我想使用gnuplot从csv文件中绘制几行,这些行具有不固定数量的标题行和列。该文件可能如下所示:
HEADERLINE1 = TEXTTEXTTEXT
HEADERLINE2 = TEXTTEXTTEXT
HEADERLINE3 = 1248243
HEADERLINE4 = 329340
COLUMN_X COLUMN_1 COLUMN_2
1 36.9194 30.0000
2 19.0977 20.0000
3 12.9250 10.0000
4 10.7134 0.0000
通常没有标题行我会使用这样的东西:
stats 'datafile.csv' nooutput
set key autotitle columnheader
plot for [t=2:STATS_columns] \
datafile \
using 1:t \
with linespoints
但是使用标题行时,autotitle命令会使用这些标题行。有没有办法让autotitle从实际的列/秒块中选择列头/忽略标题?
由于
答案 0 :(得分:2)
如果标题行和数据之间始终至少有两个空行,则可以使用int(10) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
。 <div class="col-md-4">
<h5 class="control-label" style="font-family:Lucida Calligraphy;margin-left: -15px">Date:</h5>
<input type="text" name="datepicker" class="form-control" placeholder='Select date' id="datepicker" style="margin-left: -15px"/>
<script>
$(function() {
$('#datepicker').datepicker({
minDate: 0,
dateFormat: 'yy-mm-dd'
});
});
</script>
</div>
<div class="col-md-4">
<h5 for="inputDate" class="control-label" style="font-family:Lucida Calligraphy;margin-left: -15px">Time: </h5>
<select type="text" name="time" id="time" class="form-control">
<option>Select time</option>
<option>08:00 AM</option>
<option>09:00 AM</option>
<option>10:00 AM</option>
<option>11:00 AM</option>
<option>01:00 PM</option>
<option>02:00 PM</option>
<option>03:00 PM</option>
<option>04:00 PM</option>
<option>05:00 PM</option>
</select>
</div>
会给您一些警告,但结果符合要求:
<?php
include('db.php');
if(isset($_POST['reserve'])){
$wdate = $_POST['datepicker'];
$wtime = $_POST['time'];
$wdate_array = array();
$wtime_array = array();
$insertDate=$conn->query("INSERT INTO date_tbl (date, time, ordertype) VALUES ('$wdate','$wtime',0)");
$q=$conn->query("SELECT * FROM date_tbl");
$dateRow=mysqli_num_rows($q);
while($row=mysqli_fetch_array($q)){
$wdate_array[]=$row['date'];
$wtime_array[]=$row['time'];
}
if(array_intersect($wdate_array, $wtime_array)){
echo "<p style='text-align:center;color:red;'><span class='fa fa-warning'></span> Date & Time Invalid!</p>";
}else{
echo "<p style='text-align:center;color:green;'><b></b> Date & Time are available!</p>";
}
}
?>
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