National Presto Industries, Inc. sells PRODUCTS (including pressure cookers and electric appliances), PARTS, and ACCESSORIES on this website. Orders placed online can only be shipped to addresses within the 48 contiguous United States. For orders shipping to Alaska, Hawaii, and U.S. territories, please contact our Customer Service Department at 1-800-877-0441 as additional shipping charges will need to be added to the order. Only parts are shipped to Canada, no products, and need to be ordered over the phone. Representatives are available weekdays from 8:00 a.m. to 4:00 p.m. Central Time to assist you.
Any shipping charges are calculated during checkout. At this time, most PRODUCTS ship free to anywhere within the 48 contiguous United States and this will be noted on their main product pages. NOTE: There is a shipping charge for parts and accessories (see Shipping Information for PARTS and ACCESSORIES below). You will see the full amount of your purchase, including any shipping charges and taxes, before you confirm your order. If you live in Alaska, Hawaii, or a U.S. Territory, please call Presto Customer Service at 1-800-877-0441 to place your order as there will be additional shipping costs. Representatives are available weekdays from 8 a.m. to 4 p.m. Central Time to assist you.
Shipping to a P.O. Box or APO/FPO Address: We cannot ship PRODUCTS to a P.O. Box or an APO/FPO address. Please provide a street address for your shipment. If you can not receive shipments to your physical address, please call the Presto Customer Service Department at 1-800-877-0441 for assistance.
If you wish to return a PRODUCT that was purchased directly from Presto LESS than 30 days ago, please contact the Presto Consumer Service Department at 1-800-877-0441 or via email at www.gopresto.com/contact. Representatives are available weekdays from 8 a.m. to 4 p.m. Central Time to assist with the return process, answer questions, and troubleshoot any issues. Refunds are only given for new, unused, and undamaged PRODUCTS that were purchased directly from Presto. A refund will be issued once the PRODUCT is received by Presto. Shipping costs for returning PRODUCTS are your responsibility and we recommend using an insured and trackable carrier. Return the PRODUCT to the address provided by our Customer Service Department and include a copy of your packing slip/invoice.
If you believe your appliance is defective, please contact the Presto Consumer Service Department at 1-800-877-0441 or via email at www.gopresto.com/contact. Representatives are available weekdays from 8 a.m. to 4 p.m. Central Time to assist you. Please have the appliance model and series numbers available and details of the issue you are having with the appliance. Please refer to the instruction book provided with the appliance for warranty details.
These shipping charges apply only to PARTS and ACCESSORY orders shipping to anywhere in the 48 contiguous United States. If you live in Alaska, Hawaii, a U.S. Territory, or Canada, please call Presto Customer Service at 1-800-877-0441 to place your order as shipping costs will be different than that shown on the below chart. Representatives are available weekdays from 8 a.m. to 4 p.m. Central Time to assist you.
Postage and handling charges and applicable sales tax will be added automatically during the checkout process. Postage and handling charges are calculated based upon the total dollar amount of your order (see chart below).
If you have ordered multiple items, they may be shipped separately resulting in you receiving multiple packages. If PRODUCTS are also included in your order, they will be shipped separately via FedEx (see above).
If need assistance or have a question about your return, contact the Presto Consumer Service Department at 1-800-877-0441 or via email at www.gopresto.com/contact. Representatives are available weekdays from 8 a.m. to 4 p.m. Central Time to assist with the return process, answer questions, and troubleshoot any issues. Refunds are only given for new, unused, and undamaged items that were purchased directly from Presto. A refund will be issued once the item is received by Presto. Refunds will be for the cost of the item only. Shipping costs are nonrefundable.
If you need assistance or have any questions, please contact our Customer Service Department at 1-800-877-0441. Representatives are available weekdays from 8:00 a.m. to 4:00 p.m. Central Time or via email at www.gopresto.com/contact.
Thank you for contacting National Presto Industries. Your email is very important to us and we will respond to you as quickly as we can. Please know we are assisting many consumers and it may take us a few days to respond.
If you need parts for a Presto appliance, please call our Consumer Service Dept. at 1-800-877-0441 Monday - Friday 8:00 - 4:00 p.m. CST or visit our website at www.gopresto.com. Your local hardware store may also carry a good selection of genuine Presto parts. To order replacement parts, you will need the model and series numbers from your product. We value you as a consumer and thank you for your patience.
