998 135 0 327.
>1998 136 0 493.
>1998 137 0 493.
>1998 138 0 430.
>1998 139 0 396.
>1998 140 0 408.
>1998 141 0 416.
>1998 142 0 376.
>1998 143 0 375.
>1998 144 0 415.
>1998 145 0 407.
>1998 146 0 398.
>1998 147 0 352.
>1998 148 0 349.
>1998 149 0 517.
>1998 150 0 597.
>1998 151 0 480.
>1998 152 0 435.
>1998 153 0 408.
>1998 154 0 441.
>1998 155 0 397.
>1998 156 0 374.
>1998 157 0 413.
>1998 158 0 582.
>1998 159 0 513.
>1998 160 0 459.
>1998 161 0 466.
>1998 162 0 414.
>1998 163 0 354.
>1998 164 0 341.
>1998 165 0 343.
>1998 166 0 369.
>1998 167 0 411.
>1998 168 0 355.
>1998 169 0 333.
>1998 170 0 443.
>1998 171 0 426.
>1998 172 0 419.
>1998 173 0 404.
>1998 174 0 387.
>1998 175 0 460.
>1998 176 0 447.
>1998 177 0 469.
>1998 178 0 447.
>1998 179 0 389.
>1998 180 0 375.
>1998 181 0 354.
>1998 182 0 316.
>1998 183 0 369.
>1998 184 0 410.
>1998 185 0 406.
>1998 186 0 477.
>1998 187 0 583.
>1998 188 0 458.
>1998 189 0 386.
>1998 190 0 342.
>1998 191 0 333.
>1998 192 0 369.
>1998 193 0 406.
>1998 194 0 375.
>1998 195 0 332.
>1998 196 0 310.
>1998 197 0 528.
>1998 198 0 530.
>1998 199 0 387.
>1998 200 0 385.
>1998 201 0 349.
>1998 202 0 409.
>1998 203 0 399.
>1998 204 0 619.
>1998 205 0 658.
>1998 206 0 581.
>1998 207 0 445.
>1998 208 0 370.
>1998 209 0 326.
>1998 210 0 334.
>1998 211 0 384.
>1998 212 0 423.
>1998 213 0 412.
>1998 214 0 404.
>1998 215 0 370.
>1998 216 0 384.
>1998 217 0 383.
>1998 218 0 378.
>1998 219 0 461.
>1998 220 0 460.
>1998 221 0 400.
>1998 222 0 447.
>1998 223 0 373.
>1998 224 0 379.
>1998 225 0 374.
>1998 226 0 374.
>1998 227 0 391.
>1998 228 0 348.
>1998 229 0 303.
>1998 230 0 279.
>1998 231 0 312.
>1998 232 0 331.
>1998 233 0 298.
>1998 234 0 341.
>1998 235 0 493.
>1998 236 0 436.
>1998 237 0 400.
>1998 238 0 633.
>1998 239 0 630.
>1998 240 0 583.
>1998 241 0 547.
>1998 242 0 550.
>1998 243 0 499.
>1998 244 0 444.
>1998 245 0 427.
>1998 246 0 401.
>
>On Sat, Jan 16, 2021 at 8:01 AM Rui Barradas <ruipbarra...@sapo.pt>
>wrote:
>
>> Hello,
>>
>> Thanks for the data, it makes things easier.
>>
>> df1 <- read.table("Jibrin_data.txt", header = TRUE)
>> #'data.frame': 168 obs. of 4 variables:
>> # $ year: int 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 ...
>> # $ day : int 1 2 3 4 5 6 7 8 9 10 ...
>> # $ Hr : int 0 0 0 0 0 0 0 0 0 0 ...
>> # $ SWS : num 344 346 356 332 302 329 395 359 471 392 ...
>>
>> Here is a simple way of converting the year and day of year columns
>to a
>> column of class "Date".
>> Like others have said, there are also CRAN packages to handle
>date/time
>> data, my favorite being package lubridate, but base R can do it.
