Dotaz: Gnuplot timefmt

[dan]

Nedari se mi rozbehnout gnuplot s nastavenim timefmt
data

Sep 01 00:00:02 Sensor 0 C: 23.12 F: 73.62
Sep 01 00:00:03 Sensor 1 C: 24.31 F: 75.76
Sep 01 00:00:04 Sensor 2 C: 22.94 F: 73.29
Sep 01 00:00:06 Sensor 3 C: 15.88 F: 60.58
Sep 01 00:15:02 Sensor 0 C: 23.12 F: 73.62
Sep 01 00:15:04 Sensor 1 C: 24.31 F: 75.76
Sep 01 00:15:05 Sensor 2 C: 22.94 F: 73.29
Sep 01 00:15:06 Sensor 3 C: 15.62 F: 60.12

setup

set data style lines;
set autoscale
set grid
set key
set nologscale x
set nologscale y
set xdata time
set timefmt "%b %d %H:%M:%S"
set format x "%d"
plot "temp" every 4::0 using 7 smooth unique title '1' , "temp" every 4::2 using 7 smooth unique title'2' , "temp" every 4::1 using 7 smooth unique title'3' , "temp" every 4::3 using 7 smooth unique title'4'
pause 60

error

Need full using spec for x time data

Hledal jsem v man a google, ale nic kloudneho tam nevidim.
Diky za rady

ps: jeste by mne zajimalo, zda se da do 'set title' dat promenna (neco ve smyslu 'date +%Y')

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Odpovědi

[dan]

musíš doplnit specifikaci pro slovo using.

Tj.

plot "temp" every 4::0 using 1:7 smooth unique title '1'

[dan]

Ano, je to tak, diky za radu!
Jeste bych rad vedel, zda je mozne dostat promennou (datum) do title (mozna jsem mel zalozit novy dotaz).

[PM]

Promenne do titulku:
a=123
b="cislo"
set title "test: " . b . "=" . a
plot x


[dan]

...nedari se. Gnuplot skonci, pokud je tam jina nez ciselna hodnota. Zkousel jsem i ruzne varianty s jednouchymi uvozovkami nebo bez, vysledek je tento

gnuplot> b="cislo"
           ^
         "digitemp.plots", line 2: invalid expression

pokud dam cislo, stejne skonci s chybou na radku title

gnuplot> set title "test: " . b . "=" . a
                              ^
         "digitemp.plots", line 3: unexpected or unrecognized option

bezvysledne jsem zkusil i ruzne varianty s date, protoze datum je mym cilem.

[petr]

Podívej se sem.