Compute the Beta cdf with given a, b parameters: P(N < value; a, b).The a, b parameters must be positive real numbers and value must be a real value (all of type DOUBLE).The value must lie on the interval [0, 1].
Compute the Binomial cdf with given numberOfTrials and successProbability (for a single trial): P(N < value).The successProbability must be real value in [0, 1], numberOfTrials and value must bepositive integers with numberOfTrials greater or equal to value.
Compute the Chi-square cdf with given df (degrees of freedom) parameter: P(N < value; df).The df parameter must be a positive real number, and value must be a non-negative real value (both of type DOUBLE).
Compute the F cdf with given df1 (numerator degrees of freedom) and df2 (denominator degrees of freedom) parameters: P(N < value; df1, df2).The numerator and denominator df parameters must be positive real numbers. The value must be a non-negative real number.
Compute the Normal cdf with given mean and standard deviation (sd): P(N < value; mean, sd).The mean and value must be real values and the standard deviation must be a realand positive value (all of type DOUBLE).
Compute the inverse of the Beta cdf with given a, b parameters for the cumulativeprobability (p): P(N < n). The a, b parameters must be positive real values (all of type DOUBLE).The probability p must lie on the interval [0, 1].
Compute the inverse of the Cauchy cdf with given parameters median and scale (gamma) for the probability p.The scale parameter must be a positive double. The probability p must be a double on the interval [0, 1].
Compute the inverse of the Chi-square cdf with given df (degrees of freedom) parameter for the cumulativeprobability (p): P(N < n). The df parameter must be positive real values.The probability p must lie on the interval [0, 1].
Compute the inverse of the Gamma cdf with given shape and scale parameters for the cumulativeprobability (p): P(N < n). The shape and scale parameters must be positive real values.The probability p must lie on the interval [0, 1].
Compute the inverse of the F cdf with a given df1 (numerator degrees of freedom) and df2 (denominator degrees of freedom) parametersfor the cumulative probability (p): P(N < n). The numerator and denominator df parameters must be positive real numbers.The probability p must lie on the interval [0, 1].
Compute the inverse of the Laplace cdf with given mean and scale parametersfor the cumulative probability (p): P(N < n). The mean must bea real value and the scale must be a positive real value (both of type DOUBLE).The probability p must lie on the interval [0, 1].
Compute the inverse of the Normal cdf with given mean and standarddeviation (sd) for the cumulative probability (p): P(N < n). The mean must bea real value and the standard deviation must be a real and positive value (both of type DOUBLE).The probability p must lie on the interval (0, 1).
A Unicode string is prefixed with U& and requires an escape characterbefore any Unicode character usage with 4 digits. In these examples\2603 and #2603 represent a snowman character. Long Unicode codeswith 6 digits require a plus symbol + before the code. For example,use \+01F600 for a grinning face emoji.
Fixed length character data. A CHAR type without length specified has adefault length of 1. A CHAR(x) value always has x characters. For example,casting dog to CHAR(7) adds 4 implicit trailing spaces. Leading and trailingspaces are included in comparisons of CHAR values. As a result, two charactervalues with different lengths (CHAR(x) and CHAR(y) where x != y) are neverequal, but comparison of such values implicitly converts the types to the samelength and pads with spaces so that the following query returns true:
When formatting an IPADDRESS, any address within the mapped range willbe formatted as an IPv4 address. Other addresses will be formatted as IPv6using the canonical format defined in RFC 5952.
A quantile digest (qdigest) is a summary structure which captures the approximatedistribution of data for a given input set, and can be queried to retrieve approximatequantile values from the distribution. The level of accuracy for a qdigestis tunable, allowing for more precise results at the expense of space.
A qdigest can be used to give approximate answer to queries asking for what valuebelongs at a certain quantile. A useful property of qdigests is that they areadditive, meaning they can be merged together without losing precision.
A qdigest may be helpful whenever the partial results of approx_percentilecan be reused. For example, one may be interested in a daily reading of the 99thpercentile values that are read over the course of a week. Instead of calculatingthe past week of data with approx_percentile, qdigests could be storeddaily, and quickly merged to retrieve the 99th percentile value.
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