>>
>>
>> df1$date <- as.Date(paste(df1$year, df1$day),
>> format = "%Y %j",
>> origin = "1998-01-01")
>>
>> head(df1)
>> # year day Hr SWS date
>> #1 1998 1 0 344 1998-01-01
>> #2 1998 2 0 346 1998-01-02
>> #3 1998 3 0 356 1998-01-03
>> #4 1998 4 0 332 1998-01-04
>> #5 1998 5 0 302 1998-01-05
>> #6 1998 6 0 329 1998-01-06
>>
>>
>> Hope this helps,
>>
>> Rui Barradas
>>
>>
>> Às 06:48 de 16/01/21, Jibrin Alhassan escreveu:
>> > Hi Barradas
>> > Sorry for the delay. Below is a section of my data. I have up to
>1826
>> > covering 1998 to 2002
>> > year day Hr SWS
>> > 1998 1 0 344.
>> > 1998 2 0 346.
>> > 1998 3 0 356.
>> > 1998 4 0 332.
>> > 1998 5 0 302.
>> > 1998 6 0 329.
>> > 1998 7 0 395.
>> > 1998 8 0 359.
>> > 1998 9 0 471.
>> > 1998 10 0 392.
>> > 1998 11 0 346.
>> > 1998 12 0 387.
>> > 1998 13 0 393.
>> > 1998 14 0 367.
>> > 1998 15 0 320.
>> > 1998 16 0 309.
>> > 1998 17 0 341.
>> > 1998 18 0 329.
>> > 1998 19 0 322.
>> > 1998 20 0 429.
>> > 1998 21 0 433.
>> > 1998 22 0 398.
>> > 1998 23 0 393.
>> > 1998 24 0 393.
>> > 1998 25 0 423.
>> > 1998 26 0 426.
>> > 1998 27 0 429.
>> > 1998 28 0 386.
>> > 1998 29 0 381.
>> > 1998 30 0 375.
>> > 1998 31 0 365.
>> > 1998 32 0 450.
>> > 1998 33 0 381.
>> > 1998 34 0 316.
>> > 1998 35 0 351.
>> > 1998 36 0 306.
>> > 1998 37 0 312.
>> > 1998 38 0 320.
>> > 1998 39 0 339.
>> > 1998 40 0 395.
>> > 1998 41 0 429.
>> > 1998 42 0 479.
>> > 1998 43 0 495.
>> > 1998 44 0 407.
>> > 1998 45 0 358.
>> > 1998 46 0 360.
>> > 1998 47 0 382.
>> > 1998 48 0 394.
>> > 1998 49 0 393.
>> > 1998 50 0 435.
>> > 1998 51 0 408.
>> > 1998 52 0 360.
>> > 1998 53 0 372.
>> > 1998 54 0 376.
>> > 1998 55 0 379.
>> > 1998 56 0 361.
>> > 1998 57 0 333.
>> > 1998 58 0 321.
>> > 1998 59 0 344.
>> > 1998 60 0 412.
>> > 1998 61 0 428.
>> > 1998 62 0 401.
>> > 1998 63 0 369.
>> > 1998 64 0 343.
>> > 1998 65 0 330.
>> > 1998 66 0 317.
>> > 1998 67 0 296.
>> > 1998 68 0 282.
>> > 1998 69 0 404.
>> > 1998 70 0 530.
>> > 1998 71 0 525.
>> > 1998 72 0 484.
>> > 1998 73 0 430.
>> > 1998 74 0 388.
>> > 1998 75 0 347.
>> > 1998 76 0 337.
>> > 1998 77 0 342.
>> > 1998 78 0 305.
>> > 1998 79 0 329.
>> > 1998 80 0 420.
>> > 1998 81 0 564.
>> > 1998 82 0 483.
>> > 1998 83 0 385.
>> > 1998 84 0 393.
>> > 1998 85 0 437.
>> > 1998 86 0 441.
>> > 1998 87 0 434.
>> > 1998 88 0 471.
>> > 1998 89 0 429.
>> > 1998 90 0 412.
>> > 1998 91 0 370.
>> > 1998 92 0 326.
>> > 1998 93 0 357.
>> > 1998 94 0 338.
>> > 1998 95 0 380.
>> > 1998 96 0 339.
>> > 1998 97 0 312.
>> > 1998 98 0 313.
>> > 1998 99 0 327.
>> > 1998 100 0 362.
>> > 1998 101 0 358.
>> > 1998 102 0 387.
>> > 1998 103 0 397.
>> > 1998 104 0 375.
>> > 1998 105 0 350.
>> > 1998 106 0 357.
>> > 1998 107 0 472.
>> > 1998 108 0 526.
>> > 1998 109 0 396.
>> > 1998 110 0 374.
>> > 1998 111 0 376.
>> > 1998 112 0 355.
>> > 1998 113 0 343.
>> > 1998 114 0 425.
>> > 1998 115 0 426.
>> > 1998 116 0 479.
>> > 1998 117 0 469.
>> > 1998 118 0 425.
>> > 1998 119 0 344.
>> > 1998 120 0 341.
>> > 1998 121 0 426.
>> > 1998 122 0 601.
>> > 1998 123 0 476.
>> > 1998 124 0 670.
>> > 1998 125 0 585.
>> > 1998 126 0 496.
>> > 1998 127 0 479.
>> > 1998 128 0 569.
>> > 1998 129 0 531.
>> > 1998 130 0 489.
>> > 1998 131 0 484.
>> > 1998 132 0 480.
>> > 1998 133 0 393.
>> > 1998 134 0 332.
>> > 1998 135 0 327.
>> > 1998 136 0 493.
>> > 1998 137 0 493.
>> > 1998 138 0 430.
>> > 1998 139 0 396.
>> > 1998 140 0 408.
>> > 1998 141 0 416.
>> > 1998 142 0 376.
>> > 1998 143 0 375.
>> > 1998 144 0 415.
>> > 1998 145 0 407.
>> > 1998 146 0 398.
>> > 1998 147 0 352.
>> > 1998 148 0 349.
>> > 1998 149 0 517.
>> > 1998 150 0 597.
>> > 1998 151 0 480.
>> > 1998 152 0 435.
>> > 1998 153 0 408.
>> > 1998 154 0 441.
>> > 1998 155 0 397.
>> > 1998 156 0 374.
>> > 1998 157 0 413.
>> > 1998 158 0 582.
>> > 1998 159 0 513.
>> > 1998 160 0 459.
>> > 1998 161 0 466.
>> > 1998 162 0 414.
>> > 1998 163 0 354.
>> > 1998 164 0 341.
>> > 1998 165 0 343.
>> > 1998 166 0 369.
>> > 1998 167 0 411.
>> > 1998 168 0 355.
>> > Thanks
>> > Jibrin
>> >
>> > On Fri, Jan 15, 2021 at 7:15 PM Rui Barradas <ruipbarra...@sapo.pt
>> > <mailto:ruipbarra...@sapo.pt>> wrote:
>> >
>> > Hello,
>> >
>> > No dataset was attached. Like the posting guide says,
>> >
>> > No binary attachments except for PS, PDF, and some image and
>archive
>> > formats (others are automatically stripped off because they can
>> contain
>> > malicious software). Files in other formats and larger ones
>should
>> > rather be put on the web and have only their URLs posted. This
>way a
>> > reader has the option to download them or not.
>> >
>> >
>> > Can you post sample data? Please post the output of `dput(df)`.
>Or,
>> if
>> > it is too big the output of `dput(head(df, 20))`. (`df` is the
>name
>> of
>> > your dataset.)
>> >
>> > Hope this helps,
>> >
>> > Rui Barradas
>> >
>> > Às 11:30 de 15/01/21, Jibrin Alhassan escreveu:
>> > > Dear R users,
>> > > I am very new to R software. I have solar wind speed data
>needed
>> > for my
>> > > work. How do I convert day in the year to year, month, and
>day
>> with R
>> > > software? I have used this code
>> > > as.Date(0, origin = "1998-01-01")
>> > > but it can only convert one day of the year at a time.
>Meanwhile,
>> > I have up
>> > > to the 1998-2002 data set. Attached is my data.
>> > > Kindly help, please.
>> > > Jibrin Alhassan
>> > > ______________________________________________
>> > > R-help@r-project.org <mailto:R-help@r-project.org> mailing
>list
>> > -- To UNSUBSCRIBE and more, see
>> > > https://stat.ethz.ch/mailman/listinfo/r-help
>> > > PLEASE do read the posting guide
>> > http://www.R-project.org/posting-guide.html
>> > > and provide commented, minimal, self-contained, reproducible
>code.
>> > >
>> >
>>
>
> [[alternative HTML version deleted]]
>
>______________________________________________
>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
--
Sent from my phone. Please excuse my brevity.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
